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We rationally synthesized the thermoplastic and hydrophilic poly(urethane-acrylate) (HPUA) binder for a type of printable and stretchable Ag flakes–HPUA (Ag-HPUA) electrodes in which the conductivity can be enhanced by human sweat. In the presence of human sweat, the synergistic effect of Cl− and lactic acid enables the partial removal of insulating surfactant on silver flakes and facilitates sintering of the exposed silver flakes, thus the resistance of Ag-HPUA electrodes can be notably reduced in both relaxed and stretched state. The on-body data show that the resistance of one electrode has been decreased from 3.02 to 0.62 ohm during the subject’s 27-min sweating activity. A stretchable textile sweat-activated battery using Ag-HPUA electrodes as current collectors and human sweat as the electrolyte was constructed for wearable electronics. The enhanced conductivity of the wearable wiring electrode from the reaction with sweat would provide meritorious insight into the design of wearable devices.
Jian Lv; Gurunathan Thangavel; Yi Li; Jiaqing Xiong; Dace Gao; Jinghao Ciou; Matthew Wei Ming Tan; Izzat Aziz; Shaohua Chen; Juntong Chen; Xinran Zhou; Wei Church Poh; Pooi See Lee. Printable elastomeric electrodes with sweat-enhanced conductivity for wearables. Science Advances 2021, 7, eabg8433 .
AMA StyleJian Lv, Gurunathan Thangavel, Yi Li, Jiaqing Xiong, Dace Gao, Jinghao Ciou, Matthew Wei Ming Tan, Izzat Aziz, Shaohua Chen, Juntong Chen, Xinran Zhou, Wei Church Poh, Pooi See Lee. Printable elastomeric electrodes with sweat-enhanced conductivity for wearables. Science Advances. 2021; 7 (29):eabg8433.
Chicago/Turabian StyleJian Lv; Gurunathan Thangavel; Yi Li; Jiaqing Xiong; Dace Gao; Jinghao Ciou; Matthew Wei Ming Tan; Izzat Aziz; Shaohua Chen; Juntong Chen; Xinran Zhou; Wei Church Poh; Pooi See Lee. 2021. "Printable elastomeric electrodes with sweat-enhanced conductivity for wearables." Science Advances 7, no. 29: eabg8433.
With the development of modern industry, the production of harmful gases brought about by the growth of industrial production will increase, seriously endanger human health, and will also cause pollution to the environment. The development of high-performance sensing materials to detect harmful gases has become an urgent problem to be solved in today's society. Based on the first-principles study, this paper analyzed the most stable doping points of Cu atom on the WS2 surface, and then calculates and compares the adsorption energy, charge transfer, adsorption distance and other parameters. At the microscopic level, we analyzed in detail the interaction between Cu doping WS2 (Cu-WS2) and four harmful gases (CO, CO2, NO, NO2). In addition, the sensing behavior of each gas molecule to the four gases was further evaluated by estimating the time required to remove each gas molecule from the surface of Cu-WS2. The results show that Cu atom tend to be located on top of the W atom and lead to a strong n-type doping, which will lead to an increase in the conductivity of WS2. Under certain conditions, high response and reasonable recovery time indicate that Cu-WS2 has ideal sensing behavior for CO and NO gases, while the very short recovery time indicates that Cu-WS2 was not suitable for detecting CO2 in actual engineering, and for NO2 gas, larger adsorption energy makes Cu-WS2 more suitable for gas scavenger. This work shows that Cu-WS2 is expected to become a new gas warning material or adsorption material for the detection and removal of harmful gases.
Xiaoxing Zhang; Jincong Wang; Dachang Chen; Li Liu. The adsorption performance of harmful gas on Cu doped WS2: A first-principle study. Materials Today Communications 2021, 28, 102488 .
AMA StyleXiaoxing Zhang, Jincong Wang, Dachang Chen, Li Liu. The adsorption performance of harmful gas on Cu doped WS2: A first-principle study. Materials Today Communications. 2021; 28 ():102488.
Chicago/Turabian StyleXiaoxing Zhang; Jincong Wang; Dachang Chen; Li Liu. 2021. "The adsorption performance of harmful gas on Cu doped WS2: A first-principle study." Materials Today Communications 28, no. : 102488.
Sulfur hexafluoride (SF6), one of the most greenhouse gases with global warming potential of 23500 and atmospheric lifetime of 3200 years, has been widely used in gas insulating equipment. Seeking for eco-friendly gas insulating medium to substitute SF6 has been a hot topic in power industry over the past five years. The performance evaluation of eco-friendly gas insulating medium concentrate on several dimensions including the stability and decomposition characteristics. This review focuses on recent advances on the decomposition characteristic of eco-friendly gas insulating medium. The basic theoretical and experimental methods, discharge decomposition, thermal stability and gas-solid interface interaction properties of several potential eco-friendly gas insulating mediums were summarized. The existing problems and future research directions were also prospected.
