IHEP OpenIR  > 北京同步辐射装置
Single copper sites dispersed on hierarchically porous carbon for improving oxygen reduction reaction towards zinc-air battery
BSRF用户
2021
Source PublicationNANO RESEARCH
ISSN1998-0124
EISSN1998-0000
Volume14Issue:4Pages:998--1003
SubtypeArticle
AbstractThe demand for high-performance non-precious-metal electrocatalysts to replace the noble metal-based catalysts for oxygen reduction reaction (ORR) is intensively increasing. Herein, single-atomic copper sites supported on N-doped three-dimensional hierarchically porous carbon catalyst (Cu-1/NC) was prepared by coordination pyrolysis strategy. Remarkably, the Cu-1/NC-900 catalyst not only exhibits excellent ORR performance with a half-wave potential of 0.894 V (vs. RHE) in alkaline media, outperforming those of commercial Pt/C (0.851 V) and Cu nanoparticles anchored on N-doped porous carbon (CuNPs/NC-900), but also demonstrates high stability and methanol tolerance. Moreover, the Cu-1/NC-900 based Zn-air battery exhibits higher power density, rechargeability and cyclic stability than the one based on Pt/C. Both experimental and theoretical investigations demonstrated that the excellent performance of the as-obtained Cui/NC-900 could be attributed to the synergistic effect between copper coordinated by three N atoms active sites and the neighbouring carbon defect, resulting in elevated Cu d-band centers of Cu atoms and facilitating intermediate desorption for ORR process. This study may lead towards the development of highly efficient non-noble metal catalysts for applications in electrochemical energy conversion.
DOI10.1007/s12274-020-3141-x
Indexed BySCI ; ADS
Language英语
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000582105900004
ADS Bibcode2021NaRes..14..998W
ADS URLhttps://ui.adsabs.harvard.edu/abs/2021NaRes..14..998W
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2021NaRes..14..998W/citations
ItemNoBSRF00909
beamline1W1B
Citation statistics
Cited Times:14 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/293677
Collection北京同步辐射装置
Recommended Citation
GB/T 7714
BSRF用户. Single copper sites dispersed on hierarchically porous carbon for improving oxygen reduction reaction towards zinc-air battery[J]. NANO RESEARCH,2021,14(4):998--1003.
APA BSRF用户.(2021).Single copper sites dispersed on hierarchically porous carbon for improving oxygen reduction reaction towards zinc-air battery.NANO RESEARCH,14(4),998--1003.
MLA BSRF用户."Single copper sites dispersed on hierarchically porous carbon for improving oxygen reduction reaction towards zinc-air battery".NANO RESEARCH 14.4(2021):998--1003.
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