Effect of zn and mn promoters on copper-iron based catalysts for higher alcohol synthesis
文献类型：期刊论文
| 作者 | Lin Ming-Gui1,2; Fang Ke-Gong1; Li De-Bao1; Sun Yu-Han1 |
| 刊名 | Acta physico-chimica sinica
 |
| 出版日期 | 2008-05-01 |
| 卷号 | 24期号:5页码:833-838 |
| 关键词 | Higher alcohol synthesis Cufe catalyst Zinc promoter Manganese promoter Synergistic effect |
| ISSN号 | 1000-6818 |
| DOI | 10.3866/pku.whxb20080517 |
| 通讯作者 | Sun yu-han(yhsun@sxicc.ac.cn) |
| 英文摘要 | The influences of zinc and manganese promoters on the structure and reaction behavior of cufe catalyst for higher alcohol synthesis were investigated by n-2 adsorption, x-ray diffraction (xrd), h-2 temperature-programmed reduction (h-2-tpr), in situ diffuse reflectance infrared spectroscopy (drift) and co+h-2 reaction. it was found that the zinc additive suppressed the dispersion of active phases but improved their activation ability towards co molecule due to the formation of a new spinel phase, znfe2o4. the presence of manganese showed a more favorable effect on the dispersion of active phases and then promoted the synergistic effect between copper and iron although the adsorption tendency towards co declined due to the dilution effect of manganese. compared with binary cufe catalyst, cuznfe catalyst had a higher activity with the decreasing of c-2+oh selectivity, and cufemn catalyst showed improved total alcohol selectivity although both co conversion and c-2+oh selectivity decreased. the results of the doubly promoted cufe catalyst evidently indicated the existence of synergistic effect between zinc and manganese, which modified the texture parameters, decreased the reduction temperature of cu and altered the reduction behavior of fe. more importantly, the abundance of co adsorption on the cufe catalyst was greatly increased due to the co-addition of zinc and manganese. therefore, the overall catalytic performance of doubly promoted cufe catalyst was superior to that of the single promoted cufe catalyst. |
| WOS关键词 | TEMPERATURE-PROGRAMMED REDUCTION ; MANGANESE OXIDE CATALYSTS ; FISCHER-TROPSCH SYNTHESIS ; METHANOL SYNTHESIS ; SPECTROSCOPY ; ADSORPTION |
| WOS研究方向 | Chemistry |
| WOS类目 | Chemistry, Physical |
| 语种 | 英语 |
| WOS记录号 | WOS:000255995000017 |
| 出版者 | PEKING UNIV PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2385590 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Sun Yu-Han |
| 作者单位 | 1.Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lin Ming-Gui,Fang Ke-Gong,Li De-Bao,et al. Effect of zn and mn promoters on copper-iron based catalysts for higher alcohol synthesis[J]. Acta physico-chimica sinica,2008,24(5):833-838. |
| APA | Lin Ming-Gui,Fang Ke-Gong,Li De-Bao,&Sun Yu-Han.(2008).Effect of zn and mn promoters on copper-iron based catalysts for higher alcohol synthesis.Acta physico-chimica sinica,24(5),833-838. |
| MLA | Lin Ming-Gui,et al."Effect of zn and mn promoters on copper-iron based catalysts for higher alcohol synthesis".Acta physico-chimica sinica 24.5(2008):833-838. |
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来源：中国科学院大学
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