Activated carbon supported bimetallic CoMo carbides synthesized by carbothermal hydrogen reduction
文献类型：期刊论文
| 作者 | Liang, CH; Ma, WP; Feng, ZC; Li, C |
| 刊名 | carbon
 |
| 出版日期 | 2003 |
| 卷号 | 41期号:9页码:1833-1839 |
| 关键词 | activated carbon heat treatment mass spectrometry impregnation x-ray diffraction |
| 产权排序 | 1;1 |
| 英文摘要 | a carbothermal hydrogen reduction method was employed for the preparation of activated carbon supported bimetallic carbide. the resultant samples were characterized by bet surface area measurement, x-ray diffraction, and temperature-programmed reduction-mass spectroscopy. the results showed that nanostructured beta-mo2c can be formed on the activated carbon by carbothermal hydrogen reduction above 700 degreesc. the particle sizes of beta-mo2c increase with increasing reaction temperatures and mo loading. the bimetallic como carbide can be synthesized by the carbothermal hydrogen reduction even around 600 degreesc. the bimetallic como carbide is from carbothermal hydrogen reduction of comoo4 precursor and is easily formed when the co/mo molar ratio is 1.0. separation of the bimetallic como carbide phase into mo carbide and co metal occurs when the temperature of the reduction is above 700 degreesc. the addition of a second metal such as co and ni, decreases the formation temperature of carbide because the second metal promotes formation of chx species from reactive carbon atoms or groups on carbon material and hydrogen, which further carburizes oxide precursors. (c) 2003 elsevier science ltd. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, physical ; materials science, multidisciplinary |
| 研究领域[WOS] | chemistry ; materials science |
| 关键词[WOS] | transition-metal carbides ; surface-area ; catalytic properties ; silicon-carbide ; molybdenum ; tungsten ; bulk |
| 收录类别 | SCI |
| 原文出处 | true |
| 语种 | 英语 |
| WOS记录号 | WOS:000183818100016 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/82903]  |
| 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, State Key Lab Catalysis, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liang, CH,Ma, WP,Feng, ZC,et al. Activated carbon supported bimetallic CoMo carbides synthesized by carbothermal hydrogen reduction[J]. carbon,2003,41(9):1833-1839. |
| APA | Liang, CH,Ma, WP,Feng, ZC,&Li, C.(2003).Activated carbon supported bimetallic CoMo carbides synthesized by carbothermal hydrogen reduction.carbon,41(9),1833-1839. |
| MLA | Liang, CH,et al."Activated carbon supported bimetallic CoMo carbides synthesized by carbothermal hydrogen reduction".carbon 41.9(2003):1833-1839. |
入库方式： OAI收割
来源：大连化学物理研究所
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