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Abstract：
In this paper, the compatibility between C4F7N and α-Al2O3 (0001) surface has been evaluated based on the density functional theory (DFT). The adsorption energy, total charge transfer, states analysis, and electron density difference were obtained to analyze the interaction behavior of C4F7N on α-Al2O3 (0001) surface. The results demonstrated a chemisorption between C4F7N and α-Al2O3 (0001) surface. Moreover, the pathway of C4F7N dissociated on α-Al2O3 (0001) surface after the adsorption was determined. However, the activation energy required for the dissociation is too large to achieve, which means that the dissociation of C4F7N on α-Al2O3 surface is difficult to occur. Additionally, the thermal compatibility between α-Al2O3 and C4F7N were verified by experiments, which shows a certain compatibility between C4F7N and α-Al2O3 (0001) under up to 170 . The results demonstrate that α-Al2O3-based materials can be used as insulators in C4F7N-filled electrical equipment. © 2020 Elsevier B.V.
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Applied Surface Science
ISSN： 0169-4332
Year： 2021
Volume： 536
6 . 7 0 7
JCR@2020
ESI Discipline： MATERIALS SCIENCE;
ESI HC Threshold：36
CAS Journal Grade：1
Cited Count：
WoS CC Cited Count： 1
SCOPUS Cited Count： 14
ESI Highly Cited Papers on the List： 0 Unfold All
WanFang Cited Count：
Chinese Cited Count：
30 Days PV： 7
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