Theoretical Study of SOF<sub>2</sub> Adsorption on Pd/Pt-Ni(111) Bimetallic Surfaces
Partial discharge has become a serious threat to the stable operation of gas-insulated switchgears. SOF<sub>2</sub> is a characteristic decomposition component of SF<sub>6</sub> decomposition components under partial discharge, which further deteriorate the severity of partia...
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MDPI AG
2019-07-01
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| Online Access: | https://www.mdpi.com/2076-3417/9/14/2916 |
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| author | Shiming Gan Yingang Gui Xiaoyan Bao Dong Chen |
| author_facet | Shiming Gan Yingang Gui Xiaoyan Bao Dong Chen |
| author_sort | Shiming Gan |
| collection | DOAJ |
| description | Partial discharge has become a serious threat to the stable operation of gas-insulated switchgears. SOF<sub>2</sub> is a characteristic decomposition component of SF<sub>6</sub> decomposition components under partial discharge, which further deteriorate the severity of partial discharge. In order to find an excellent adsorbent for SOF<sub>2</sub>, Pd/Pt-Ni(111) composite surface is raised as an adsorbent to investigate its adsorption ability of the SOF<sub>2</sub> molecule. The results of the study show that Pd or Pt composite layer on Ni(111) atoms can significantly enhance the adsorption capacity, the adsorption ability to SOF<sub>2</sub> is in the sequence of Pt-Ni(111) > Pd-Ni(111) > Ni(111) > Ni-Pd-Ni(111) > Ni-Pt-Ni(111). However, the adsorption of SOF<sub>2</sub> on Pt-Ni(111) and Pd-Ni(111) surfaces is strong chemisorption, which is an irreversible adsorption process. On the contrary, Ni-Pd-Ni(111) and Ni-Pt-Ni(111) show moderate physisorption of SOF<sub>2</sub>. In addition, the density of electronic states, and electron density difference are further calculated to analyze the adsorption mechanism of SOF<sub>2</sub>. This research provides important theoretical support for developing an ideal SOF<sub>2</sub> adsorbent. |
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| language | English |
| last_indexed | 2024-04-12T21:36:19Z |
| publishDate | 2019-07-01 |
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| spelling | doaj.art-0519425a02ca419aa80dab734ba3619c2022-12-22T03:15:53ZengMDPI AGApplied Sciences2076-34172019-07-01914291610.3390/app9142916app9142916Theoretical Study of SOF<sub>2</sub> Adsorption on Pd/Pt-Ni(111) Bimetallic SurfacesShiming Gan0Yingang Gui1Xiaoyan Bao2Dong Chen3College of Mechanical Engineering, Inner Mongolia University of Technology, Hohhot 010051, ChinaCollege of Engineering and Technology, Southwest University, Chongqing 400715, ChinaCollege of Mechanical Engineering, Inner Mongolia University of Technology, Hohhot 010051, ChinaGree Electric Appliances, INC. of Zhuhai, Zhuhai 519000, ChinaPartial discharge has become a serious threat to the stable operation of gas-insulated switchgears. SOF<sub>2</sub> is a characteristic decomposition component of SF<sub>6</sub> decomposition components under partial discharge, which further deteriorate the severity of partial discharge. In order to find an excellent adsorbent for SOF<sub>2</sub>, Pd/Pt-Ni(111) composite surface is raised as an adsorbent to investigate its adsorption ability of the SOF<sub>2</sub> molecule. The results of the study show that Pd or Pt composite layer on Ni(111) atoms can significantly enhance the adsorption capacity, the adsorption ability to SOF<sub>2</sub> is in the sequence of Pt-Ni(111) > Pd-Ni(111) > Ni(111) > Ni-Pd-Ni(111) > Ni-Pt-Ni(111). However, the adsorption of SOF<sub>2</sub> on Pt-Ni(111) and Pd-Ni(111) surfaces is strong chemisorption, which is an irreversible adsorption process. On the contrary, Ni-Pd-Ni(111) and Ni-Pt-Ni(111) show moderate physisorption of SOF<sub>2</sub>. In addition, the density of electronic states, and electron density difference are further calculated to analyze the adsorption mechanism of SOF<sub>2</sub>. This research provides important theoretical support for developing an ideal SOF<sub>2</sub> adsorbent.https://www.mdpi.com/2076-3417/9/14/2916SF<sub>6</sub> decomposition componentsSOF<sub>2</sub>DFT calculationsPd/Pt-Ni(111)adsorption mechanism |
| spellingShingle | Shiming Gan Yingang Gui Xiaoyan Bao Dong Chen Theoretical Study of SOF<sub>2</sub> Adsorption on Pd/Pt-Ni(111) Bimetallic Surfaces Applied Sciences SF<sub>6</sub> decomposition components SOF<sub>2</sub> DFT calculations Pd/Pt-Ni(111) adsorption mechanism |
| title | Theoretical Study of SOF<sub>2</sub> Adsorption on Pd/Pt-Ni(111) Bimetallic Surfaces |
| title_full | Theoretical Study of SOF<sub>2</sub> Adsorption on Pd/Pt-Ni(111) Bimetallic Surfaces |
| title_fullStr | Theoretical Study of SOF<sub>2</sub> Adsorption on Pd/Pt-Ni(111) Bimetallic Surfaces |
| title_full_unstemmed | Theoretical Study of SOF<sub>2</sub> Adsorption on Pd/Pt-Ni(111) Bimetallic Surfaces |
| title_short | Theoretical Study of SOF<sub>2</sub> Adsorption on Pd/Pt-Ni(111) Bimetallic Surfaces |
| title_sort | theoretical study of sof sub 2 sub adsorption on pd pt ni 111 bimetallic surfaces |
| topic | SF<sub>6</sub> decomposition components SOF<sub>2</sub> DFT calculations Pd/Pt-Ni(111) adsorption mechanism |
| url | https://www.mdpi.com/2076-3417/9/14/2916 |
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