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B,N-Doped Defective Carbon Entangled Fe3C Nanoparticles as the Superior Oxygen Reduction Electrocatalyst for Zn-Air Batteries
Zhang, GY; Liu, X; Wang, L; Sun, FF; Yang, YQ; Tian, CR; Yu, P; Pan, QW; Fu, HG
2019
Source PublicationACS SUSTAINABLE CHEMISTRY & ENGINEERING
ISSN2168-0485
Volume7Issue:23Pages:19104-19112
Subtype期刊论文
AbstractImproving the oxygen reduction reaction (ORR) activity of the Fe3C-based catalyst is greatly significant for energy conversion devices, such as fuel cells and Zn-air batteries (ZABs). Herein, biomass peanut shell is used to synthesize B,N-codoped defective graphitic carbon entangled Fe3C nano particles (D-BNGFe) via carbonizing and doping, followed by a defect creation process. In the synthesis, the usage of iron species could effectively prevent the formation of the B-N covalent bond, which maximizes the ORR activity. Moreover, a simple acid dissolution process was used to only reserve Fe3C nanoparticles encapsulated by carbon nanostructures, which can be stable during the electrocatalytic ORR as certified by operando X-ray absorption fine structure spectra and transmission electron microscopy characterization. Combining the ORR catalyst of D-BNGFe with the oxygen evolution reaction catalyst of NiFe-LDH@CF (NiFe-LDH grown on the copper foam substrate) as the air cathode, the assembled rechargeable ZABs feature a low-voltage gap, high power density, and excellent stability, which are superior to the state-of-the-art Pt/C + RuO2 and most of the nonprecious metal-based catalysts. This work provides an effective strategy to synthesize Pt-free catalysts derived from the natural plentiful biomass for satisfying the wide application of ZABs.
KeywordDOPED POROUS CARBON BIFUNCTIONAL ELECTROCATALYST EFFICIENT CATALYST BIOMASS NANOFIBERS NANOSHEETS ALKALINE GRAPHENE ROBUST
DOI10.1021/acssuschemeng.9b05033
Indexed BySCI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/31972
Collection中科院上海应用物理研究所2011-2020年
Affiliation1.Heilongjiang Univ, Key Lab Funct Inorgan Mat Chem, Minist Educ Peoples Republ China, Harbin 150080, Heilongjiang, Peoples R China;
2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China
Recommended Citation
GB/T 7714
Zhang, GY,Liu, X,Wang, L,et al. B,N-Doped Defective Carbon Entangled Fe3C Nanoparticles as the Superior Oxygen Reduction Electrocatalyst for Zn-Air Batteries[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2019,7(23):19104-19112.
APA Zhang, GY.,Liu, X.,Wang, L.,Sun, FF.,Yang, YQ.,...&Fu, HG.(2019).B,N-Doped Defective Carbon Entangled Fe3C Nanoparticles as the Superior Oxygen Reduction Electrocatalyst for Zn-Air Batteries.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,7(23),19104-19112.
MLA Zhang, GY,et al."B,N-Doped Defective Carbon Entangled Fe3C Nanoparticles as the Superior Oxygen Reduction Electrocatalyst for Zn-Air Batteries".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 7.23(2019):19104-19112.
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