Song Xiao; Shengyao Shi; Yi Li; Fanchao Ye; Yalong Li; Shuangshuang Tian; Ju Tang; Xiaoxing Zhang. Review on decomposition characteristics of eco-friendly gas insulating medium for high voltage gas insulated equipment. Journal of Physics D: Applied Physics 2021, 1 .
AMA StyleSong Xiao, Shengyao Shi, Yi Li, Fanchao Ye, Yalong Li, Shuangshuang Tian, Ju Tang, Xiaoxing Zhang. Review on decomposition characteristics of eco-friendly gas insulating medium for high voltage gas insulated equipment. Journal of Physics D: Applied Physics. 2021; ():1.
Chicago/Turabian StyleSong Xiao; Shengyao Shi; Yi Li; Fanchao Ye; Yalong Li; Shuangshuang Tian; Ju Tang; Xiaoxing Zhang. 2021. "Review on decomposition characteristics of eco-friendly gas insulating medium for high voltage gas insulated equipment." Journal of Physics D: Applied Physics , no. : 1.
Among the numerous novel eco-friendly insulating gases, C4F7N has attracted much attention due to its excellent electrical performance. However, except for the electrical perfomance, the compatibility between the gas medium and the sealing materials is equally important for gas-insulated equipment. At present, studies about the compatibility between C4F7N and EPDM, a widely used sealing material in power systems, are available in some previous works, but few focused on the compatibility comparison between C4F7N gas mixtures and EPDM with different third monomers. In this paper, we carried out the thermal aging test on ENB-EPDM, DCPD-EPDM, and C4F7N gas mixture to perfect the compatibility mechanism between EPDM and C4F7N. It was found that both of the EPDM reacted with the gas mixture and led to the property changes in the solid samples and the decomposition of C4F7N. On the other hand, by coating silicone grease, the contact between gas and rubber was effectively blocked and the concentration of the decomposition product was significantly reduced. The performance comparison indicates that ENB-EPDM is more suitable for sealing the C4F7N gas mixture, which is due to the superior thermal stability of ENB.
Xiaoxing Zhang; Peng Wu; Lin Cheng; Sicong Liang. Compatibility and Interaction Mechanism between EPDM Rubber and a SF6 Alternative Gas—C4F7N/CO2/O2. ACS Omega 2021, 6, 13293 -13299.
AMA StyleXiaoxing Zhang, Peng Wu, Lin Cheng, Sicong Liang. Compatibility and Interaction Mechanism between EPDM Rubber and a SF6 Alternative Gas—C4F7N/CO2/O2. ACS Omega. 2021; 6 (20):13293-13299.
Chicago/Turabian StyleXiaoxing Zhang; Peng Wu; Lin Cheng; Sicong Liang. 2021. "Compatibility and Interaction Mechanism between EPDM Rubber and a SF6 Alternative Gas—C4F7N/CO2/O2." ACS Omega 6, no. 20: 13293-13299.
Hongtu Cheng; Xiaoxing Zhang; Ju Tang; Song Xiao; Shiyi Mao; Dibo Wang; Ran Zhuo. Research on the selection and layout of the cantilever sensor based on photoacoustic spectroscopy gas detection technology. Engineering Research Express 2021, 1 .
AMA StyleHongtu Cheng, Xiaoxing Zhang, Ju Tang, Song Xiao, Shiyi Mao, Dibo Wang, Ran Zhuo. Research on the selection and layout of the cantilever sensor based on photoacoustic spectroscopy gas detection technology. Engineering Research Express. 2021; ():1.
Chicago/Turabian StyleHongtu Cheng; Xiaoxing Zhang; Ju Tang; Song Xiao; Shiyi Mao; Dibo Wang; Ran Zhuo. 2021. "Research on the selection and layout of the cantilever sensor based on photoacoustic spectroscopy gas detection technology." Engineering Research Express , no. : 1.
Building an intelligent interface between plants and the environment is of paramount importance for real-time monitoring of the health status of plants, especially promising for high agricultural yield. Although the advancement of various sensors allows automated monitoring, developing a sustainable power supply for these electronic devices remains a formidable challenge. Herein, a waterproof and breathable triboelectric nanogenerator (WB-TENG) is designed based on poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) nanofibers embedded with fluorinated carbon nanotubes (F-CNT) microspheres, which was realized by simultaneous electrospinning and electrospraying, respectively. Using carbon nanotubes (CNT) as the electrode, the WB-TENG shows micro-to-nano hierarchical porous structures and high electrostatic adhesion, exhibiting a high output power density of 330.6 μW cm–2, breathability, and hydrophobicity. Besides, the WB-TENG can be conformally self-attached to plant leaves without sacrificing the intrinsic physiological activities of plants, capable of harvesting typical environmental energy from wind and raindrops. Results demonstrate that the WB-TENG can serve as a sustainable power supply for a wireless plant sensor, enabling real-time monitoring of the health status of plants. This work realizes the concept of constructing a plant compatible TENG with environment adaptivity and energy scavenging ability, showing great potential in building a self-powered agriculture system.
