CAS OpenIR
PEDOT functionalized ZIF-67 derived Co-N-S triple-doped porous carbon for high-efficiency oxygen reduction
Huang, Kexin1,3; Li, Jia1; Sun, Miaolan1; Yang, Zhongyun1; Fan, Youjun1; Du, Xuechun1; Chen, Wei1; Yang, Jun2
2021
Source PublicationAPPLIED SURFACE SCIENCE
ISSN0169-4332
Volume535Pages:8
AbstractHerein, 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.
KeywordPEDOT ZIF-67 Multi-doping Porous carbon Oxygen reduction reaction
DOI10.1016/j.apsusc.2020.147659
Language英语
WOS KeywordMETAL-ORGANIC FRAMEWORK ; ELECTROCATALYTIC ACTIVITY ; GRAPHENE ; NANOPARTICLES ; NANOTUBES ; CATALYST ; IRON ; NANOCRYSTALS ; MATRIX
Funding ProjectNational 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 Research AreaChemistry ; Materials Science ; Physics
WOS SubjectChemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
Funding OrganizationNational 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
WOS IDWOS:000582373900022
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/42506
Collection中国科学院过程工程研究所
Corresponding AuthorFan, Youjun; Chen, Wei; Yang, Jun
Affiliation1.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
Recommended Citation
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.
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