In Situ Synthesis of Vertical Standing Nanosized NiO Encapsulated in Graphene as Electrodes for High‐Performance Supercapacitors

Abstract NiO is a promising electrode material for supercapacitors. Herein, the novel vertically standing nanosized NiO encapsulated in graphene layers (G@NiO) are rationally designed and synthesized as nanosheet arrays. This unique vertical standing structure of G@NiO nanosheet arrays can enlarge t...

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Main Authors:	Jinghuang Lin, Henan Jia, Haoyan Liang, Shulin Chen, Yifei Cai, Junlei Qi, Chaoqun Qu, Jian Cao, Weidong Fei, Jicai Feng
Format:	Article
Language:	English
Published:	Wiley 2018-03-01
Series:	Advanced Science
Subjects:	graphene in situ synthesis NiO plasma‐enhanced chemical vapor deposition (PECVD) supercapacitors
Online Access:	https://doi.org/10.1002/advs.201700687

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spelling	doaj-83a5ce8b6fb5419abca3703c961385d52021-04-19T10:50:38ZengWileyAdvanced Science2198-38442018-03-0153n/an/a10.1002/advs.201700687In Situ Synthesis of Vertical Standing Nanosized NiO Encapsulated in Graphene as Electrodes for High‐Performance SupercapacitorsJinghuang Lin0Henan Jia1Haoyan Liang2Shulin Chen3Yifei Cai4Junlei Qi5Chaoqun Qu6Jian Cao7Weidong Fei8Jicai Feng9State Key Laboratory of Advanced Welding and Joining Harbin Institute of Technology Harbin 150001 ChinaState Key Laboratory of Advanced Welding and Joining Harbin Institute of Technology Harbin 150001 ChinaState Key Laboratory of Advanced Welding and Joining Harbin Institute of Technology Harbin 150001 ChinaState Key Laboratory of Advanced Welding and Joining Harbin Institute of Technology Harbin 150001 ChinaState Key Laboratory of Advanced Welding and Joining Harbin Institute of Technology Harbin 150001 ChinaState Key Laboratory of Advanced Welding and Joining Harbin Institute of Technology Harbin 150001 ChinaKey Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal University Siping 136000 ChinaState Key Laboratory of Advanced Welding and Joining Harbin Institute of Technology Harbin 150001 ChinaState Key Laboratory of Advanced Welding and Joining Harbin Institute of Technology Harbin 150001 ChinaState Key Laboratory of Advanced Welding and Joining Harbin Institute of Technology Harbin 150001 ChinaAbstract NiO is a promising electrode material for supercapacitors. Herein, the novel vertically standing nanosized NiO encapsulated in graphene layers (G@NiO) are rationally designed and synthesized as nanosheet arrays. This unique vertical standing structure of G@NiO nanosheet arrays can enlarge the accessible surface area with electrolytes, and has the benefits of short ion diffusion path and good charge transport. Further, an interconnected graphene conductive network acts as binder to encapsulate the nanosized NiO particles as core–shell structure, which can promote the charge transport and maintain the structural stability. Consequently, the optimized G@NiO hybrid electrodes exhibit a remarkably enhanced specific capacity up to 1073 C g−1 and excellent cycling stability. This study provides a facial strategy to design and construct high‐performance metal oxides for energy storage.https://doi.org/10.1002/advs.201700687graphenein situ synthesisNiOplasma‐enhanced chemical vapor deposition (PECVD)supercapacitors
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Jinghuang Lin Henan Jia Haoyan Liang Shulin Chen Yifei Cai Junlei Qi Chaoqun Qu Jian Cao Weidong Fei Jicai Feng
spellingShingle	Jinghuang Lin Henan Jia Haoyan Liang Shulin Chen Yifei Cai Junlei Qi Chaoqun Qu Jian Cao Weidong Fei Jicai Feng In Situ Synthesis of Vertical Standing Nanosized NiO Encapsulated in Graphene as Electrodes for High‐Performance Supercapacitors Advanced Science graphene in situ synthesis NiO plasma‐enhanced chemical vapor deposition (PECVD) supercapacitors
author_facet	Jinghuang Lin Henan Jia Haoyan Liang Shulin Chen Yifei Cai Junlei Qi Chaoqun Qu Jian Cao Weidong Fei Jicai Feng
author_sort	Jinghuang Lin
title	In Situ Synthesis of Vertical Standing Nanosized NiO Encapsulated in Graphene as Electrodes for High‐Performance Supercapacitors
title_short	In Situ Synthesis of Vertical Standing Nanosized NiO Encapsulated in Graphene as Electrodes for High‐Performance Supercapacitors
title_full	In Situ Synthesis of Vertical Standing Nanosized NiO Encapsulated in Graphene as Electrodes for High‐Performance Supercapacitors
title_fullStr	In Situ Synthesis of Vertical Standing Nanosized NiO Encapsulated in Graphene as Electrodes for High‐Performance Supercapacitors
title_full_unstemmed	In Situ Synthesis of Vertical Standing Nanosized NiO Encapsulated in Graphene as Electrodes for High‐Performance Supercapacitors
title_sort	in situ synthesis of vertical standing nanosized nio encapsulated in graphene as electrodes for high‐performance supercapacitors
publisher	Wiley
series	Advanced Science
issn	2198-3844
publishDate	2018-03-01
description	Abstract NiO is a promising electrode material for supercapacitors. Herein, the novel vertically standing nanosized NiO encapsulated in graphene layers (G@NiO) are rationally designed and synthesized as nanosheet arrays. This unique vertical standing structure of G@NiO nanosheet arrays can enlarge the accessible surface area with electrolytes, and has the benefits of short ion diffusion path and good charge transport. Further, an interconnected graphene conductive network acts as binder to encapsulate the nanosized NiO particles as core–shell structure, which can promote the charge transport and maintain the structural stability. Consequently, the optimized G@NiO hybrid electrodes exhibit a remarkably enhanced specific capacity up to 1073 C g−1 and excellent cycling stability. This study provides a facial strategy to design and construct high‐performance metal oxides for energy storage.
topic	graphene in situ synthesis NiO plasma‐enhanced chemical vapor deposition (PECVD) supercapacitors
url	https://doi.org/10.1002/advs.201700687
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In Situ Synthesis of Vertical Standing Nanosized NiO Encapsulated in Graphene as Electrodes for High‐Performance Supercapacitors

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