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Topological defect and sp3/sp2 carbon interface derived from ZIF-8 with linker vacancies for oxygen reduction reaction

文献类型：期刊论文

作者Gao, Haixing9; Wang, Shuo9; Cheong, Weng-Chon (Max)8; Wang, Kaixi9; Xu, Huifang9; Huang, Aijian6,7; Ma, Junguo6; Li, Jiazhan6; Ip, Weng-Fai (Andy)8; San Hui, Kwan5
刊名CARBON
出版日期2023-01-25
卷号203页码:76-87
ISSN号0008-6223
关键词Metal-free Carbon-based materials Metal-organic framework Defect chemistry Metal-air battery
DOI10.1016/j.carbon.2022.10.030
通讯作者Cheong, Weng-Chon (Max)(maxcheong@um.edu.mo) ; San Hui, Kwan(k.hui@uea.ac.uk) ; Hui, Kwun Nam(bizhui@um.edu.mo)
英文摘要Defects in nanocarbon materials can trigger their intriguing electrochemical properties and potential applica-tions, but their synthesis is challenging. Herein, we report the synthesis of ultrathin nitrogen-doped carbon nanosheets with intrinsic defects through the pyrolysis of ZIF-8 with linker vacancies. The as-synthesized elec-trocatalyst exhibits excellent oxygen reduction reaction (ORR) activity with an onset potential and half-wave potential of 1.05 and 0.873 V vs. RHE, respectively, outperforming the reported metal-free ORR electro-catalysts. It also shows a commercial Pt/C-comparable performance in zinc-air battery with a power density of 154.4 mW cm-2. Characterization and DFT calculation results suggest the adjacent sp3-carbon in carbon pentagon can significantly strengthen the adsorption and activation of oxygen molecules on sp2-carbon, hence the potential determining step is altered and ORR overpotential is lowered. This work highlights a promising green synthesis strategy of MOF-derived metal-free nanocarbon materials for wide application in advanced energy technologies.
WOS关键词METAL-FREE ; ACTIVE-SITES ; ELECTROCATALYSTS ; CATALYSTS ; GRAPHENE
资助项目Science and Technology Development Fund (FDCT) of Macao S.A.R.[0041/2019/A1] ; Science and Technology Development Fund (FDCT) of Macao S.A.R.[0046/2019/AFJ] ; Science and Technology Development Fund (FDCT) of Macao S.A.R.[0021/2019/AIR] ; Science and Technology Development Fund (FDCT) of Macao S.A.R.[0032/2021/ITP] ; University of Macau[MYRG2018-00192-IAPME] ; University of Macau[MYRG2020-00187-IAPME] ; Beijing Municipal Natural Science Foundation[2214060] ; UEA funding
WOS研究方向Chemistry ; Materials Science
语种英语
WOS记录号WOS:000892285300004
资助机构Science and Technology Development Fund (FDCT) of Macao S.A.R. ; University of Macau ; Beijing Municipal Natural Science Foundation ; UEA funding
源URL[http://dspace.imech.ac.cn/handle/311007/91228]  
专题力学研究所_高温气体动力学国家重点实验室
通讯作者Cheong, Weng-Chon (Max); San Hui, Kwan; Hui, Kwun Nam
作者单位1.South China Normal Univ, Sch Phys & Telecommun Engn, State Key Lab Opt Informat Phys & Technol, Guangzhou 510006, Peoples R China
2.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China
3.Chinese Acad Sci, Ningbo Inst Mat Technol, Engn, Ningbo 315201, Peoples R China
4.Nguyen Tat Thanh Univ, NTT Hitech Inst, Ho Chi Minh City 700000, Vietnam
5.Univ East Anglia, Fac Sci, Sch Engn, Norwich NR4 7TJ, England
6.Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China
7.Univ Elect Sci & Technol China, Sch Elect Sci & Engn, Chengdu 610054, Peoples R China
8.Univ Macau, Fac Sci & Technol, Dept Phys & Chem, Zhuhai 999078, Peoples R China
9.Univ Macau, Inst Appl Phys & Mat Engn, Joint Key Lab, Minist Educ, Zhuhai 999078, Peoples R China
推荐引用方式
GB/T 7714		 Gao, Haixing,Wang, Shuo,Cheong, Weng-Chon ,et al. Topological defect and sp3/sp2 carbon interface derived from ZIF-8 with linker vacancies for oxygen reduction reaction[J]. CARBON,2023,203:76-87.
APA Gao, Haixing.,Wang, Shuo.,Cheong, Weng-Chon .,Wang, Kaixi.,Xu, Huifang.,...&宾峰.(2023).Topological defect and sp3/sp2 carbon interface derived from ZIF-8 with linker vacancies for oxygen reduction reaction.CARBON,203,76-87.
MLA Gao, Haixing,et al."Topological defect and sp3/sp2 carbon interface derived from ZIF-8 with linker vacancies for oxygen reduction reaction".CARBON 203(2023):76-87.

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