Lingyi Lan; Jiaqing Xiong; Dace Gao; Yi Li; Jian Chen; Jian Lv; Jianfeng Ping; Yibin Ying; Pooi See Lee. Breathable Nanogenerators for an On-Plant Self-Powered Sustainable Agriculture System. ACS Nano 2021, 15, 5307 -5315.
AMA StyleLingyi Lan, Jiaqing Xiong, Dace Gao, Yi Li, Jian Chen, Jian Lv, Jianfeng Ping, Yibin Ying, Pooi See Lee. Breathable Nanogenerators for an On-Plant Self-Powered Sustainable Agriculture System. ACS Nano. 2021; 15 (3):5307-5315.
Chicago/Turabian StyleLingyi Lan; Jiaqing Xiong; Dace Gao; Yi Li; Jian Chen; Jian Lv; Jianfeng Ping; Yibin Ying; Pooi See Lee. 2021. "Breathable Nanogenerators for an On-Plant Self-Powered Sustainable Agriculture System." ACS Nano 15, no. 3: 5307-5315.
Ring Main Units (RMU) are commonly used in the power system. At present, there is no example of partial discharge (PD) detection in RMU by optical method. In this article, the PD in RMU was detected by optical method. Meanwhile, the characteristics of the optical signals and the influential factors have been analyzed. The phase, amplitude and quantity characteristics of the PD optical signals in the positive and negative half cycle was analyzed and listed and we can find the PD optical signals under four typical insulating defects have their own characteristics; if the output of the PMT have not reach it saturation value, the maximum amplitude of the optical signals will increase with the increase of the applied voltage while the average amplitude of the optical signals did not always increase except the insulation gap defect; besides, the number of the optical signals also have a positive relationship with the applied voltage. When the optical receiving length quadruple, the initial PD voltage (IPDV) of optical method has decreased about 14.7% while the number of PD optical signals has increased about 1046.5%; when the pressure changing from 0.1 MPa to 0.14 MPa, the IPDV has increased about 83.65% while the signals number has decreased about 36.23%; when the distance between the optical fiber and the defect model changing from 2.5 cm to 7.5 cm, the IPDV has increased about 9.3% while the signals number has decreased about 65.7%.
Hongtu Cheng; Xiaoxing Zhang; Ju Tang; Song Xiao; Tingting Wang; Bing Luo; Shuangshuang Tian. The application of fluorescent optical fiber in partial discharge detection of Ring Main Unit. Measurement 2021, 174, 108979 .
AMA StyleHongtu Cheng, Xiaoxing Zhang, Ju Tang, Song Xiao, Tingting Wang, Bing Luo, Shuangshuang Tian. The application of fluorescent optical fiber in partial discharge detection of Ring Main Unit. Measurement. 2021; 174 ():108979.
Chicago/Turabian StyleHongtu Cheng; Xiaoxing Zhang; Ju Tang; Song Xiao; Tingting Wang; Bing Luo; Shuangshuang Tian. 2021. "The application of fluorescent optical fiber in partial discharge detection of Ring Main Unit." Measurement 174, no. : 108979.
Sulfur hexafluoride (SF6) is widely used in the power industry because of its excellent insulation and arc extinguishing performance. However, the high greenhouse effect of this material is being restricted by many countries around the world, thereby discouraging its usage. As a potential alternative to SF6, the compatibility of C5F10O with conductive copper materials used in electrical equipment is of great significance in ensuring the safe and stable operation of environmentally friendly gas-insulated equipment. In this paper, the interaction among C5F10O/N2, C5F10O/air gas mixture, and copper was studied via experiments and simulations. When the C5F10O/N2 (or air) gas mixture comes in contact with copper at the gas–solid interface, a small portion of C5F10O is decomposed to form C3F6 (or C3F6 and C3F6O) at high temperatures. Meanwhile, at low temperatures (120 °C), the C5F10O/air gas mixture becomes more compatible with copper than with the C5F10O/N2 gas mixture. When the experiment temperatures range between 170 °C and 220 °C, the compatibility of the C5F10O/air gas mixture with copper is significantly inferior to its compatibility with copper. Under high temperatures, the C5F10O/air gas mixture shows severe corrosion on the copper surface due to the presence of O2, forms a thick cubic grain, and emits irritating gases. The simulations show that the carbonyl group in C5F10O is chemically active and can be easily adsorbed on the copper surface. An anti-corrosion treatment must be performed on copper materials in manufacturing equipment. The findings provide an important reference for the application of C5F10O gas mixture.
