CAS OpenIR  > 中科院上海应用物理研究所2011-2018年
In situ directional formation of Co@CoOx-embedded 1D carbon nanotubes as an efficient oxygen electrocatalyst for ultra-high rate Zn-air batteries
Lin, C; Shinde, SS; Jiang, Z; Song, XK; Sun, Y; Guo, LL; Zhang, H; Jung, JY; Li, XP; Lee, JH
2017
Source PublicationJOURNAL OF MATERIALS CHEMISTRY A
ISSN2050-7488
Volume5Issue:27Pages:13994-14002
Subtype期刊论文
AbstractIn this work, we demonstrate a "three birds one stone" strategy for preparing 1D N-doped porous carbon nanotubes embedded with core-shell Co@CoOx nanoparticles (Co@CoOx/NCNTs) from bimetallic ZnO@Zn/Co-ZIF nanowires. The ZnO nanowires played three roles: (i) ZnO acted as a template for 1D metal-organic framework (MOF) growth, (ii) in situ evaporation of Zn during pyrolysis prevented the aggregation of the carbon framework and benefited the formation of hierarchical pores, and (iii) the excess Oxygen species released from ZnO in situ reacted with metallic cobalt nanoparticles during pyrolysis, leading to the configuration of a Co@CoOx core-shell structure. The as-prepared 1D Co@CoOx/NCNTs exhibited excellent oxygen reduction reaction performance, including a high kinetic current (4.6 times better compared to 20 wt% Pt/C at 0.7 V), a low Tafel slope of 80 mV dec(-1), outstanding stability, and strong tolerance to CH3OH crossover. The assembled Zn-air batteries with Co@CoOx/NCNTs yielded high open-circuit voltage (1.52 V), superior stability (over 100 h of operation), and unprecedented rate performance that ranged from 1 to 500 mA cm(-2), while existing batteries have never achieved a galvanostatic discharge current density larger than 300 mA cm(-2). Such exceptional rate capability was ascribed to the formation of a uniform interconnected nanotube network, facilitated electron transport, and an enlarged electrochemically accessible surface area in the unique 1D porous tubular structure.
KeywordMetal-organic Framework Hydrogen Evolution Reaction Reduction Reaction Templating Synthesis Graphene Catalysts Nanoparticles Nanosheets Electrode Arrays
DOI10.1039/c7ta02215h
WOS KeywordMETAL-ORGANIC FRAMEWORK ; HYDROGEN EVOLUTION REACTION ; REDUCTION REACTION ; TEMPLATING SYNTHESIS ; GRAPHENE ; CATALYSTS ; NANOPARTICLES ; NANOSHEETS ; ELECTRODE ; ARRAYS
Indexed BySCI
Language英语
WOS IDWOS:000405190000011
Citation statistics
Cited Times:29[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/28693
Collection中科院上海应用物理研究所2011-2018年
Recommended Citation
GB/T 7714
Lin, C,Shinde, SS,Jiang, Z,et al. In situ directional formation of Co@CoOx-embedded 1D carbon nanotubes as an efficient oxygen electrocatalyst for ultra-high rate Zn-air batteries[J]. JOURNAL OF MATERIALS CHEMISTRY A,2017,5(27):13994-14002.
APA Lin, C.,Shinde, SS.,Jiang, Z.,Song, XK.,Sun, Y.,...&Lee, JH.(2017).In situ directional formation of Co@CoOx-embedded 1D carbon nanotubes as an efficient oxygen electrocatalyst for ultra-high rate Zn-air batteries.JOURNAL OF MATERIALS CHEMISTRY A,5(27),13994-14002.
MLA Lin, C,et al."In situ directional formation of Co@CoOx-embedded 1D carbon nanotubes as an efficient oxygen electrocatalyst for ultra-high rate Zn-air batteries".JOURNAL OF MATERIALS CHEMISTRY A 5.27(2017):13994-14002.
Files in This Item: Download All
File Name/Size DocType Version Access License
In situ directional (1646KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Lin, C]'s Articles
[Shinde, SS]'s Articles
[Jiang, Z]'s Articles
Baidu academic
Similar articles in Baidu academic
[Lin, C]'s Articles
[Shinde, SS]'s Articles
[Jiang, Z]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Lin, C]'s Articles
[Shinde, SS]'s Articles
[Jiang, Z]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: In situ directional formation of Co@CoOx-embedded 1D carbon nanotubes as an efficient oxygen electrocatalyst for ultra-high rate Zn-air batteries.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.