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In situ growth of (NH4)(2)V10O25 center dot 8H(2)O urchin-like hierarchical arrays as superior electrodes for all-solid-state supercapacitors
Jiang, Yingchang1; Jiang, Le1; Wu, Zeyi1; Yang, Peiyu1; Zhang, Haitao2; Pan, Zhichang1; Hu, Linfeng1
2018-09-14
Source PublicationJOURNAL OF MATERIALS CHEMISTRY A
ISSN2050-7488
Volume6Issue:34Pages:16308-16315
Abstract

Hierarchical nanostructures with highly exposed active surfaces for use in high-performance pseudocapacitors have attracted considerable attention. Herein, we developed a one-step method for the in situ growth of (NH4)(2)V10O258H(2)O urchin-like hierarchical structures on highly conductive nickel foam substrates for use as advanced electrodes for all-solid-state asymmetric supercapacitors. The in situ growth of (NH4)(2)V10O258H(2)O urchin-like hierarchical structures delivers a specific capacitance of 1530 F g(-1) at a current density of 1.5 A g(-1), and retains 95.1% of the initial capacitance after 10000 cycles, owing to the advantages of the urchin-like hierarchical structure such as more active sites for electrochemical reactions, as well as a shortened diffusion length for the charge carriers due to a binder-free effect, which exceeds that of most recently reported vanadates and polyvanadates. The as-assembled all-solid-state (NH4)(2)V10O258H(2)O@Ni//PVA/KOH//RGO@Ni device exhibits a comparable capacity of 92.2 F g(-1) at a current density of 0.4 A g(-1) and excellent cycling performance through 5000 cycles. Our study provides rational guidance toward the design of novel hierarchical nanostructures of polyvanadate for solid-state supercapacitors with superior electrochemical performances in long-term cycling stability and high energy density.

DOI10.1039/c8ta05706k
Language英语
WOS KeywordHigh-performance Supercapacitors ; Lithium-ion Intercalation ; Asymmetric Supercapacitors ; High-capacity ; Carbon ; Nanosheets ; Oxide ; Batteries ; Graphene ; Composites
Funding ProjectNational Key Research and Development Program of China[2016YFB0100303] ; National Natural Science Foundation of China[51701042] ; Shanghai Rising-Star Program[16QA1400700]
WOS Research AreaChemistry ; Energy & Fuels ; Materials Science
WOS SubjectChemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
Funding OrganizationNational Key Research and Development Program of China ; National Natural Science Foundation of China ; Shanghai Rising-Star Program
WOS IDWOS:000444698200002
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/26015
Collection中国科学院过程工程研究所
Corresponding AuthorHu, Linfeng
Affiliation1.Fudan Univ, Dept Mat Sci, Shanghai 200433, Peoples R China
2.Chinese Acad Sci, Beijing Key Lab Ion Liquids Clean Proc, Inst Proc Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Jiang, Yingchang,Jiang, Le,Wu, Zeyi,et al. In situ growth of (NH4)(2)V10O25 center dot 8H(2)O urchin-like hierarchical arrays as superior electrodes for all-solid-state supercapacitors[J]. JOURNAL OF MATERIALS CHEMISTRY A,2018,6(34):16308-16315.
APA Jiang, Yingchang.,Jiang, Le.,Wu, Zeyi.,Yang, Peiyu.,Zhang, Haitao.,...&Hu, Linfeng.(2018).In situ growth of (NH4)(2)V10O25 center dot 8H(2)O urchin-like hierarchical arrays as superior electrodes for all-solid-state supercapacitors.JOURNAL OF MATERIALS CHEMISTRY A,6(34),16308-16315.
MLA Jiang, Yingchang,et al."In situ growth of (NH4)(2)V10O25 center dot 8H(2)O urchin-like hierarchical arrays as superior electrodes for all-solid-state supercapacitors".JOURNAL OF MATERIALS CHEMISTRY A 6.34(2018):16308-16315.
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