| Ferric hydroxide supported gold subnano clusters or quantum dots: enhanced catalytic performance in chemoselective hydrogenation | |
| Department | 绿色化学与催化研发中心 |
Liu LQ(刘乐全); Qiao BT(乔波涛); Ma YB(马昱博); Zhang J(张娟); Deng YQ(邓友全)
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| 2008 | |
| Source Publication | Dalton Trans.
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| ISSN | 1477-9226 |
| Pages | 2542-2548 |
| Abstract | 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. |
| Subject Area | 物理化学 |
| Funding Organization | the National Sciences Foundation of China (No. 20773146) |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 绿色催化课题 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/3643 |
| Collection | 绿色化学研究发展中心 |
| Corresponding Author | Deng YQ(邓友全) |
| Recommended Citation GB/T 7714 | Liu LQ,Qiao BT,Ma YB,et al. Ferric hydroxide supported gold subnano clusters or quantum dots: enhanced catalytic performance in chemoselective hydrogenation[J]. Dalton Trans.,2008:2542-2548. |
| APA | 刘乐全,乔波涛,马昱博,张娟,&邓友全.(2008).Ferric hydroxide supported gold subnano clusters or quantum dots: enhanced catalytic performance in chemoselective hydrogenation.Dalton Trans.,2542-2548. |
| MLA | 刘乐全,et al."Ferric hydroxide supported gold subnano clusters or quantum dots: enhanced catalytic performance in chemoselective hydrogenation".Dalton Trans. (2008):2542-2548. |
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| 刘乐全Dalton.PDF（175KB） | 开放获取 | License | View Application Full Text | |||
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