Yalong Li; Xiaoxing Zhang; Yalong Xia; Yi Li; Zhuo Wei; Yi Wang; Song Xiao. Study on the Compatibility of Eco-Friendly Insulating Gas C5F10O/N2 and C5F10O/Air with Copper Materials in Gas-Insulated Switchgears. Applied Sciences 2020, 11, 197 .
AMA StyleYalong Li, Xiaoxing Zhang, Yalong Xia, Yi Li, Zhuo Wei, Yi Wang, Song Xiao. Study on the Compatibility of Eco-Friendly Insulating Gas C5F10O/N2 and C5F10O/Air with Copper Materials in Gas-Insulated Switchgears. Applied Sciences. 2020; 11 (1):197.
Chicago/Turabian StyleYalong Li; Xiaoxing Zhang; Yalong Xia; Yi Li; Zhuo Wei; Yi Wang; Song Xiao. 2020. "Study on the Compatibility of Eco-Friendly Insulating Gas C5F10O/N2 and C5F10O/Air with Copper Materials in Gas-Insulated Switchgears." Applied Sciences 11, no. 1: 197.
Perfluoroisobutyronitrile (C4F7N)/CO2/O2 has been considered as a potential eco-friendly gas insulating medium to replace SF6 due to its unique dielectric properties. Nowadays, few studies on the thermal stability and decomposition properties of C4F7N/CO2/O2 gas mixture were reported, which needs to be evaluated comprehensively. Herein, for the first time, we explored the effect of oxygen and temperature on thermal decomposition characteristics of C4F7N/CO2/O2 gas mixture. It was found that CF4, C3F8, C3F6, CO, COF2, CF3CN, C2F5CN and C2N2 are the main by-products of C4F7N/CO2/O2 gas mixture upon decomposition. The addition of 2%-10% O2 in the C4F7N/CO2 gas mixture yielded decreased of C3F6 and C2N2 while the increase of other by-products. The yields and effective formation rates of C3F8 and COF2 accelerated when the content of O2 was higher than 8%. In terms of practical application, adding 4-6% O2 to C4F7N/CO2 gas mixture is appropriate and COF2, C2N2, C2F5CN can be used as the characteristic products to reflect the severity of partial overheating fault of C4F7N/CO2/O2 gas insulated equipment.
Fanchao Ye; Xiaoxing Zhang; Cheng Xie; Xiang Sun; Peng Wu; Song Xiao; Ju Tang; Yi Li. Effect of Oxygen and Temperature on Thermal Decomposition Characteristics of C4F7N/CO2/O2 Gas Mixture for MV Equipment. IEEE Access 2020, 8, 221004 -221012.
AMA StyleFanchao Ye, Xiaoxing Zhang, Cheng Xie, Xiang Sun, Peng Wu, Song Xiao, Ju Tang, Yi Li. Effect of Oxygen and Temperature on Thermal Decomposition Characteristics of C4F7N/CO2/O2 Gas Mixture for MV Equipment. IEEE Access. 2020; 8 (99):221004-221012.
Chicago/Turabian StyleFanchao Ye; Xiaoxing Zhang; Cheng Xie; Xiang Sun; Peng Wu; Song Xiao; Ju Tang; Yi Li. 2020. "Effect of Oxygen and Temperature on Thermal Decomposition Characteristics of C4F7N/CO2/O2 Gas Mixture for MV Equipment." IEEE Access 8, no. 99: 221004-221012.
This work describes plasma destruction of SF6 in a zirconia (ZrO2) packed bed plasma reactor (PBR). Electric signals, equivalent parameters, emission spectra and degradation results have been utilized to evaluate the influence of ZrO2 size on PBR discharge characteristics and SF6 degradation. The results present that the size of ZrO2 has a significant impact on PBR discharge characteristics due to its influence on physical parameters. Moreover, bigger ZrO2 beads packing shows a better performance in SF6 degradation because of longer gas residence time. In addition, the key operating parameters including flowrate, SF6 concentration, oxygen concentration, and water vapor concentration were optimized by response surface methodology (RSM) with Box-Behnken design (BBD). The proposed optimization model shows satisfactory correlation between the predicted and actual results. For energy yield (EY), the mutual effect of flowrate, SF6 concentration and water vapor concentration was significant. For SO2F2 selectivity, the mutual effect of SF6 concentration and water vapor concentration was significant. The optimum SF6 abatement was predicted from RSM as 14.64 g/kWh and 14.42% for EY and SO2F2 selectivity at flowrate of 200 ml/min, SF6 concentration of 3%, oxygen concentration of 0.83% and water vapor concentration of 1.89%.
