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Metal/Oxide Interface Nanostructures Generated by Surface Segregation for Electrocatalysis
Weng, Zhe; Liu, Wen; Yin, Li-Chang; Fang, Ruopian; Lo, Min; Altman, Eric I.; Fan, Qi; Li, Feng; Cheng, Hui-Ming; Wang, Hailiang; hailiang.wang@yale.edu
2015
Source PublicationNANO LETTERS
ISSN1530-6984
Volume15Issue:11Pages:7704-7710
AbstractStrong metal/oxide interactions have been acknowledged to play prominent roles in chemical catalysis in the gas phase, but remain as an unexplored area in electrocatalysis in the liquid phase. Utilization of metal/oxide interface structures could generate high performance electrocatalysts for clean energy storage and conversion. However, building highly dispersed nanoscale metal/oxide interfaces on conductive scaffolds remains a significant challenge. Here, we report a novel strategy to create metal/oxide interface nanostructures by growing mixed metal oxide nanoparticles on carbon nanotubes (CNTs) and then selectively promoting migration of one of the metal ions to the surface of the oxide nanoparticles and simultaneous reduction to metal. Employing this strategy, we have synthesized Ni/CeO2 nanointerfaces coupled with CNTs. The Ni/CeO2 interface promotes hydrogen evolution catalysis by facilitating water dissociation and modifying the hydrogen binding energy. The Ni/CeO2-CNT hybrid material exhibits superior activity for hydrogen evolution as a result of synergistic effects including strong metal/oxide interactions, inorganic/carbon coupling, and particle size control.
description.department[weng, zhe ; liu, wen ; fan, qi ; wang, hailiang] yale univ, energy sci inst, new haven, ct 06520 usa ; [weng, zhe ; liu, wen ; fan, qi ; wang, hailiang] yale univ, dept chem, new haven, ct 06520 usa ; [lo, min ; altman, eric i.] yale univ, dept chem & environm engn, new haven, ct 06520 usa ; [yin, li-chang ; fang, ruopian ; li, feng ; cheng, hui-ming] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china
KeywordMetal/oxide Interface Electrocatalysis Surface Segregation Hydrogen Evolution
Funding OrganizationYale University; Global Innovation Initiative from Institute of International Education; National Natural Science Foundation of China [51202255, 51472249, 51221264, 51172239, 51272051, U1401243]; Ministry of Science and Technology of China [2011CB932604, 2014CB932402]; U.S. Department of Energy through Basic Energy Sciences grant [DE-FG02-98ER14882]; National Science Foundation through Yale Materials Research Science and Engineering Center [MRSEC DMR-1119826]
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/74964
Collection中国科学院金属研究所
Corresponding Authorhailiang.wang@yale.edu
Recommended Citation
GB/T 7714
Weng, Zhe,Liu, Wen,Yin, Li-Chang,et al. Metal/Oxide Interface Nanostructures Generated by Surface Segregation for Electrocatalysis[J]. NANO LETTERS,2015,15(11):7704-7710.
APA Weng, Zhe.,Liu, Wen.,Yin, Li-Chang.,Fang, Ruopian.,Lo, Min.,...&hailiang.wang@yale.edu.(2015).Metal/Oxide Interface Nanostructures Generated by Surface Segregation for Electrocatalysis.NANO LETTERS,15(11),7704-7710.
MLA Weng, Zhe,et al."Metal/Oxide Interface Nanostructures Generated by Surface Segregation for Electrocatalysis".NANO LETTERS 15.11(2015):7704-7710.
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