Chlorine as an Indicator in the Controllable Preparation of Active Nano-Gold Catalyst

	Chlorine as an Indicator in the Controllable Preparation of Active Nano-Gold Catalyst
	Zhang, CM; Liu, LQ; Cui, XJ; Zheng, LR; Deng, YQ; Shi, F;郑黎荣
刊名	SCIENTIFIC REPORTS
	2013
卷号	3 页码:1503
英文摘要	The controllable preparation of nano-gold catalyst maintains a challenge. Except the parameters have been revealed before, here we'd like to show that controllable preparation of active nano-gold catalyst can be achieved using chlorine as an indicator. By tracing the chlorine concentration in the washing step, a series of Au/Fe2O3 catalysts were prepared with co-precipitation method. The applying of these catalysts in CO oxidation and reductive nitrobenzene N-alkylation suggested the active catalysts were prepared from solutions containing similar to 2 ppm chlorine. The catalytic activity dropped dramatically if the chlorine concentration is > 4-6 or << 1 ppm. Extensive characterizations revealed that the active catalyst was composed by nano-gold on the edge of Fe2O3 particle with 8.92 Au-Au coordination numbers. Although the real role of chlorine in the variation of catalyst structure and activity was still ambiguous, the current results should promote the controllable preparation of active nano-Au catalyst.
学科主题	Science & Technology - Other Topics
收录类别	SCI
WOS记录号	WOS:000316317800001
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/224444]
专题	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Zhang, CM,Liu, LQ,Cui, XJ,et al. Chlorine as an Indicator in the Controllable Preparation of Active Nano-Gold Catalyst[J]. SCIENTIFIC REPORTS,2013,3:1503.
APA	Zhang, CM,Liu, LQ,Cui, XJ,Zheng, LR,Deng, YQ,&Shi, F；郑黎荣.(2013).Chlorine as an Indicator in the Controllable Preparation of Active Nano-Gold Catalyst.SCIENTIFIC REPORTS,3,1503.
MLA	Zhang, CM,et al."Chlorine as an Indicator in the Controllable Preparation of Active Nano-Gold Catalyst".SCIENTIFIC REPORTS 3(2013):1503.