Surface engineering of hierarchical platinum-cobalt nanowires for   efficient electrocatalysis

doi:10.1038/ncomms11850

CORC > 北京大学 > 工学院

	Surface engineering of hierarchical platinum-cobalt nanowires for efficient electrocatalysis
	Bu, Lingzheng ; Guo, Shaojun ; Zhang, Xu ; Shen, Xuan ; Su, Dong ; Lu, Gang ; Zhu, Xing ; Yao, Jianlin ; Guo, Jun ; Huang, Xiaoqing
刊名	NATURE COMMUNICATIONS
	2016
关键词	OXYGEN REDUCTION REACTION FUEL-CELLS BIMETALLIC NANOCRYSTALS COMPUTATIONAL DESIGN ALLOY NANOPARTICLES CATALYSTS ENERGY PD METALS
DOI	10.1038/ncomms11850
英文摘要	Despite intense research in past decades, the lack of high-performance catalysts for fuel cell reactions remains a challenge in realizing fuel cell technologies for transportation applications. Here we report a facile strategy for synthesizing hierarchical platinum-cobalt nanowires with high-index, platinum-rich facets and ordered intermetallic structure. These structural features enable unprecedented performance for the oxygen reduction and alcohol oxidation reactions. The specific/mass activities of the platinum-cobalt nanowires for oxygen reduction reaction are 39.6/33.7 times higher than commercial Pt/C catalyst, respectively. Density functional theory simulations reveal that the active threefold hollow sites on the platinum-rich high-index facets provide an additional factor in enhancing oxygen reduction reaction activities. The nanowires are stable in the electrochemical conditions and also thermally stable. This work may represent a key step towards scalable production of high-performance platinum-based nanowires for applications in catalysis and energy conversion.; Soochow University; Peking University, Young Thousand Talented Program; National Natural Science Foundation of China [21571135]; National Basic Research Program of China (Battery); Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD); US Army Research Office via the MURI grant [W911NF-11-1-0353]; US Department of Energy, Office of Basic Energy Sciences [DE-SC0012704]; SCI(E); PubMed; ARTICLE; guosj@pku.edu.cn; hxq006@suda.edu.cn; 11850; 7
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/492244]
专题	工学院
推荐引用方式 GB/T 7714	Bu, Lingzheng,Guo, Shaojun,Zhang, Xu,et al. Surface engineering of hierarchical platinum-cobalt nanowires for efficient electrocatalysis[J]. NATURE COMMUNICATIONS,2016.
APA	Bu, Lingzheng.,Guo, Shaojun.,Zhang, Xu.,Shen, Xuan.,Su, Dong.,...&Huang, Xiaoqing.(2016).Surface engineering of hierarchical platinum-cobalt nanowires for efficient electrocatalysis.NATURE COMMUNICATIONS.
MLA	Bu, Lingzheng,et al."Surface engineering of hierarchical platinum-cobalt nanowires for efficient electrocatalysis".NATURE COMMUNICATIONS (2016).