Ultrathin Co3O4 nanosheet clusters anchored on nitrogen doped carbon nanotubes/3D graphene as binder-free cathodes for Al-air battery

doi:10.1016/j.cej.2019.122681

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	Ultrathin Co3O4 nanosheet clusters anchored on nitrogen doped carbon nanotubes/3D graphene as binder-free cathodes for Al-air battery
	Liu, Yisi 1,3; Yang, Lishan 4; Xie, Bo 3; Zhao, Nian 3; Yang, Lun 3; Zhan, Faqi 2; Pan, Qiyun 3; Han, Juanjuan 3; Wang, Xiuzhang 3; Liu, Junming 5
刊名	Chemical Engineering Journal
	2020-02-01
卷号	381
关键词	Alkalinity Aluminum coatings Binders Carbon nanotubes Catalyst activity Cathodes Chemical vapor deposition Cyclic voltammetry Doping (additives) Electrocatalysts Electrolytic reduction Foams Graphene Graphite electrodes Nanosheets Nitrogen Open circuit voltage Oxygen reduction reaction Binder free Chemical vapor depositions (CVD) Coin cells Discharge current density Electrocatalytic performance Linear sweep voltammograms Nitrogen doped carbon nanotubes Three-dimensional graphene
ISSN号	13858947
DOI	10.1016/j.cej.2019.122681
英文摘要	Great efforts have been focused on exploring high-efficiency and stable catalysts towards oxygen reduction reaction (ORR) and reducing the use of polymer binders in cathodes for metal-air batteries. In consideration of synergistic effects, unique porous structure and improved properties, a composite of carbon nanotubes and three-dimensional graphene (CNTs-3D graphene) developed via a well-controlled route is urgently required. Herein, an ultrathin Co3O4 nanosheet clusters anchored on nitrogen-doped carbon nanotubes/3D graphene (NCNTs/3D graphene) composite was prepared by chemical vapor deposition (CVD) along with thermal treatments over a Ni foam substrate. The cyclic voltammetry (CV) and linear sweep voltammograms (LSVs) results indicate that the Co3O4/NCNTs/3D graphene composite possesses remarkable electrocatalytic performance towards ORR in alkaline condition compared with NCNTs/3D graphene, Co3O4/3D graphene, and 3D graphene catalysts, even outperforming the commercial 20 wt% Pt/C catalyst. Moreover, the Al-air coin cell employing Co3O4/NCNTs/3D graphene as binder-free cathode obtains an open circuit voltage of 1.52 V, a specific capacity of 482.80 mAh g−1 at the discharge current density of 1.0 mA cm−2, and a maximum power density (Pmax) of 4.88 mW cm−2, which are superior to the Al-air coin cell using Co3O4/3D graphene, Pt/C, and traditional Co3O4/NCNTs/3D graphene electrodes. This work supplies valuable insights to develop scalable binder-free cathodes using NCNTs/3D graphene based electrocatalysts with excellent catalytic activity towards ORR in Al-air systems. © 2019
WOS研究方向	Engineering
语种	英语
出版者	Elsevier B.V., Netherlands
WOS记录号	WOS:000499066900140
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/115757]
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.School of Chemistry and Chemical Engineering, Central South University, Changsha; 410083, China; 2.State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China; 3.Institute of Advanced Materials, Hubei Normal University, Huangshi; 415000, China; 4.National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha; 410081, China; 5.National Laboratory of Solid State Microstructures, Nanjing University, Nanjing; 210093, China
推荐引用方式 GB/T 7714	Liu, Yisi,Yang, Lishan,Xie, Bo,et al. Ultrathin Co3O4 nanosheet clusters anchored on nitrogen doped carbon nanotubes/3D graphene as binder-free cathodes for Al-air battery[J]. Chemical Engineering Journal,2020,381.
APA	Liu, Yisi.,Yang, Lishan.,Xie, Bo.,Zhao, Nian.,Yang, Lun.,...&Yang, Yahui.(2020).Ultrathin Co3O4 nanosheet clusters anchored on nitrogen doped carbon nanotubes/3D graphene as binder-free cathodes for Al-air battery.Chemical Engineering Journal,381.
MLA	Liu, Yisi,et al."Ultrathin Co3O4 nanosheet clusters anchored on nitrogen doped carbon nanotubes/3D graphene as binder-free cathodes for Al-air battery".Chemical Engineering Journal 381(2020).