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Prof. Dr. Yingang Gui
College of Engineering and Technology, Southwest University, Chongqing 400715, China
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Representative Publications
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Journal Article
HWHuangli Wei
Huangli WeiYGYingang Gui
Yingang GuiJKJian Kang
Jian Kang
WWWeibo Wang
Weibo Wang
CTChao Tang
Chao TangIn this paper, a Ni-doped MoS2 monolayer (Ni-MoS2) has been proposed as a novel gas adsorbent to be used in SF6-insulated equipment. Based on the first-principles calculation, the adsorption properties of Ni-MoS2 to SO2 and H2S molecules, the main decomposition components of SF6 under a partial discharge (PD) condition have been studied. The adsorption energy, charge transfer, and structural parameters have been analyzed to find the most stable gas-adsorbed Ni-MoS2. Furthermore, the density of states (DOS), projected density of states (PDOS), and electron density difference were employed to explore the interaction mechanism between SO2, H2S, and the Ni-MoS2 surface. It is found that the H2S molecule and SO2 molecule interact with the Ni-MoS2 surface by strong adsorption energy. Therefore, we conclude that the interaction between these two kinds of gases and the Ni-MoS2 monolayer belongs to chemisorption, and the Ni-MoS2 monolayer might be a promising gas adsorbent for the fault recovery of SF6-insulated equipment. Additionally, we have to point out that all of the conclusions only considered the final adsorption energy, the barrier in the transition state has not been analyzed in this paper.
1 April 2022 in Applied Surface Science
Journal Article
10 August 2022 in Energy Conversion and Management
Journal Article
1 August 2020 in High Voltage
Journal Article
YGYingang Gui
Yingang GuiJSJinzhi Shi
Jinzhi Shi
PYPingan Yang
Pingan Yang
TLTao Li
Tao Li
CTChao Tang
Chao Tang
LXLingna Xu
Lingna Xu
In the long‐running of sulphur hexafluoride (SF 6 )‐insulated equipment, SF 6 inevitably decomposes to various decomposition products under electric discharge, including SOF 2 and SO 2 F 2 . In this work, single Pt modified molybdenum disulphide (Pt‐MoS 2 ) monolayer, and double Pt modified molybdenum disulphide (Pt 2 ‐MoS 2 ) monolayer are proposed to analyse its adsorption and sensing properties to SOF 2 and SO 2 F 2 with single and double gas molecules adsorption based on density functional theory. The adsorption energy, density of states, and molecular orbit theory are employed to analyse the adsorption and sensing mechanism. It turns out that the Pt‐MoS 2 and Pt 2 ‐MoS 2 present outstanding adsorption capacity to gas molecules. Specifically, double SOF 2 adsorption on Pt 2 ‐MoS 2 shows the best adsorption performance, and the conductivity of the adsorption system changes the most in the adsorption process. Overall, both Pt‐MoS 2 and Pt 2 ‐MoS 2 perform as an excellent gas sensor. This study provides a theoretical basis to develop Pt‐MoS 2 and Pt 2 ‐MoS 2 based materials for SOF 2 and SO 2 F 2 detection in SF 6 ‐insulated equipment.
1 March 2020 in Applied Surface Science
Journal Article
YGYingang Gui
Yingang GuiWLWenjun Li
Wenjun Li
XHXin He
Xin HeZDZhuyu Ding
Zhuyu Ding
CTChao Tang
Chao TangLXLingna Xu
Lingna Xu
15 February 2024 in ACS Sensors
Journal Article
SHShasha He
Shasha He
YGYingang Gui
Yingang GuiYWYunfeng Wang
Yunfeng Wang
LCLiang Cao
Liang CaoGHGaohui He
Gaohui He
CTChao Tang
Chao TangAbout Me
Dr. Yingang Gui currently serves as a
Professor at the College of Engineering and Technology, Southwest University,
Chongqing, China. He obtained a doctorate in electrical engineering from the
School of Electrical Engineering of Chongqing University in 2017 and jointly
trained a doctorate with the School of Electrical and Computer Engineering
(Sensors and Intelligent Systems Laboratory) at the Georgia Institute of
Technology in the United States (October 2015 to September 2016). In recent years,
he has presided over more than 10 scientific and technological projects such as
the National Natural Science Foundation of China, the Chongqing Natural Science
Foundation of China, the Fundamental Research Funds for Central Universities
Key Project, etc. Dr. Gui has published more than 60 SCI-indexed papers in
famous journals such as Nano Energy, Sensors and Actuators B, High Voltage, and
IEEE Sensors Journal, participated in the publication of 1 English monograph,
and applied for 7 national invention patents. He is also a senior member of the
China Electrotechnical Society and a member of the China Electrical Engineering
Society. His main research areas include micro-nano manufacturing and advanced
sensing technology, intelligent detection technology, electrical equipment
insulation online monitoring, and fault diagnosis and evaluation.