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Fast acid-leaching strategy treated hollow cobalt-carbon materials as highly efficient electrochemical catalysts for Zn-air batteries

文献类型：期刊论文

作者Yang, Jun2; Long, Jilan2; Chen, Cheng2; Liang, Guangming2; Tang, Bing2; Liu, Xiaohong3; Zhang, Wei1
刊名MATERIALS CHEMISTRY FRONTIERS
出版日期2021-11-30
页码13
DOI10.1039/d1qm01293b
通讯作者Long, Jilan(xlong612@126.com) ; Zhang, Wei(andyzhangwei@163.com)
英文摘要Metal-organic frameworks (MOFs) are employed as ideal calcining templates for the synthesis of highly efficient metal-carbon based oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) catalysts. However, owing to their high density of metal centers, MOFs derived metal-carbon based catalysts exhibit seriously aggregated metal nanoparticles, which greatly hinders their electrochemical performance. In this work, we synthesize a hollow Co@CN-P catalyst using in situ N,P-doped Co-MOF as a template and then post-treat it using a fast acid-leaching strategy [denoted as Co@CN-P-H+(D)] to remove aggregated, inefficient and unstable metal nanoparticles. In constrast, an impregnation acid-leaching strategy [denoted as Co@CN-P-H+(12 h)] is also investigated in this work. The optimal Co@CN-P-10-750-H+(D) catalyst exhibits enhanced electrochemical performance, with a potential difference between the ORR and OER of only 0.734 V. When used as a cathode catalyst, the Co@CN-P-10-750-H+(D) based liquid Zn-air battery (ZAB) exhibits the highest maximum power density and specific capacity (204.8 mW cm(-2), 790.4 mA h g(-1)). Moreover, the liquid ZAB also delivers a long-term cycling stability (>800 cycles). The Co@CN-P-10-750-H+(D) based solid-state battery also exhibits ultra-high maximum power density, specific capacity and long-term charge-discharge stability. In addition, the ZAB also displays strong practical application.
资助项目National Natural Science Foundation of China[21706217] ; Fundamental Research Funds of China West Normal University[CXTD2020-1,17C035] ; Scientific Research Fund of Science & Technology of Sichuan[2021YJ0410] ; Natural Science Foundation of Chongqing China[cstc2021jcyj-jqX0031] ; Chongqing Talents: Exceptional Young Talents Project[CQYC201905041]
WOS研究方向Chemistry ; Materials Science
语种英语
出版者ROYAL SOC CHEMISTRY
WOS记录号WOS:000729538000001
源URL[http://119.78.100.138/handle/2HOD01W0/14713]  
专题中国科学院重庆绿色智能技术研究院
通讯作者Long, Jilan; Zhang, Wei
作者单位1.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China
2.China West Normal Univ, Coll Chem & Chem Engn, Chem Synth & Pollut Control Key Lab Sichuan Prov, Nanchong 637000, Peoples R China
3.Natl Univ Singapore Chongqing Res Inst, Chongqing 401123, Peoples R China
推荐引用方式
GB/T 7714		 Yang, Jun,Long, Jilan,Chen, Cheng,et al. Fast acid-leaching strategy treated hollow cobalt-carbon materials as highly efficient electrochemical catalysts for Zn-air batteries[J]. MATERIALS CHEMISTRY FRONTIERS,2021:13.
APA Yang, Jun.,Long, Jilan.,Chen, Cheng.,Liang, Guangming.,Tang, Bing.,...&Zhang, Wei.(2021).Fast acid-leaching strategy treated hollow cobalt-carbon materials as highly efficient electrochemical catalysts for Zn-air batteries.MATERIALS CHEMISTRY FRONTIERS,13.
MLA Yang, Jun,et al."Fast acid-leaching strategy treated hollow cobalt-carbon materials as highly efficient electrochemical catalysts for Zn-air batteries".MATERIALS CHEMISTRY FRONTIERS (2021):13.

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来源：重庆绿色智能技术研究院

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