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Selectively anchored vanadate host for self-boosting catalytic synthesis of ultra-fine vanadium nitride/nitrogen-doped hierarchical carbon hybrids as superior electrode materials
Yang, Hailun1,2,3; Ning, Pengge1,2; Cao, Hongbin1,2; Yuan, Menglei1,3; Feng, Jianpeng1; Yue, Jiaxin1,3; Liu, Zhenchao1,2; Xu, Gaojie1,2; Li, Yuping1,2
2020-02-01
Source PublicationELECTROCHIMICA ACTA
ISSN0013-4686
Volume332Pages:11
AbstractHierarchically nanostructured carbon hybrids with highly exposed active sites and specific surface area have been widely researched in high-performed electrochemical capacitors. Inspired from the synergistic effect of uniformly distributed active components and stable carbon substrate, combining with green solvent extraction process, we explored a facile strategy to prepare vanadium nitride quantum dots/nitrogen-doped hierarchical carbon nanocomposites (VNQD/NDHCs) from vanadium aqueous solution, which can provide large pseudocapacitance and excellent electrochemical stability. Vanadate is selective recovered from aqueous solution in form of vanadium-organic compounds (VAORCs) as precursor. Primary amines favor not only the selective metal-polymer coordination, but also the formation of crosslinked carbon matrix. Then, during chemical molecules vapor deposition (CMVD), the vanadate is in-situ nitrided along with the formation of hierarchical carbon. The prepared VNQD/NDHCs-800 exhibits exceptional capacitance (318.3 F g(-1) at 1 A g(-1)) and retains 89.7% of the initial capacities after 12000 cycles. SEM and TEM images confirm that a large amount of quantum dots are well embedded in a graphitic carbon matrix, which provides abundant electroactive sites and fast ion diffusion for capacitive storage. This work indicates that it is feasible to directly recovery valuable metals from aqueous solutions to prepare high-performance electrode materials. (C) 2019 Published by Elsevier Ltd.
KeywordMetal-organic compounds Solvent extraction Vanadium nitride Hierarchical structured carbon hybrids Supercapacitor
DOI10.1016/j.electacta.2019.135387
Language英语
WOS KeywordPOROUS CARBON ; GRAPHENE NANOCOMPOSITES ; TEMPERATURE SYNTHESIS ; TEMPLATE SYNTHESIS ; ANODE MATERIALS ; NITRIDE ; COMPOSITE ; EXTRACTION ; NANOSHEETS ; RECOVERY
Funding ProjectYouth Innovation Promotion Association, CAS[2016042] ; National Science Fund for Distinguished Young Scholars of China[51425405]
WOS Research AreaElectrochemistry
WOS SubjectElectrochemistry
Funding OrganizationYouth Innovation Promotion Association, CAS ; National Science Fund for Distinguished Young Scholars of China
WOS IDWOS:000506201800024
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/38522
Collection中国科学院过程工程研究所
Corresponding AuthorNing, Pengge
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Beijing Engn Res Ctr Proc Pollut Control, Div Environm Technol & Engn, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Yang, Hailun,Ning, Pengge,Cao, Hongbin,et al. Selectively anchored vanadate host for self-boosting catalytic synthesis of ultra-fine vanadium nitride/nitrogen-doped hierarchical carbon hybrids as superior electrode materials[J]. ELECTROCHIMICA ACTA,2020,332:11.
APA Yang, Hailun.,Ning, Pengge.,Cao, Hongbin.,Yuan, Menglei.,Feng, Jianpeng.,...&Li, Yuping.(2020).Selectively anchored vanadate host for self-boosting catalytic synthesis of ultra-fine vanadium nitride/nitrogen-doped hierarchical carbon hybrids as superior electrode materials.ELECTROCHIMICA ACTA,332,11.
MLA Yang, Hailun,et al."Selectively anchored vanadate host for self-boosting catalytic synthesis of ultra-fine vanadium nitride/nitrogen-doped hierarchical carbon hybrids as superior electrode materials".ELECTROCHIMICA ACTA 332(2020):11.
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