Active structure of zirconia-supported ruthenium oxide catalyst for low-temperature oxidation of methanol to methyl formate
文献类型：期刊论文
| 作者 | Li Weizhen; Liu Haichao |
| 刊名 | CHINESE JOURNAL OF CATALYSIS
 |
| 出版日期 | 2006-10-01 |
| 卷号 | 27期号:10页码:840-842 |
| 关键词 | Methanol Selective Oxidation Methyl Formate Zirconia Ruthenium Oxide Supported Catalyst Structural Effect |
| ISSN号 | 0253-9837 |
| 英文摘要 | The oxidation of methanol to methyl formate at low temperature (373 K) over the ZrO2-supported RuOx catalyst was studied. The methanol oxidation rate and product selectivity strongly depend on the RuOx structure, which is changed in the Ru surface density range of 0.2-3.8 Ru/nm(2). The RuOx structure evolves from isolated RuO42- species below 0.4 Ru/nm(2) to RuO2 clusters above 1.9 Ru/nm(2). Such structural evolution with increasing Ru surface density leads to a decrease in the methanol oxidation rate on per Ru atom and on per exposed Ru atom (i.e. turnover rate). This reveals that RuO42- species are more reactive than RuO2 species, which is consistent with the higher reducibility of the RuO42- structure. These RuO42- species are also more selective than the RuO2 species for the methyl formate formation at similar methanol conversion; a similar to 96% methyl formate selectivity (at similar to 15% methanol conversion) was attained at 0.2 Ru/nm(2) with predominant RuO42- structure. These findings suggest that the highly active and selective RuO42- structure is required for achieving high methyl formate productivity. |
| 语种 | 英语 |
| WOS记录号 | WOS:000241931800002 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/59917]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Li Weizhen |
| 作者单位 | Peking Univ, Coll Chem & Mol Engn, Beijing Natl Lab Mol Sci,Green Chem Ctr, State Key Lab Struct Chem Unstable & Stable Speci, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li Weizhen,Liu Haichao. Active structure of zirconia-supported ruthenium oxide catalyst for low-temperature oxidation of methanol to methyl formate[J]. CHINESE JOURNAL OF CATALYSIS,2006,27(10):840-842. |
| APA | Li Weizhen,&Liu Haichao.(2006).Active structure of zirconia-supported ruthenium oxide catalyst for low-temperature oxidation of methanol to methyl formate.CHINESE JOURNAL OF CATALYSIS,27(10),840-842. |
| MLA | Li Weizhen,et al."Active structure of zirconia-supported ruthenium oxide catalyst for low-temperature oxidation of methanol to methyl formate".CHINESE JOURNAL OF CATALYSIS 27.10(2006):840-842. |
入库方式： OAI收割
来源：化学研究所
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