Yuan Tian; Xiaoxing Zhang; Yufei Wang; Zhaolun Cui; Ju Tang. SF6 abatement in a packed bed plasma reactor: Role of zirconia size and optimization using RSM. Journal of Industrial and Engineering Chemistry 2020, 94, 205 -216.
AMA StyleYuan Tian, Xiaoxing Zhang, Yufei Wang, Zhaolun Cui, Ju Tang. SF6 abatement in a packed bed plasma reactor: Role of zirconia size and optimization using RSM. Journal of Industrial and Engineering Chemistry. 2020; 94 ():205-216.
Chicago/Turabian StyleYuan Tian; Xiaoxing Zhang; Yufei Wang; Zhaolun Cui; Ju Tang. 2020. "SF6 abatement in a packed bed plasma reactor: Role of zirconia size and optimization using RSM." Journal of Industrial and Engineering Chemistry 94, no. : 205-216.
Sulfur dioxide, carbon disulfide, and hydrogen sulfide are important decomposition products of insulating gas sulfur hexafluoride, and their types and contents are of great significance for the fault diagnosis of SF6 insulated equipment. In this paper, a method of combining ultraviolet absorption spectroscopy and least squares fitting is proposed for the quantitative calculation of sulfur dioxide, carbon disulfide, and hydrogen sulfide mixed gases. All three gases have absorption peaks in the ultraviolet band and they overlap with each other which makes it hard to determinate the concentrations of the three gases directly. During the experiment, we found that high concentrations of sulfur dioxide and carbon disulfide interfered with the hydrogen sulfide calculation and the magnitude of this interference was positively correlated with these two gas concentrations. Therefore, we found a modified equation for the correction of hydrogen sulfide. Combined with this equation, accurate quantitative detection of three gases can be achieved. The detection ranges are 0.5–10 parts per million for sulfur dioxide and hydrogen sulfide, and 10–300 parts per billion for carbon disulfide. This paper provides a simple and efficient detection method, which is convenient for integration into detection equipment and it provides a support method for the diagnosis of sulfur hexafluoride decomposition gases.
Zhaolun Cui; Xiaoxing Zhang; Dachang Chen; Yi Li; Yufei Wang; Yin Zhang; Hao Wang. Real-Time Measurement of SO2, H2S, and CS2 Mixed Gases Using Ultraviolet Spectroscopy and a Least Squares Algorithm. Applied Spectroscopy 2020, 75, 265 -273.
AMA StyleZhaolun Cui, Xiaoxing Zhang, Dachang Chen, Yi Li, Yufei Wang, Yin Zhang, Hao Wang. Real-Time Measurement of SO2, H2S, and CS2 Mixed Gases Using Ultraviolet Spectroscopy and a Least Squares Algorithm. Applied Spectroscopy. 2020; 75 (3):265-273.
Chicago/Turabian StyleZhaolun Cui; Xiaoxing Zhang; Dachang Chen; Yi Li; Yufei Wang; Yin Zhang; Hao Wang. 2020. "Real-Time Measurement of SO2, H2S, and CS2 Mixed Gases Using Ultraviolet Spectroscopy and a Least Squares Algorithm." Applied Spectroscopy 75, no. 3: 265-273.
Sulfur hexafluoride (SF6) is commonly used in gas insulated switchgears (GIS) as an insulating medium. When local overheating or partial discharge occurs in GIS, SF6 may be decomposed into various products including CO. In this paper, based on the photoacoustic (PA) effect of gas molecules, the infrared absorption line at 6380.318 cm−1 was chosen as the target line. An infrared laser with a center wavelength of 1567 nm was chosen as the light source, and a cantilever enhanced PA detector was used as the sensor; then, the experimental platform was constructed. The influence of the temperature and pressure on the infrared absorption coefficient of CO was analyzed. The relationship of the PA signal and the CO concentration under the background of SF6 and N2 were obtained. The results show that the temperature has a great influence on the CO absorption coefficient while the influence of pressure is negligible, and the temperature influential coefficient is about 5.0 × 10−6 cm−1/°C. The detection system has the highest signal-to-noise ratio when the frequency of the chopper is 40 Hz. Under N2 and SF6 background gases, there is a good linear relationship between CO concentration and pure PA signals. The minimum detection limit of CO in the background of N2 is 3.63 ppm, while it is 9.88 ppm in SF6. The different kinds of the background gases can influence the PA signals. The PA signals decrease with the increase of the temperature of the gas cell, and they also decrease with the increase of the pressure.
Hongtu Cheng; Xiaoxing Zhang; Chao Bian; Jun Cheng; Zhenwei Chen; Yin Zhang; Ju Tang; Song Xiao. Photoacoustic spectroscopy: Trace CO detection by using 10 mW near-infrared laser and cantilever beam. AIP Advances 2020, 10, 105122 .
