Jiaying Yu, Xiu Zhou, Hao Cui, Lei Chen, Ying Wei, Tian Tian
ACS omega 2024 Feb 06To perform the dissolved gas analysis in transformer oil, in this work, we propose the Ni-dispersed PdS2 (Ni-PdS2) monolayer as a promising sensing material for three typical dissolved gases H2, CO, and C2H2. For the Ni-dispersing process, we find that Ni atoms can be chemically stably adsorbed on the PdS2 surface with a binding energy of -4.11 eV. For gas adsorption systems, it is found that the Ni-PdS2 monolayer allows the physisorption of H2 molecules and the chemisorption of CO and C2H2 molecules. Besides, the analysis of electronic properties of the Ni-PdS2/gas system reveals its potential as a resistance-type H2 or C2H2 sensor with sensing responses of -40.9 and 261.5%, separately, and the WF analysis indicates its low potential as a WF-based gas sensor for the three gases. These findings indicate the Ni-dispersed behavior on the PdS2 surface and the gas-sensing potential of the Ni-PdS2 monolayer, which we expect can facilitate more investigations about PdS2-based materials for applications in gas adsorptions and sensing in some other fields. © 2024 The Authors. Published by American Chemical Society.
Jiaying Yu, Xiu Zhou, Hao Cui, Lei Chen, Ying Wei, Tian Tian. Ni-Dispersed PdS2 Monolayer as a Potential Sensing Material for Dissolved Gas Analysis in Electrical Transformers: A First-Principles Study. ACS omega. 2024 Feb 06;9(5):5829-5837
PMID: 38343950
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