Details
| Original language | English |
|---|---|
| Article number | 115568 |
| Journal | Physica E: Low-Dimensional Systems and Nanostructures |
| Volume | 146 |
| Early online date | 11 Nov 2022 |
| Publication status | Published - Jan 2023 |
Abstract
In this paper, the DFT method is employed to analyze the sensing and adsorption performance intrinsic MoTe2 and Pt doped MoTe2 to the characteristic oil dissolved gases (C2H2, C2H4, CO, and H2). The value of binding energy demonstrates Pt atom prefer to be trapped at TMo site among TH, TMo, TTe, and TBr sites. Pt–MoTe2 depicts the excellent adsorption property to the four gases compared with MoTe2. Based on the change of band gap, the conductivity and sensitivity of Pt–MoTe2 decreases and increases after adsorption of four gases. The moderate recovery time reveals the higher gas-sensing and response of Pt–MoTe2 to C2H2 and C2H4 than to CO and H2. This paper provides theoretical guidance of potential application of a novel and high-performance gas sensor for online-monitoring the characteristic dissolved gases in transformer.
Keywords
- Adsorption property and sensitivity, Characteristic oil dissolved gases, DFT, Oil-immersed transformer, Pt-MoTe
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
- Physics and Astronomy(all)
- Condensed Matter Physics
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In: Physica E: Low-Dimensional Systems and Nanostructures, Vol. 146, 115568, 01.2023.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Adsorption and gas-sensing performances of C2H2, C2H4, CO, H2 in transformer oil on Pt-doped MoTe2 monolayer
T2 - A DFT study
AU - Jiang, Tianyan
AU - Zhang, Wentao
AU - Zhang, Tao
AU - Yuan, Haoxiang
AU - Bi, Maoqiang
AU - Zhou, Xin
N1 - Funding Information: This work is supported by the National Natural Science Foundation of China ( 52177129 ).
PY - 2023/1
Y1 - 2023/1
N2 - In this paper, the DFT method is employed to analyze the sensing and adsorption performance intrinsic MoTe2 and Pt doped MoTe2 to the characteristic oil dissolved gases (C2H2, C2H4, CO, and H2). The value of binding energy demonstrates Pt atom prefer to be trapped at TMo site among TH, TMo, TTe, and TBr sites. Pt–MoTe2 depicts the excellent adsorption property to the four gases compared with MoTe2. Based on the change of band gap, the conductivity and sensitivity of Pt–MoTe2 decreases and increases after adsorption of four gases. The moderate recovery time reveals the higher gas-sensing and response of Pt–MoTe2 to C2H2 and C2H4 than to CO and H2. This paper provides theoretical guidance of potential application of a novel and high-performance gas sensor for online-monitoring the characteristic dissolved gases in transformer.
AB - In this paper, the DFT method is employed to analyze the sensing and adsorption performance intrinsic MoTe2 and Pt doped MoTe2 to the characteristic oil dissolved gases (C2H2, C2H4, CO, and H2). The value of binding energy demonstrates Pt atom prefer to be trapped at TMo site among TH, TMo, TTe, and TBr sites. Pt–MoTe2 depicts the excellent adsorption property to the four gases compared with MoTe2. Based on the change of band gap, the conductivity and sensitivity of Pt–MoTe2 decreases and increases after adsorption of four gases. The moderate recovery time reveals the higher gas-sensing and response of Pt–MoTe2 to C2H2 and C2H4 than to CO and H2. This paper provides theoretical guidance of potential application of a novel and high-performance gas sensor for online-monitoring the characteristic dissolved gases in transformer.
KW - Adsorption property and sensitivity
KW - Characteristic oil dissolved gases
KW - DFT
KW - Oil-immersed transformer
KW - Pt-MoTe
UR - http://www.scopus.com/inward/record.url?scp=85145578028&partnerID=8YFLogxK
U2 - 10.1016/j.physe.2022.115568
DO - 10.1016/j.physe.2022.115568
M3 - Article
AN - SCOPUS:85145578028
VL - 146
JO - Physica E: Low-Dimensional Systems and Nanostructures
JF - Physica E: Low-Dimensional Systems and Nanostructures
SN - 1386-9477
M1 - 115568
ER -