Iced photochemical reduction to synthesize atomically dispersed metals by suppressing nanocrystal growth

doi:10.1038/s41467-017-01521-4

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Iced photochemical reduction to synthesize atomically dispersed metals by suppressing nanocrystal growth
	Wei, HH; Huang, K; Wang, D; Zhang, RY; Ge, BH; Ma, JY; Wen, B; Zhang, S; Li, QY; Lei, M
刊名	NATURE COMMUNICATIONS
	2017
卷号	8 期号:-页码:-
关键词	Total-energy Calculations Single-atom Catalysis Wave Basis-set Oxidation-state Co Oxidation Hydrogen Evolution Sites Nanoparticles Activation Microscopy
ISSN号	2041-1723
DOI	10.1038/s41467-017-01521-4
文献子类	期刊论文
英文摘要	Photochemical solution-phase reactions have been widely applied for the syntheses of nanocrystals. In particular, tuning of the nucleation and growth of solids has been a major area of focus. Here we demonstrate a facile approach to generate atomically dispersed platinum via photochemical reduction of frozen chloroplatinic acid solution using ultraviolet light. Using this iced-photochemical reduction, the aggregation of atoms is prevented, and single atoms are successfully stabilized. The platinum atoms are deposited on various substrates, including mesoporous carbon, graphene, carbon nanotubes, titanium dioxide nano-particles, and zinc oxide nanowires. The atomically dispersed platinum on mesoporous carbon exhibits efficient catalytic activity for the electrochemical hydrogen evolution reaction, with an overpotential of only 65 mV at a current density of 100 mA cm(-2) and long-time durability (> 10 h), superior to state-of-the-art platinum/carbon. This iced-photochemical reduction may be extended to other single atoms, for example gold and silver, as demonstrated in this study.
WOS关键词	TOTAL-ENERGY CALCULATIONS ; SINGLE-ATOM CATALYSIS ; WAVE BASIS-SET ; OXIDATION-STATE ; CO OXIDATION ; HYDROGEN EVOLUTION ; SITES ; NANOPARTICLES ; ACTIVATION ; MICROSCOPY
语种	英语
WOS记录号	WOS:000415124000017
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/28684]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
推荐引用方式 GB/T 7714	Wei, HH,Huang, K,Wang, D,et al. Iced photochemical reduction to synthesize atomically dispersed metals by suppressing nanocrystal growth[J]. NATURE COMMUNICATIONS,2017,8(-):-.
APA	Wei, HH.,Huang, K.,Wang, D.,Zhang, RY.,Ge, BH.,...&Wu, H.(2017).Iced photochemical reduction to synthesize atomically dispersed metals by suppressing nanocrystal growth.NATURE COMMUNICATIONS,8(-),-.
MLA	Wei, HH,et al."Iced photochemical reduction to synthesize atomically dispersed metals by suppressing nanocrystal growth".NATURE COMMUNICATIONS 8.-(2017):-.