AMA StyleHongtu Cheng, Xiaoxing Zhang, Chao Bian, Jun Cheng, Zhenwei Chen, Yin Zhang, Ju Tang, Song Xiao. Photoacoustic spectroscopy: Trace CO detection by using 10 mW near-infrared laser and cantilever beam. AIP Advances. 2020; 10 (10):105122.
Chicago/Turabian StyleHongtu Cheng; Xiaoxing Zhang; Chao Bian; Jun Cheng; Zhenwei Chen; Yin Zhang; Ju Tang; Song Xiao. 2020. "Photoacoustic spectroscopy: Trace CO detection by using 10 mW near-infrared laser and cantilever beam." AIP Advances 10, no. 10: 105122.
C4F7N has excellent insulation performance. By mixed with CO2, it is the most potential alternative gas to most greenhouse effect gas insulating medium SF6 that widely used in gas insulated high voltage electrical equipment. It is necessary to explore its insulation stability under different electrical fields before application. In this paper, the influence of electric field on C4F7N/CO2 mixture with different gas pressure and mixing ratio are tested, analyzed and compared with SF6 by experiment and calculation. It was found that the electrode roughness sensitivity of C4F7N/CO2 gas mixture is much higher than that of SF6 and CO2, which is easily to emerge partial discharge under non-uniform electric field. The insulation performance of C4F7N/CO2 gas mixture is extremely susceptible to internal interface roughness of electrical equipment, and optimization of equipment internal structure to avoid uneven electric fields is needed.
Song Xiao; Bing Gao; Xuanpei Pang; Xiaoxing Zhang; Yi Li; Shuangshuang Tian; Ju Tang; Yi Luo. The sensitivity of C4F7N to electric field and its influence to environment-friendly insulating gas mixture C4F7N/CO2. Journal of Physics D: Applied Physics 2020, 54, 055501 .
AMA StyleSong Xiao, Bing Gao, Xuanpei Pang, Xiaoxing Zhang, Yi Li, Shuangshuang Tian, Ju Tang, Yi Luo. The sensitivity of C4F7N to electric field and its influence to environment-friendly insulating gas mixture C4F7N/CO2. Journal of Physics D: Applied Physics. 2020; 54 (5):055501.
Chicago/Turabian StyleSong Xiao; Bing Gao; Xuanpei Pang; Xiaoxing Zhang; Yi Li; Shuangshuang Tian; Ju Tang; Yi Luo. 2020. "The sensitivity of C4F7N to electric field and its influence to environment-friendly insulating gas mixture C4F7N/CO2." Journal of Physics D: Applied Physics 54, no. 5: 055501.
SF6, as an outstanding insulation medium, is widely used in the high-voltage insulation devices, guaranteeing the safe operation of the power system. Nevertheless, the inevitable partial discharge in a long-running device causes the decomposition of SF6 and deteriorates its insulation performance. In this work, DFT calculations were performed to study the adsorbing and sensing properties of ZnO-modified C3N (ZnO-C3N) nanosheet towards SF6 decomposed products, in order to propose a novel nano-candidate for evaluating the operation status of SF6 insulation devises. We first investigated the structure of ZnO-C3N monolayer and then simulated its adsorption behaviour upon four typical SF6 decomposed species, namely H2S, SO2, SOF2, and SO2F2. It is found that the ZnO-C3N monolayer can exhibit desirable reactivity and sensitivity on SO2, SOF2, and SO2F2, leading to the intense deformation of gas molecules and large adsorption energies. These consequences allow the potential application of gas adsorbent based on ZnO-C3N monolayer for removing impurity gases from SF6 insulation equipment. According to the analysis, it is supposed that ZnO-C3N monolayer is qualified to be used in maintaining insulation strength and ensuring the safe operation of power system.
Peng Wu; Xiaoxing Zhang; Dachang Chen; Ju Tang. Adsorption of SF6 Decomposed Products on ZnO-Modified C3N: A Theoretical Study. Nanoscale Research Letters 2020, 15, 1 -11.
AMA StylePeng Wu, Xiaoxing Zhang, Dachang Chen, Ju Tang. Adsorption of SF6 Decomposed Products on ZnO-Modified C3N: A Theoretical Study. Nanoscale Research Letters. 2020; 15 (1):1-11.
Chicago/Turabian StylePeng Wu; Xiaoxing Zhang; Dachang Chen; Ju Tang. 2020. "Adsorption of SF6 Decomposed Products on ZnO-Modified C3N: A Theoretical Study." Nanoscale Research Letters 15, no. 1: 1-11.
Double transition metal catalysts (DACs) can provide distinguished activity and low overpotential for CO2 reduction to C2 products.
