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[1]许玉斌,李渭娟,王大伟,等.基于第一性原理的SnO(2 101)表面对SF6分解气体气敏性能研究[J].高压电器,2019,55(05):10-16.[doi:DOI:10.13296/j.1001-1609.hva.2019.05.002]
 XU Yubin,LI Weijuan,WANG Dawei,et al.Research on the Gas?sensing Properties of SF6 Decomposition Gas on SnO(2 101)Surface Based on the First Principle[J].High Voltage Apparatus,2019,55(05):10-16.[doi:DOI:10.13296/j.1001-1609.hva.2019.05.002]
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基于第一性原理的SnO(2 101)表面对SF6分解气体气敏性能研究()
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《高压电器》[ISSN:1001-1609/CN:61-11271/TM]

卷:
第55卷
期数:
2019年05期
页码:
10-16
栏目:
2018 高电压与放电等离子体专题
出版日期:
2019-05-20

文章信息/Info

Title:
Research on the Gas?sensing Properties of SF6 Decomposition Gas on SnO(2 101)Surface Based on the First Principle
作者:
许玉斌1 李渭娟2 王大伟2 王小华2 杨爱军2 荣命哲2
(1. 国网长治供电公司,山西长治046011;2. 西安交通大学电力设备电气绝缘国家重点实验室,西安710049)
Author(s):
XU Yubin1LI Weijuan2WANG Dawei2WANG Xiaohua2YANG Aijun2RONG Mingzhe2
(1. State Grid Changzhi Power Supply Company,Shanxi Changzhi 046011,China;2. State Key Laboratory of Electrical Insulation and Power Equipment,Xi’an Jiaotong University,Xi’an 710049,China)
关键词:
SnO2(101)SF6分解气体第一性原理气体传感器
Keywords:
SnO2(101)SF6 decomposition gasfirst principlegas sensor
DOI:
DOI:10.13296/j.1001-1609.hva.2019.05.002
摘要:
通过检测SF6典型分解气体可以诊断出SF6气体绝缘设备早期绝缘故障。二氧化锡(SnO2)是应用广泛 的气敏材料,文中采用第一性原理计算并分析了SF6分解气体在SnO2(101)表面的吸附情况,研究SnO2(101) 表面对SF6分解气体的气敏性能。通过理论计算,获得了H2S、SF6、SO2、SOF2和SO2F2气体分子在SnO2(101)表 面吸附的吸附能、吸附构型、电荷转移、差分电荷密度、态密度、势能图与功函数等表征吸附特性的参量。分析 计算结果发现,SnO2(101)对H2S和SO2有很好的选择性和敏感性,有望成为检测SF6分解气体的传感器材料。
Abstract:
The early insulation failure of SF6 gas insulation equipment can be diagnosed by detecting the typical de? composition gas of SF6. Furthermore,SnO2 is a widely used gas sensitive material. Therefore,in this paper,the ad? sorption of SF6 decomposition gas on the surface of SnO2(101)is calculated and analyzed. The first?principle calcula? tion approach is proposed to calculate specific characteristic parameters,including: adsorption energy,adsorption configurations,the charge transfer,differential charge density,density of states,potentials and work function. Ac? cording to the analysis of the calculation results,SnO2(101)has good selectivity and sensitivity to H6S and SO2,show? ing that SnO2(101)has the potential to be a kind of gas sensor material for detecting the decomposition gas of SF6.

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备注/Memo

备注/Memo:
收稿日期:2018?11?26; 修回日期:2019?01?28 基金项目:国家电网科技项目(高压GIS设备电寿命评估理论与关键技术研究)。 Project Supported by the Science and Technology Project Funds Through State Grid Corporation of China(Research on the Theory and Key Technology of Electric Life Assessment of High Voltage GIS).许玉斌(1969—),?#26657;?#39640;级工程师,从事电力企业管理工作。
更新日期/Last Update: 2019-05-20
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