Yishan Jiang

Prof. Yishan Jiang

Navy Submarine Academy
avatar
Co-authors
avatar
Following
avatar
Followers

Research Focus & Metrics

Explore full metrics on Scilit

Academic Career Length

9Years (2018-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
16 April 2024 in Catalysts
Verified
Journal Article
Open access
PDF file
Guojun MaGuojun Ma
Guojun Ma
JGJian Guan
Jian Guan
QZQiuyi Zhu
Qiuyi Zhu
YJYishan Jiang
Yishan Jiang
NHNing Han
Ning Han
YCYunfa Chen
Yunfa Chen
The threat of ozone in indoor spaces and other enclosed environments is receiving increasing attention. Among numerous ozone catalytic decomposition technologies, copper catalytic material has a superior performance and relatively low cost, making it one of the ideal catalyst materials. This review presents the recent Cu catalyst studies on ozone decomposition, particularly morphological design, the construction of heterostructures, and monolithic catalyst design used to improve their performance. Moreover, this review proposes further improvement directions based on Cu materials’ inherent limitations and practical needs. On this basis, in the foreseeable future, Cu materials will play a greater role.
6 May 2021 in Catalysts
Verified
Journal Article
Open access
PDF file
YJYishan Jiang
Yishan Jiang
JCJvna Chen
Jvna Chen
XZXin Zhao
Xin Zhao
Guojun MaGuojun Ma
Guojun Ma
At present, it is urgent to synthesize highly active ozone decomposition catalysts to cope with the ever-increasing ozone concentration in the atmosphere. In this study, a highly porous Cu2O catalyst was prepared by using combined surfactants of triblock copolymer P123 and n-butanol through a simple solution reduction method by ascorbic acid. Transmittance electron microscopy, X-ray diffraction, and N2 adsorption–desorption characterizations verify the highly porous structure with a relatively high surface area of 79.5 m2·g−1 and a small crystallite size of 2.7 nm. The highly porous Cu2O shows 90% ozone conversion activity in harsh conditions, such as a high space velocity of 980,000 cm3·g−1·h−1, or a high relative humidity of 90% etc., which is not only attributable to the high surface area but also to the high concentration of surface oxygen vacancy. The results show the promising prospect of the easily synthesized, highly porous Cu2O for effective ozone decomposition applications.
17 August 2018 in Sensors
Verified
Journal Article
Open access
PDF file
JLJianghua Luo
Jianghua Luo
YJYishan Jiang
Yishan Jiang
FXFeng Xiao
Feng Xiao
XZXin Zhao
Xin Zhao
ZXZheng Xie
Zheng Xie
Nowadays, despite the easy fabrication and low cost of metal oxide gas sensors, it is still challenging for them to detect gases at low concentrations. In this study, resistance-matched p-type Cu2O and n-type Ga-doped ZnO, as well as p-type CdO/LaFeO3 and n-type CdO/Sn-doped ZnO sensors were prepared and integrated into p + n sensor arrays to enhance their gas-sensing performance. The materials were characterized by scanning electron microscopy, transmittance electron microscopy, and X-ray diffractometry, and gas-sensing properties were measured using ethanol and acetone as probes. The results showed that compared with individual gas sensors, the response of the sensor array was greatly enhanced and similar to the gas response product of the p- and n-type gas sensors. Specifically, the highly sensitive CdO/LaFeO3 and CdO/Sn-ZnO sensor array had a high response of 21 to 1 ppm ethanol and 14 to 1 ppm acetone, with detection limits of <0.1 ppm. The results show the effect of sensor array integration by matching the two sensor resistances, facilitating the detection of gas at a low concentration.
15 July 2022 in Frontiers in Materials
Verified
Journal Article
Open access
QZQichao Zhang
Qichao Zhang
YJYishan Jiang
Yishan Jiang
XZXin Zhao
Xin Zhao
JCJuna Chen
Juna Chen
Da-Hai XiaDa-Hai Xia
Da-Hai Xia
JDJizhou Duan
Jizhou Duan
After a nuclear waste container buried 500–1,000 m underground, it gradually experiences the dual effects of groundwater infiltration and the decay heat of radioactive nuclear waste. The decay and heat release of nuclear waste will also result in temperature stress. At the same time, the groundwater will gradually saturate the buffer/backfill materials which will produce expansion stress, thus forming a typical thermal–water–stress multi-coupling environment in the geological disposal, forming the environment where the corrosion could happen. In comparison, the information obtained through laboratories, field tests, and natural simulations are limited. However, numerical simulation is very important to predict the changes of a near-field environment. On one hand, the numerical simulation can verify the corresponding experimental data in the early stages; on the other hand, it can also predict the long-term corrosion environment change. This article mainly summarizes the large-scale evolution of a typical corrosion environment obtained by numerical simulation under different deep geological conditions in various countries, focusing on the effects of temperature, saturation, oxygen content, and radiation, which provide a reference for the research on the evolution of important corrosion environments on the surface of a nuclear waste container.
23 November 2023 in Frontiers in Microbiology
Verified
Journal Article
Open access
QZQichao Zhang
Qichao Zhang
YJYishan Jiang
Yishan Jiang
XZXin Zhao
Xin Zhao
JDJizhou Duan
Jizhou Duan
LCLuning Chen
Luning Chen
YXYing Xu
Ying Xu
A large amount of nuclear waste produced in the process of nuclear energy utilization has always been a key problem to be solved urgently for nuclear safety. At present, “deep geological disposal” is a feasible method and generally accepted by many countries. The oxygen content in the near field environment of the waste container will decrease to anaerobic conditions, and hydrogen will permeation into the internal materials of container for a long time. Hydrogen evolution corrosion may cause a risk of hydrogen embrittlement. The harm of hydrogen embrittlement in metal container is far more severe than predictable uniform corrosion. It is a research hotspot that the microorganisms impact on the corrosion behavior of container materials in the deep geological environment. Microbial corrosion in deep geological environments can be divided into two types: aerobic microbial corrosion and anaerobic microbial corrosion. There is a type of hydrogen consuming microorganism in the natural environment that uses the oxidation of hydrogen as the energy for its life activities. This provides a new approach for us to study reducing the hydrogen embrittlement sensitivity of nuclear waste container materials.
2 August 2018 in IOP Conference Series: Materials Science and Engineering
Verified
Conference Paper
Open access
PDF file
JLJianghua Luo
Jianghua Luo
XZXin Zhao
Xin Zhao
YJYishan Jiang
Yishan Jiang
Geometric Form Factor(GFF) or overlap function in transition range is an important factor of a lidar system, especially in a SO2 and NO2 DIAL system. An unstable overlap function will seriously affect measurements of gas concentration and degrade its retrieval accuracy in transition range. In technique of SO2 and NO2 DIAL, retrieval of gas concentration is directly related with ratio between two return signals of emitting laser beam. Construct stability of overlap between two laser beam and receiver can be estimated using the ratio between two return signals. In this paper data acquired from SO2/NO2 DIAL measurements was analyzed. Relative standard deviation of ratio between two return signals in transition range is less than 1%. It shows that Construct stability of overlap between two laser beam and receiver, and quality of laser beam are very good.