| Effects of metal promotion on cumgfe catalysts derived from layered double hydroxides for higher alcohol synthesis via syngas | |
| Han, Xinyou1,2; Fang, Kegong1; Sun, Yuhan1,3 | |
| 刊名 | Rsc advances
 |
| 2015 | |
| 卷号 | 5期号:64页码:51868-51874 |
| ISSN号 | 2046-2069 |
| DOI | 10.1039/c5ra05846e |
| 通讯作者 | Fang, kegong(kgfang@sxicc.ac.cn) |
| 英文摘要 | Cu-mg-fe-m-o (m = mn, zr, and ce) catalysts derived from layered double hydroxides (ldhs) precursors were prepared using a co-precipitation method and tested for higher alcohol synthesis (has) via carbon monoxide hydrogenation. the catalysts were subsequently characterized by n-2-physisorption, x-ray diffraction (xrd), transmission electron microscopy (tem), x-ray photoelectron spectroscopy (xps) and h-2 temperature-programed reduction (h-2-tpr). the results show that mn, zr, and ce promoters mainly contribute to the formation of tetrahedrally coordinated copper species, which favor the enhancement of the total alcohol selectivity. the addition of mn facilitates the interaction between cu and fe, which causes the total alcohol selectivity and c2+ alcohol content in the total alcohols increased from 9.82% and 68.85% to 15.1% and 73.14%, respectively. however, the addition of zr and ce weakens the cu-fe interaction but increases the possibility of contact between cu and fe. as a consequence, the total alcohol selectivity is enhanced, while the c2+ alcohol content in the total alcohols is reduced upon zr and ce addition. based on the characterization and catalytic results of the catalysts, a triple-active-site model is proposed to explain the different promoting effects of the three additives. |
| WOS关键词 | ZNO NANOWIRE/TUBE CATALYSTS ; BIMODAL PORE CATALYST ; MIXED ALCOHOLS ; CO HYDROGENATION ; CU-ZNO ; PERFORMANCE ; OXIDES ; ADSORPTION ; CONVERSION ; H-2 |
| WOS研究方向 | Chemistry |
| WOS类目 | Chemistry, Multidisciplinary |
| 语种 | 英语 |
| 出版者 | ROYAL SOC CHEMISTRY |
| WOS记录号 | WOS:000356305300050 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2376453 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Fang, Kegong |
| 作者单位 | 1.Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Shanxi, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 3.Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai 201203, Peoples R China |
| 推荐引用方式 GB/T 7714 | Han, Xinyou,Fang, Kegong,Sun, Yuhan. Effects of metal promotion on cumgfe catalysts derived from layered double hydroxides for higher alcohol synthesis via syngas[J]. Rsc advances,2015,5(64):51868-51874. |
| APA | Han, Xinyou,Fang, Kegong,&Sun, Yuhan.(2015).Effects of metal promotion on cumgfe catalysts derived from layered double hydroxides for higher alcohol synthesis via syngas.Rsc advances,5(64),51868-51874. |
| MLA | Han, Xinyou,et al."Effects of metal promotion on cumgfe catalysts derived from layered double hydroxides for higher alcohol synthesis via syngas".Rsc advances 5.64(2015):51868-51874. |
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