PEDOT functionalized ZIF-67 derived Co-N-S triple-doped porous carbon for high-efficiency oxygen reduction

doi:10.1016/j.apsusc.2020.147659

	PEDOT functionalized ZIF-67 derived Co-N-S triple-doped porous carbon for high-efficiency oxygen reduction
	Huang, Kexin 1,3; Li, Jia 1; Sun, Miaolan 1; Yang, Zhongyun 1; Fan, Youjun 1; Du, Xuechun 1; Chen, Wei 1; Yang, Jun 2
刊名	APPLIED SURFACE SCIENCE
	2021
卷号	535 页码:8
关键词	PEDOT ZIF-67 Multi-doping Porous carbon Oxygen reduction reaction
ISSN号	0169-4332
DOI	10.1016/j.apsusc.2020.147659
英文摘要	Herein, we report the use of poly(3,4-ethylenedioxythiophene) functionalized ZIF-67 (PEDOT/ZIF-67) as a precursor for preparing an efficient and precious metal-free oxygen reduction reaction (ORR) catalyst. The PEDOT/ZIF-67 precursor is subjected to pyrolysis at 800 degrees C and subsequent acidic etching with 1 M HCl to form Co-N-S triple-doped porous carbon (Co-N-S-PC), in which PEDOT functionalization inhibits the aggregation of the product, while the etching removes the excess Co metal and Co oxides, leading to exposure of more active sites and increase of transport channels. Electrochemical measurements reveal that the Co-N-S-PC catalyst obtained this way has outstanding activity, improved methanol-tolerance and high stability for ORR. Specifically, the limited current density (J(L)) and half-wave potential (E-1/2) of the Co-N-S-PC are similar to 5.183 mA cm(-2) and similar to 0.845 V, respectively, higher than those of commercial Pt/C (similar to 5.049 mA cm(-2) and 0.824 V). In addition, CoN-S-PC is insensitive to methanol, without any responses to the injected 2 M CH3OH solution. Furthermore, the Co-N-S-PC displays better long-term stability, identified by its high activity retention (97.87%) and half-wave potential after chronoamperometry test for 5 h.
资助项目	National Natural Science Foundation of China[21463007] ; National Natural Science Foundation of China[21573240] ; Natural Science Foundation of Guangxi Province[2017GXNSFDA198031] ; Natural Science Foundation of Guangxi Province[2019GXNSFGA245003] ; Innovation Project of Guangxi Graduate Education[XYCBZ2019004] ; State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences[MPCS-2017-A-02] ; State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences[MPCS-2019-A-09]
WOS关键词	METAL-ORGANIC FRAMEWORK ; ELECTROCATALYTIC ACTIVITY ; GRAPHENE ; NANOPARTICLES ; NANOTUBES ; CATALYST ; IRON ; NANOCRYSTALS ; MATRIX
WOS研究方向	Chemistry ; Materials Science ; Physics
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000582373900022
资助机构	National Natural Science Foundation of China ; Natural Science Foundation of Guangxi Province ; Innovation Project of Guangxi Graduate Education ; State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/42505]
专题	中国科学院过程工程研究所
通讯作者	Fan, Youjun; Chen, Wei; Yang, Jun
作者单位	1.Guangxi Normal Univ, Sch Chem & Pharmaceut Sci, Guangxi Key Lab Low Carbon Energy Mat, Guilin 541004, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 3.Guangxi Vocat & Tech Inst Ind, Nanning 530001, Peoples R China
推荐引用方式 GB/T 7714	Huang, Kexin,Li, Jia,Sun, Miaolan,et al. PEDOT functionalized ZIF-67 derived Co-N-S triple-doped porous carbon for high-efficiency oxygen reduction[J]. APPLIED SURFACE SCIENCE,2021,535:8.
APA	Huang, Kexin.,Li, Jia.,Sun, Miaolan.,Yang, Zhongyun.,Fan, Youjun.,...&Yang, Jun.(2021).PEDOT functionalized ZIF-67 derived Co-N-S triple-doped porous carbon for high-efficiency oxygen reduction.APPLIED SURFACE SCIENCE,535,8.
MLA	Huang, Kexin,et al."PEDOT functionalized ZIF-67 derived Co-N-S triple-doped porous carbon for high-efficiency oxygen reduction".APPLIED SURFACE SCIENCE 535(2021):8.