Mixed conduction properties of pristine bulk graphene oxide

doi:10.1016/j.carbon.2016.01.087

	Mixed conduction properties of pristine bulk graphene oxide
	Meng, Qing-Long 1; Liu, Heng-Chang1,2 ; Huang, Zhiwei 1; Kong, Shuang 1; Lu, Xiaowei 1; Tomkins, Patrick 1; Jiang, Peng 1; Bao, Xinhe1
	2016-05
发表期刊	CARBON (IF:10.5[JCR-2023],9.2[5-Year])
ISSN	0008-6223
卷号	101 页码:338-344
发表状态	已发表
DOI	10.1016/j.carbon.2016.01.087
摘要	We investigated the conduction properties of pristine bulk graphene oxide (GO) with different oxidation degrees. GO with a low oxidation degree shows the electron/hole conduction behavior. Interestingly, however, GO with high oxidation degree exhibits mixed conduction behaviors (electron/hole conduction and proton conduction), depending on the water content. For GO with a high oxidation degree, electron/hole conduction dominates the electrical transport in the water-lean state, while the proton conduction dominates the electrical transport in the water-rich state. Among different oxygen-containing functional groups, the epoxide groups, which could influence the band gap, interlayer distance and water intercalation process, play a critical role in the conduction properties of GO. In electrical transport process, epoxide groups act as conduction barriers for electron/hole conduction while serving as active sites for proton conduction. Both graphite and GOs exhibit a clear anisotropic behavior in electrical transport.. These observations will provide insightful information for the applications of GO in fuel cells, humidity sensors and supercapacitors. (C) 2016 Elsevier Ltd. All rights reserved.
收录类别	SCI ; EI
语种	英语
资助项目	National Natural Science Foundation of China[21273228] ; National Natural Science Foundation of China[51290272]
WOS研究方向	Chemistry ; Materials Science
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary
WOS记录号	WOS:000370816000043
出版者	PERGAMON-ELSEVIER SCIENCE LTD
EI入藏号	20160902038497
EI主题词	Composite films ; Electrons ; Energy gap ; Fuel cells ; Oxidation
EI分类号	Fuel Cells:702.2 ; Nanotechnology:761 ; Chemical Reactions:802.2 ; Chemical Products Generally:804
WOS关键词	ELECTRONIC STRUCTURE ; OPTICAL PROPERTIES ; FILMS ; SUPERCAPACITORS ; TRANSPARENT ; REDUCTION
原始文献类型	Article
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/1859
专题	物质科学与技术学院物质科学与技术学院_特聘教授组_包信和组物质科学与技术学院_硕士生
通讯作者	Jiang, Peng; Bao, Xinhe
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, 457 Zhongshan Rd, Dalian 116023, Peoples R China 2.ShanghaiTech Univ, Sch Phys Sci & Technol, 319 Yueyang Rd, Shanghai 200031, Peoples R China
推荐引用方式 GB/T 7714	Meng, Qing-Long,Liu, Heng-Chang,Huang, Zhiwei,et al. Mixed conduction properties of pristine bulk graphene oxide[J]. CARBON,2016,101:338-344.
APA	Meng, Qing-Long.,Liu, Heng-Chang.,Huang, Zhiwei.,Kong, Shuang.,Lu, Xiaowei.,...&Bao, Xinhe.(2016).Mixed conduction properties of pristine bulk graphene oxide.CARBON,101,338-344.
MLA	Meng, Qing-Long,et al."Mixed conduction properties of pristine bulk graphene oxide".CARBON 101(2016):338-344.