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Sandwich-like NiO/rGO nanoarchitectures for 4 V solid-state asymmetric-supercapacitors with high energy density
Liu, Ao; Zhang, Haitao; Wang, Gao; Zhang, Jiahe; Zhang, Suojiang
2018-09-01
Source PublicationELECTROCHIMICA ACTA
ISSN0013-4686
Volume283Pages:1401-1410
AbstractHierarchical NiO/reduced graphene oxide (rGO) nanohybrids with tunable microstructures were fabricated via the thermal decomposition of Ni(OH)(2)/rGO formed by the electrostatic attraction between exfoliated Ni(OH)(2) and GO nanosheets. Characterization study revealed that the size of intercalated NiO nanocrystals could be tuned from 2 nm to 10 nm, and the specific surface area of optimized nanohybrids reached to 255 m(2)/g. Ionogel polymer electrolyte was prepared by entrapping ionic liquid (EMImBF(4)) and lithium salt (LiTFSI) into copolymer (PVdF-HFP). Effect of NiO particle size on the electrochemical performances was evaluated systemically. Asymmetric supercapacitors with as-prepared nanohybrids as anode and commercial activated carbon as cathode were assembled. Aqueous 6 M KOH solution, organic LiPF(6)solution and ionogel polymer were utilized as electrolytes to check their compatibility with nanohybrids. Our study shows that supercapacitors exhibit energy densities of 31.6 Wh/kg, 49 Wh/kg and 146 Wh/kg, respectively, with the above mentioned electrolytes. These results clearly demonstrate that high performance can be actualized by the subtle combination of hybridized electrodes with high voltage formulated ionogel polymer electrolytes. (C) 2018 Elsevier Ltd. All rights reserved.
KeywordNiO/rGO nanoarchitecture Ionic liquid Ionogel polymer electrolyte Solid-state supercapacitors
DOI10.1016/j.electacta.2018.07.099
Language英语
WOS KeywordNEUTRAL AQUEOUS-ELECTROLYTE ; HYBRID SUPERCAPACITORS ; ACTIVATED CARBON ; LITHIUM STORAGE ; ION CAPACITORS ; ELECTROCHEMICAL SUPERCAPACITORS ; POLYMER ELECTROLYTES ; CYCLE LIFE ; IN-SITU ; PERFORMANCE
Funding ProjectNational Key R&D Program of China[2016YFB0100303] ; International Cooperation and Exchange of the National Natural Science Foundation of China[51561145020] ; CAS/SAFEA International Partnership Program for Creative Research Teams[20140491518]
WOS Research AreaElectrochemistry
WOS SubjectElectrochemistry
Funding OrganizationNational Key R&D Program of China ; International Cooperation and Exchange of the National Natural Science Foundation of China ; CAS/SAFEA International Partnership Program for Creative Research Teams
WOS IDWOS:000441077900152
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/25711
Collection中国科学院过程工程研究所
Corresponding AuthorZhang, Haitao; Zhang, Suojiang
AffiliationChinese Acad Sci, Beijing Key Lab Ion Liquids Clean Proc, Key Lab Green Proc & Engn, State Key Lab Multiphase Complex Syst,Inst Proc E, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Liu, Ao,Zhang, Haitao,Wang, Gao,et al. Sandwich-like NiO/rGO nanoarchitectures for 4 V solid-state asymmetric-supercapacitors with high energy density[J]. ELECTROCHIMICA ACTA,2018,283:1401-1410.
APA Liu, Ao,Zhang, Haitao,Wang, Gao,Zhang, Jiahe,&Zhang, Suojiang.(2018).Sandwich-like NiO/rGO nanoarchitectures for 4 V solid-state asymmetric-supercapacitors with high energy density.ELECTROCHIMICA ACTA,283,1401-1410.
MLA Liu, Ao,et al."Sandwich-like NiO/rGO nanoarchitectures for 4 V solid-state asymmetric-supercapacitors with high energy density".ELECTROCHIMICA ACTA 283(2018):1401-1410.
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