Dachang Chen; Zhi Wen Chen; Zhuole Lu; Ju Tang; Xiaoxing Zhang; Chandra Veer Singh. Computational screening of homo and hetero transition metal dimer catalysts for reduction of CO2 to C2 products with high activity and low limiting potential. Journal of Materials Chemistry A 2020, 8, 21241 -21254.
AMA StyleDachang Chen, Zhi Wen Chen, Zhuole Lu, Ju Tang, Xiaoxing Zhang, Chandra Veer Singh. Computational screening of homo and hetero transition metal dimer catalysts for reduction of CO2 to C2 products with high activity and low limiting potential. Journal of Materials Chemistry A. 2020; 8 (40):21241-21254.
Chicago/Turabian StyleDachang Chen; Zhi Wen Chen; Zhuole Lu; Ju Tang; Xiaoxing Zhang; Chandra Veer Singh. 2020. "Computational screening of homo and hetero transition metal dimer catalysts for reduction of CO2 to C2 products with high activity and low limiting potential." Journal of Materials Chemistry A 8, no. 40: 21241-21254.
Nanofibers with good softness and high surface specific area are excellent choices for wearable triboelectric nanogenerator (TENG), despite that the deformability and durability remain challenging in seamless integration with daily textiles/clothes. Herein, we propose a physical interlocking strategy to realize a self-interlocked stretchable, breathable and waterproof nanofibers-membrane by simultaneous electrospinning of poly (vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) and electrospraying of styrene-ethylene-butylene-styrene (SEBS). The electrosprayed SEBS microspheres serve as the elastic binders and hydrophobic modifiers for enhancing stretchability and waterproofness of the electrospun PVDF-HFP fibers network. By means of a printable electrode consisted of liquid metal (gallium indium tin particles) and silver flakes, a stretchable nanofibers-based TENG (SNF-TENG) with high triboelectric output (85 V, 219.66 mW m−2) and electrical durability was demonstrated, capable of harvesting energy from human motions and flowing water, powering 200 commercial LEDs and an electronic watch. The stretchable nanofibers membrane shows favorable mechanical compliance, which can be facilely integrated onto stretchable textile to fabricate textile-TENG, promising for comfortable wearable applications for power sources, smart raincoat, self-powered e-skin and tactile interactive interfaces.
Yi Li; Jiaqing Xiong; Jian Lv; Jian Chen; Dace Gao; Xiaoxing Zhang; Pooi See Lee. Mechanically interlocked stretchable nanofibers for multifunctional wearable triboelectric nanogenerator. Nano Energy 2020, 78, 105358 .
AMA StyleYi Li, Jiaqing Xiong, Jian Lv, Jian Chen, Dace Gao, Xiaoxing Zhang, Pooi See Lee. Mechanically interlocked stretchable nanofibers for multifunctional wearable triboelectric nanogenerator. Nano Energy. 2020; 78 ():105358.
Chicago/Turabian StyleYi Li; Jiaqing Xiong; Jian Lv; Jian Chen; Dace Gao; Xiaoxing Zhang; Pooi See Lee. 2020. "Mechanically interlocked stretchable nanofibers for multifunctional wearable triboelectric nanogenerator." Nano Energy 78, no. : 105358.
Shuangshuang Tian; Xiaoxing Zhang; Yann Cressault; Juntai Hu; Bo Wang; Song Xiao; Yi Li; Narjisse Kabbaj. Erratum: “Research status of replacement gases for SF6 in power industry” [AIP Adv. 10, 050702 (2020)]. AIP Advances 2020, 10, 099906 .
AMA StyleShuangshuang Tian, Xiaoxing Zhang, Yann Cressault, Juntai Hu, Bo Wang, Song Xiao, Yi Li, Narjisse Kabbaj. Erratum: “Research status of replacement gases for SF6 in power industry” [AIP Adv. 10, 050702 (2020)]. AIP Advances. 2020; 10 (9):099906.
Chicago/Turabian StyleShuangshuang Tian; Xiaoxing Zhang; Yann Cressault; Juntai Hu; Bo Wang; Song Xiao; Yi Li; Narjisse Kabbaj. 2020. "Erratum: “Research status of replacement gases for SF6 in power industry” [AIP Adv. 10, 050702 (2020)]." AIP Advances 10, no. 9: 099906.
TM–N4 embedded b-PC can be a promising bifunctional catalyst for the ORR/OER.
Dachang Chen; Zhi Wen Chen; Zhuole Lu; Xiaoxing Zhang; Ju Tang; Chandra Veer Singh. Transition metal–N4 embedded black phosphorus carbide as a high-performance bifunctional electrocatalyst for ORR/OER. Nanoscale 2020, 12, 1 .
AMA StyleDachang Chen, Zhi Wen Chen, Zhuole Lu, Xiaoxing Zhang, Ju Tang, Chandra Veer Singh. Transition metal–N4 embedded black phosphorus carbide as a high-performance bifunctional electrocatalyst for ORR/OER. Nanoscale. 2020; 12 (36):1.
