Preparation of K-Co-Mo-C catalyst and its catalytic performance for mixed alcohol synthesis
文献类型：期刊论文
| 作者 | Li, CL; He, YL; Liu, ZM |
| 刊名 | chinese journal of catalysis
 |
| 出版日期 | 2006-05-01 |
| 卷号 | 27期号:5页码:409-415 |
| 关键词 | potassium cobalt molybdenum carbon syngas mixed alcohol |
| 英文摘要 | a k-co-mo-c catalyst with remnant carbon was prepared by the sol-gel method. the carbon content was adjusted by adding different amounts of carbon precursor. catalytic behavior of mixed alcohols synthesis from syngas was investigated over the catalysts. by combining different characterization techniques, such as x-ray diffraction, thermo-gravimetric analysis, n-2 adsorption isotherms method, and temperature-programmed desorption of hydrogen, it was revealed that the presence of appropriate content of remnant carbon increased the dispersion of active phase and improved the yield and selectivity for alcohol. for the catalysts with superfluous remnant carbon, the selectivity for alcohol decreased and the selectivity for hydrocarbon increased, which might be due to the fact that with the increase of amount of carbon precursors, mo species was readily reduced to the metallic state. for the sample calcined in air, the metal oxide precursors were easily aggregated to irreducible compound, so the activity for alcohol synthesis was low. the sample with 2.8% carbon had the largest surface area and pore volume, and showed the highest activity for alcohol synthesis. calcining sample at higher temperature in inert atmosphere also caused the activity for alcohol synthesis to decrease obviously, but the selectivity for c-2 divided by alcohols increased markedly. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, applied ; chemistry, physical ; engineering, chemical |
| 研究领域[WOS] | chemistry ; engineering |
| 关键词[WOS] | molybdenum ; co-h2 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000238200000010 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/140340]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | Chinese Acad Sci, Dalian Inst Chem Phys, Lab Nat Gas Utilizat & Appl Catalysis, Dalian 116023, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, CL,He, YL,Liu, ZM. Preparation of K-Co-Mo-C catalyst and its catalytic performance for mixed alcohol synthesis[J]. chinese journal of catalysis,2006,27(5):409-415. |
| APA | Li, CL,He, YL,&Liu, ZM.(2006).Preparation of K-Co-Mo-C catalyst and its catalytic performance for mixed alcohol synthesis.chinese journal of catalysis,27(5),409-415. |
| MLA | Li, CL,et al."Preparation of K-Co-Mo-C catalyst and its catalytic performance for mixed alcohol synthesis".chinese journal of catalysis 27.5(2006):409-415. |
入库方式： OAI收割
来源：大连化学物理研究所
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