Enhanced Gas Sensing Performance of rGO Wrapped Crystal Facet-Controlled Co3O4 Nanocomposite Heterostructures
文献类型：期刊论文
| 作者 | Yu, Ting5; Li, Xin5 ; Chen, Bin2,3,4; Yang, Yanxing1; Xu, Keng5; Liu, Yuan5; Gong, Wufei5; Yuan, Cailei5; Yang, Yong5
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| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY C
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| 出版日期 | 2022-03-17 |
| 卷号 | 126 |
| ISSN号 | 1932-7447 |
| DOI | 10.1021/acs.jpcc.2c00598 |
| 通讯作者 | Yang, Yong(yyang@jxnu.edu.cn) |
| 英文摘要 | Crystal facet engineering and graphene modification are both effective means to improve the gas sensing performance of metal oxide semiconductors (MOSs) currently. However, research on the crystal facet effect and synergistic effect of graphene modification of p-type MOS sensors is relatively lacking. Here, p-type Co3O4 nanocrystals with controlled crystal facets ({112} and {100}) were in situ wrapped in the two-dimensional (2D) nanosheet network of graphene. It was found that bare {112} facets showed a significantly higher triethylamine sensing performance than {100} facets, implying a strong crystal facet effect. Interestingly, the triethylamine sensing performance of {112} facets was significantly improved after rGO modification, while the performance improvement of Co3O4 {100} was limited after rGO modification. Further study suggested that {112} facets contained more active Co3+ species and chemically adsorbed oxygen species than {100} facets, which promoted the adsorption of triethylamine and the subsequent sensing reaction. In addition, the strong electronic interaction between Co3O4 {112} crystal facets and rGO promoted efficient charge exchange through the heterogeneous interface. This work provides a new way to improve the gas sensing performance of Co3O4 through the synergistic effect of crystal facet engineering and graphene modification. |
| WOS关键词 | TOTAL-ENERGY CALCULATIONS ; NANOSHEETS ; NANOSTRUCTURES ; NANOCRYSTALS ; EFFICIENCY ; OXIDE |
| 资助项目 | Natural Science Foundation of China[51962009] ; Natural Science Foundation of China[61664005] ; Natural Science Foundation of China[62061020] ; Natural Science Foundation of China[51871115] ; Project of Academic and Technological Leaders in Jiangxi Province[20204BCJ23004] ; Project of Academic and Technological Leaders in Jiangxi Province[20212BCJ23018] ; Natural Science Foundation of Jiangxi Province of China[20192BAB206011] ; Natural Science Foundation of Jiangxi Province of China[20202BABL202021] ; Natural Science Foundation of Jiangxi Province of China[20202BAB212008] ; Hefei National Laboratory for Physical Sciences at the Microscale[KF2020109] ; Collaborative Innovation Program of Hefei Science Center, CAS[2020HSC-CIP013] |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000776247200017 |
| 出版者 | AMER CHEMICAL SOC |
| 资助机构 | Natural Science Foundation of China ; Project of Academic and Technological Leaders in Jiangxi Province ; Natural Science Foundation of Jiangxi Province of China ; Hefei National Laboratory for Physical Sciences at the Microscale ; Collaborative Innovation Program of Hefei Science Center, CAS |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/128201]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Yang, Yong |
| 作者单位 | 1.New Jersey Inst Technol, Dept Phys, Newark, NJ 07102 USA 2.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China 3.Chinese Acad Sci, Inst Solid State Phys, HFIPS, Anhui Key Lab Nanomat & Nanotechnol, Hefei 230031, Peoples R China 4.Chinese Acad Sci, Inst Solid State Phys, HFIPS, Key Lab Mat Phys, Hefei 230031, Peoples R China 5.Jiangxi Normal Univ, Sch Phys Commun & Elect, Jiangxi Key Lab Photoelect & Telecommun, Jiangxi Key Lab Nanomat & Sensors, Nanchang 330022, Jiangxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Ting,Li, Xin,Chen, Bin,et al. Enhanced Gas Sensing Performance of rGO Wrapped Crystal Facet-Controlled Co3O4 Nanocomposite Heterostructures[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2022,126. |
| APA | Yu, Ting.,Li, Xin.,Chen, Bin.,Yang, Yanxing.,Xu, Keng.,...&Yang, Yong.(2022).Enhanced Gas Sensing Performance of rGO Wrapped Crystal Facet-Controlled Co3O4 Nanocomposite Heterostructures.JOURNAL OF PHYSICAL CHEMISTRY C,126. |
| MLA | Yu, Ting,et al."Enhanced Gas Sensing Performance of rGO Wrapped Crystal Facet-Controlled Co3O4 Nanocomposite Heterostructures".JOURNAL OF PHYSICAL CHEMISTRY C 126(2022). |
入库方式： OAI收割
来源：合肥物质科学研究院
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