Ferric hydroxide supported gold subnano clusters or quantum dots: enhanced catalytic performance in chemoselective hydrogenation

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	Ferric hydroxide supported gold subnano clusters or quantum dots: enhanced catalytic performance in chemoselective hydrogenation
	Deng YQ(邓友全); Deng YQ(邓友全)
刊名	Dalton Trans.
	2008
页码	2542-2548
ISSN号	1477-9226
通讯作者	邓友全
中文摘要	An attempt to prepare ferric hydroxide supported Au subnano clusters via modified co-precipitation without any calcination was made. High resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) have been employed to study the structure and chemical states of these catalysts. No Au species could be observed in the HRTEM image nor from the XRD pattern, suggesting that the sizes of the Au species in and on the ferric hydroxide support were less than or around 1 nm. Chemoselective hydrogenation of aromatic nitro compounds and a,b-unsaturated aldehydes was selected as a probe reaction to examine the catalytic properties of this catalyst. Under the same reaction conditions, such as 100 ◦C and1MPaH2 in the hydrogenation of aromatic nitro compounds, a 96–99% conversion (except for 4-nitrobenzonitrile) with 99% selectivity was obtained over the ferric hydroxide supported Au catalyst, and the TOF values were 2–6 times higher than that of the corresponding ferric oxide supported catalyst with 3–5 nm size Au particles. For further evaluation of this Au catalyst in the hydrogenation of citral and cinnamaldehyde, selectivity towards unsaturated alcohols was 2–20 times higher than that of the corresponding ferric oxide Au catalyst.
学科主题	物理化学
收录类别	SCI
资助信息	the National Sciences Foundation of China (No. 20773146)
语种	英语
WOS记录号	WOS:000255445900006
公开日期	2013-08-19
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/3643]
专题	兰州化学物理研究所_绿色化学研究发展中心
通讯作者	Deng YQ(邓友全); Deng YQ(邓友全)
推荐引用方式 GB/T 7714	Deng YQ,Deng YQ. Ferric hydroxide supported gold subnano clusters or quantum dots: enhanced catalytic performance in chemoselective hydrogenation[J]. Dalton Trans.,2008:2542-2548.
APA	邓友全,&邓友全.(2008).Ferric hydroxide supported gold subnano clusters or quantum dots: enhanced catalytic performance in chemoselective hydrogenation.Dalton Trans.,2542-2548.
MLA	邓友全,et al."Ferric hydroxide supported gold subnano clusters or quantum dots: enhanced catalytic performance in chemoselective hydrogenation".Dalton Trans. (2008):2542-2548.