Chicago/Turabian StyleDachang Chen; Zhi Wen Chen; Zhuole Lu; Xiaoxing Zhang; Ju Tang; Chandra Veer Singh. 2020. "Transition metal–N4 embedded black phosphorus carbide as a high-performance bifunctional electrocatalyst for ORR/OER." Nanoscale 12, no. 36: 1.
ZnO monolayers with desirable n-type semiconducting properties are full of potential for sensing applications. In this work, we investigate using first-principles theory the adsorption and sensing behaviors of Pd-doped ZnO (Pd-ZnO) monolayers with two typical dissolved gases, namely, H2 and C2H2, to explore their sensing use for dissolved gas analysis in transformer oil. For Pd doping on the pristine ZnO monolayer, the TO site is identified as the most stable configuration with an Eb of −1.44 eV. For the adsorption of H2 and C2H2, chemisorption is determined given the large adsorption energy (Ead) and formation of new bonds. Analyses of the charge density difference and density of state provide evidence of the strong binding force of Pd–H and Pd–C bonds, while band structure analysis provides the sensing mechanism of the Pd-ZnO monolayer as a resistance-type sensor for H2 and C2H2 detection with high electrical responses. Also, analysis of the work function (WF) provides the possibility of selective detection of H2 and C2H2 using a Pd-ZnO monolayer-based field-effect transistor sensor given the opposite changing trend of the WF after their adsorption. Our work may broaden the application of ZnO-based gas sensors for application in the field of electrical engineering.
Qian Zhou; Guozhi Zhang; Shuangshuang Tian; Xiaoxing Zhang. First-Principles Insight into Pd-Doped ZnO Monolayers as a Promising Scavenger for Dissolved Gas Analysis in Transformer Oil. ACS Omega 2020, 5, 17801 -17807.
AMA StyleQian Zhou, Guozhi Zhang, Shuangshuang Tian, Xiaoxing Zhang. First-Principles Insight into Pd-Doped ZnO Monolayers as a Promising Scavenger for Dissolved Gas Analysis in Transformer Oil. ACS Omega. 2020; 5 (28):17801-17807.
Chicago/Turabian StyleQian Zhou; Guozhi Zhang; Shuangshuang Tian; Xiaoxing Zhang. 2020. "First-Principles Insight into Pd-Doped ZnO Monolayers as a Promising Scavenger for Dissolved Gas Analysis in Transformer Oil." ACS Omega 5, no. 28: 17801-17807.
Fluorinated nitrile (C4F7N) gas mixture has been introduced as the mostpromising candidate to replace sulfur hexafluoride using in gas-insulatedequipment. In this study, the authors explored the influence of oxygen on thedielectric and decomposition properties of C4F7N–CO2–O2 gas mixture. Theauthors found that the dielectric strength of the C4F7N–CO2–O2 gas mixture with 2,4, 6, 8 and 10% O2 was increased by 4.85%, 6.49%, 7.70%, 3.21% and2.74% compared with C4F7N–CO2. The addition of2–6% O2 to the C4F7N–CO2 gas mixturecould effectively reduce the content of most of the decomposition by-productssuch as CF4, CO, C2F6,C3F6, C3F8, CF3CN,C2F5CN, (CN)2. While high content of oxygen(>6%) results in higher decomposition of C4F7N, whichhas a negative effect on the stability of C4F7N gasmixture. Generally, it is recommended to add 2–6% O2 in the C4F7N–CO2 gas mixture to improve itsinsulation properties as well as inhibit the decomposition of C4F7N in the discharge for medium-voltage engineeringapplication.
Yi Li; Xiaoxing Zhang; Fanchao Ye; Dachang Chen; Shuangshuang Tian; Zhaolun Cui. Influence regularity of O 2 on dielectric and decomposition properties of C 4 F 7 N–CO 2 –O 2 gas mixture for medium‐voltage equipment. High Voltage 2020, 5, 256 -263.
AMA StyleYi Li, Xiaoxing Zhang, Fanchao Ye, Dachang Chen, Shuangshuang Tian, Zhaolun Cui. Influence regularity of O 2 on dielectric and decomposition properties of C 4 F 7 N–CO 2 –O 2 gas mixture for medium‐voltage equipment. High Voltage. 2020; 5 (3):256-263.
Chicago/Turabian StyleYi Li; Xiaoxing Zhang; Fanchao Ye; Dachang Chen; Shuangshuang Tian; Zhaolun Cui. 2020. "Influence regularity of O 2 on dielectric and decomposition properties of C 4 F 7 N–CO 2 –O 2 gas mixture for medium‐voltage equipment." High Voltage 5, no. 3: 256-263.