Selectively anchored vanadate host for self-boosting catalytic synthesis of ultra-fine vanadium nitride/nitrogen-doped hierarchical carbon hybrids as superior electrode materials

doi:10.1016/j.electacta.2019.135387

	Selectively anchored vanadate host for self-boosting catalytic synthesis of ultra-fine vanadium nitride/nitrogen-doped hierarchical carbon hybrids as superior electrode materials
	Yang, Hailun 1,2,3; Ning, Pengge 2,3; Cao, Hongbin 2,3; Yuan, Menglei 1,3; Feng, Jianpeng 3; Yue, Jiaxin 1,3; Liu, Zhenchao 2,3; Xu, Gaojie 2,3; Li, Yuping 2,3
刊名	ELECTROCHIMICA ACTA
	2020-02-01
卷号	332 页码:11
关键词	Metal-organic compounds Solvent extraction Vanadium nitride Hierarchical structured carbon hybrids Supercapacitor
ISSN号	0013-4686
DOI	10.1016/j.electacta.2019.135387
英文摘要	Hierarchically 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.
资助项目	Youth Innovation Promotion Association, CAS[2016042] ; National Science Fund for Distinguished Young Scholars of China[51425405]
WOS关键词	POROUS CARBON ; GRAPHENE NANOCOMPOSITES ; TEMPERATURE SYNTHESIS ; TEMPLATE SYNTHESIS ; ANODE MATERIALS ; NITRIDE ; COMPOSITE ; EXTRACTION ; NANOSHEETS ; RECOVERY
WOS研究方向	Electrochemistry
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000506201800024
资助机构	Youth Innovation Promotion Association, CAS ; National Science Fund for Distinguished Young Scholars of China
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/38521]
专题	中国科学院过程工程研究所
通讯作者	Ning, Pengge
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, 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.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
推荐引用方式 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.