In situ synthesis of Fe2O3nanosphere/Co3O4nanowire-connected reduced graphene oxide hybrid networks for high-performance supercapacitors

doi:10.1039/d1nr00126d

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	In situ synthesis of Fe2O3nanosphere/Co3O4nanowire-connected reduced graphene oxide hybrid networks for high-performance supercapacitors
	Wang, Yan 3,4; Zhou, Jianhao 3; Zhou, Zhiyu 3; Lv, Huifang 3; Gu, Bingni 1,5,6; Wang, Kuangye 1,5,6; Chen, Zexiang 3,4; Yan, Xinyu 3; Zhang, Jijun 3; Liu, Wen-Wu 2
刊名	Nanoscale
	2021-09-28
卷号	13 期号:36 页码:15431-15444
关键词	Aluminum compounds Capacitance Electrochemical electrodes Graphene Hematite Nickel compounds Supercapacitor Conductive behavior Electrochemical supercapacitor Energy density Hybrid network Hydrothermal methods In-situ synthesis Interconnected structures Nucleation sites Performance Reduced graphene oxides
ISSN号	20403364
DOI	10.1039/d1nr00126d
英文摘要	Three-dimensional (3D) hybrid networks consisting of reduced graphene oxide (rGO) sheets interconnected by Co3O4 nanowires (rGO/Co3O4), followed by the decoration of Fe2O3 nanospheres (NSs) (rGO/Co3O4@Fe2O3), were demonstrated by a facile hydrothermal method, with which the rGO/Co3O4 networks acted as nucleation sites for the in situ synthesis of Fe2O3 NSs. The intimate contacts between rGO, Co3O4 NWs and Fe2O3 NSs, which result in an excellent conductive behavior, provide a unique structure with huge potential for electrochemical property promoted electrochemical supercapacitors. The rGO/Co3O4@Fe2O3 hybrid networks as electrodes exhibit a high capacitance of 784 F g-1 at 1 A g-1 with 83% retention of the initial capacitance as the current density increases from 1 to 10 A g-1, which is explained by the graphene-based interconnected structure owing to the advantages of accommodating the volume expansion between Co3O4 NWs and Fe2O3 NSs. The supercapacitor was assembled by applying a nickel aluminum layered double hydroxide (NiAl-LDH) structure and rGO/Co3O4@Fe2O3 as the electrode materials and yields an energy density of 70.78 W h kg-1 at a power density of 0.29 kW kg-1. The energy density can maintain 24.24 W h kg-1 with 9.94 kW kg-1. © The Royal Society of Chemistry.
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	Royal Society of Chemistry
WOS记录号	WOS:000694664800001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/151086]
专题	省部共建有色金属先进加工与再利用国家重点实验室
作者单位	1.Department of Physics, National Sun Yat-Sen University, Kaohsiung; 80424, Taiwan; 2.State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China 3.School of Optoelectronic Science and Engineering of UESTC, University of Electronic Science and Technology of China, Jianshe North Road 4, Chengdu; 610054, China; 4.Sichuan Province Key Laboratory of Display Science and Technology, Jianshe North Road 4, Chengdu; 610054, China; 5.Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu; 30013, Taiwan; 6.Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu; 30013, Taiwan;
推荐引用方式 GB/T 7714	Wang, Yan,Zhou, Jianhao,Zhou, Zhiyu,et al. In situ synthesis of Fe2O3nanosphere/Co3O4nanowire-connected reduced graphene oxide hybrid networks for high-performance supercapacitors[J]. Nanoscale,2021,13(36):15431-15444.
APA	Wang, Yan.,Zhou, Jianhao.,Zhou, Zhiyu.,Lv, Huifang.,Gu, Bingni.,...&Chueh, Yu-Lun.(2021).In situ synthesis of Fe2O3nanosphere/Co3O4nanowire-connected reduced graphene oxide hybrid networks for high-performance supercapacitors.Nanoscale,13(36),15431-15444.
MLA	Wang, Yan,et al."In situ synthesis of Fe2O3nanosphere/Co3O4nanowire-connected reduced graphene oxide hybrid networks for high-performance supercapacitors".Nanoscale 13.36(2021):15431-15444.