Enhanced Gas Sensing Performance of rGO Wrapped Crystal Facet-Controlled Co3O4 Nanocomposite Heterostructures

doi:10.1021/acs.jpcc.2c00598

HFCAS OpenIR

	Enhanced Gas Sensing Performance of rGO Wrapped Crystal Facet-Controlled Co3O4 Nanocomposite Heterostructures
	Yu, Ting 1; Li, Xin1 ; Chen, Bin 2,3,4; Yang, Yanxing 5; Xu, Keng 1; Liu, Yuan 1; Gong, Wufei 1; Yuan, Cailei 1; Yang, Yong1
	2022-03-17
发表期刊	JOURNAL OF PHYSICAL CHEMISTRY C
ISSN	1932-7447
通讯作者	Yang, Yong(yyang@jxnu.edu.cn)
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.
DOI	10.1021/acs.jpcc.2c00598
关键词[WOS]	TOTAL-ENERGY CALCULATIONS ; NANOSHEETS ; NANOSTRUCTURES ; NANOCRYSTALS ; EFFICIENCY ; OXIDE
收录类别	SCI
语种	英语
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]
项目资助者	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
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
WOS类目	Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:000776247200017
出版者	AMER CHEMICAL SOC
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/128202
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.Jiangxi Normal Univ, Sch Phys Commun & Elect, Jiangxi Key Lab Photoelect & Telecommun, Jiangxi Key Lab Nanomat & Sensors, Nanchang 330022, Jiangxi, Peoples R China 2.Chinese Acad Sci, Inst Solid State Phys, HFIPS, Key Lab Mat Phys, Hefei 230031, Peoples R China 3.Chinese Acad Sci, Inst Solid State Phys, HFIPS, Anhui Key Lab Nanomat & Nanotechnol, Hefei 230031, Peoples R China 4.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China 5.New Jersey Inst Technol, Dept Phys, Newark, NJ 07102 USA
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).