兰州大学机构库 >物理科学与技术学院
Effect of rGO Coating on Interconnected Co3O4 Nanosheets and Improved Supercapacitive Behavior of Co3O4/rGO/NF Architecture
Yao, Tinghui1; Guo, Xin1; Qin, Shengchun1; Xia, Fangyuan1; Li, Qun1; Li, Yali1; Chen, Qiang2; Li, JS(栗军帅)1; He, DY(贺德衍)1
2017-10
Source PublicationNano-Micro Letters   Impact Factor & Quartile
ISSN2311-6706
Volume9Issue:4
AbstractIn this study, the effect of reduced graphene oxide (rGO) on interconnected Co3O4 nanosheets and the improved supercapacitive behaviors is reported. By optimizing the experimental parameters, we achieved a specific capacitance of similar to 1016.4 F g(-1) for the Co3O4/rGO/NF (nickel foam) system at a current density of 1 A g(-1). However, the Co3O4/NF structure without rGO only delivers a specific capacitance of similar to 520.0 F g(-1) at the same current density. The stability test demonstrates that Co3O4/rGO/NF retains similar to 95.5% of the initial capacitance value even after 3000 charge-discharge cycles at a high current density of 7 A g(-1). Further investigation reveals that capacitance improvement for the Co3O4/rGO/NF structure is mainly because of a higher specific surface area (similar to 87.8 m(2) g(-1)) and a more optimal mesoporous size (4-15 nm) compared to the corresponding values of 67.1 m 2 g(-1) and 6-25 nm, respectively, for the Co3O4/NF structure. rGO and the thinner Co3O4 nanosheets benefit from the strain relaxation during the charge and discharge processes, improving the cycling stability of Co3O4/rGO/NF.
KeywordSupercapacitors rGO Co3O4 nanosheets Strain relaxation
Subject AreaScience & Technology - Other Topics ; Materials Science ; Physics
PublisherSPRINGER
DOI10.1007/s40820-017-0141-9
Publication PlaceHEIDELBERG
Indexed ByEI ; SCIE
Language英语
First Inst
Funding Project国家自然科学基金项目 ; 高等学校博士学科点专项科研基金 ; 中央高校基本科研业务费专项资金
Project NumberNational Natural Science Foundation of China [61376068, 11304132, 11304133, 11405144] ; Specialized Research Fund of the Doctoral Program of Higher Education [20120211120003, 20130211120009] ; Fundamental Research Funds for the Central Universities [lzujbky-2013-36, lzujbky-2014-30]
WOS IDWOS:000402882100002
Funding OrganizationNSFC ; MOE ; LZU
EI Accession Number20175204579842
SubtypeArticle
EI KeywordsCapacitance ; Current density ; Graphene ; Strain relaxation ; Supercapacitor
EI Classification NumberElectricity: Basic Concepts and Phenomena:701.1 ; Nanotechnology:761 ; Chemical Products Generally:804 ; Mechanics:931.1 ; Solid State Physics:933
IRIDWOS:000402882100002
Citation statistics
Cited Times:72[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/190281
Collection物理科学与技术学院
材料与能源学院
Corresponding AuthorLi, Junshuai
Affiliation
1.Key Laboratory of Special Function Materials and Structure Design of the Ministry of Education, Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, and School of Physical Science and Technology, Lanzhou University, 222 South Tianshui Road, Lanzhou; 730000, China
2.Institute of Electromagnetics and Acoustics, Department of Electronic Science, and Fujian Provincial Key Laboratory of Plasma and Magnetic Resonance, Xiamen University, Xiamen; 361005, China
First Author AffilicationSchool of Physical Science and Technology
Corresponding Author AffilicationSchool of Physical Science and Technology
Recommended Citation
GB/T 7714
Yao, Tinghui,Guo, Xin,Qin, Shengchun,et al. Effect of rGO Coating on Interconnected Co3O4 Nanosheets and Improved Supercapacitive Behavior of Co3O4/rGO/NF Architecture[J]. Nano-Micro Letters,2017,9(4).
APA Yao, Tinghui.,Guo, Xin.,Qin, Shengchun.,Xia, Fangyuan.,Li, Qun.,...&He, Deyan.(2017).Effect of rGO Coating on Interconnected Co3O4 Nanosheets and Improved Supercapacitive Behavior of Co3O4/rGO/NF Architecture.Nano-Micro Letters,9(4).
MLA Yao, Tinghui,et al."Effect of rGO Coating on Interconnected Co3O4 Nanosheets and Improved Supercapacitive Behavior of Co3O4/rGO/NF Architecture".Nano-Micro Letters 9.4(2017).
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