Effect of Metal Additives on Structure and Properties of a Co/SiO2 Hydrogenation Catalyst
文献类型：期刊论文
| 作者 | Xue JJ(薛晶晶)1,2; Cui F(崔芳)1 ; Huang ZW(黄志威)1; Zuo JL(左建良)1,2; Chen J(陈静)1; Xia CG(夏春谷)1; Chen J(陈静); Xia CG(夏春谷); Xia CG(夏春谷); Chen J(陈静)
|
| 刊名 | Chinese Journal of Catalysis
 |
| 出版日期 | 2012 |
| 卷号 | 33期号:10页码:1642-1649 |
| 关键词 | cobalt metal additive structure ethyl lactate hydrogenation |
| ISSN号 | 0253-9837 |
| 通讯作者 | 陈静 ; 夏春谷 |
| 中文摘要 | 通过考察 Co/SiO2 催化剂中活性组分的结构变化及其催化乳酸酯液相氢化反应结果, 来研究第二金属添加物对催化剂结构及其催化性能的影响. 结果表明, 随着金属添加物的加入双金属催化剂中金属 Co 的表面电子性质以及分散度不断变化, 而 Co 物种颗粒粒径不断减小, 因此 Co 物种和载体 SiO2 间相互作用不断增强, 从而降低 Co 还原度. 乳酸酯氢化反应结果表明, 催化剂中活性组分的颗粒大小及其比表面积以及 Co 物种的还原度和分散度均影响其氢化反应的活性. |
| 英文摘要 | The effects of metal additives (Zn, Fe, Cu, and Sn) on the properties and catalytic performance of a Co/SiO2 catalyst (prepared by a co-precipitation method) in the liquid-phase hydrogenation of ethyl lactate were investigated. The electronic properties and surface distribution of Co in the catalyst were significantly changed by incorporation of the additives. The particle size of the cobalt species was reduced, which strengthened the interaction between the cobalt particles and the silica support and decreased the reducibility of the catalyst. As a consequence, both ethyl lactate conversion and 1,2-propanediol selectivity decreased upon incorporation of the additives. Ethyl lactate conversion was related less to the size and surface area of the catalyst particles than to the distribution of the cobalt species and the reducibility of the catalyst. |
| 学科主题 | 物理化学与绿色催化 |
| 收录类别 | SCI |
| 资助信息 | the National Natural Science Foundation of China (21133011) |
| 语种 | 英语 |
| WOS记录号 | WOS:000310037500005 |
| 公开日期 | 2013-10-11 |
| 源URL | [http://210.77.64.217/handle/362003/3906]  |
| 专题 | 兰州化学物理研究所_OSSO国家重点实验室 |
| 通讯作者 | Chen J(陈静); Xia CG(夏春谷); Xia CG(夏春谷); Chen J(陈静); Chen J(陈静); Chen J(陈静); Chen J(陈静) |
| 作者单位 | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Gansu, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xue JJ,Cui F,Huang ZW,et al. Effect of Metal Additives on Structure and Properties of a Co/SiO2 Hydrogenation Catalyst[J]. Chinese Journal of Catalysis,2012,33(10):1642-1649. |
| APA | Xue JJ.,Cui F.,Huang ZW.,Zuo JL.,Chen J.,...&陈静.(2012).Effect of Metal Additives on Structure and Properties of a Co/SiO2 Hydrogenation Catalyst.Chinese Journal of Catalysis,33(10),1642-1649. |
| MLA | Xue JJ,et al."Effect of Metal Additives on Structure and Properties of a Co/SiO2 Hydrogenation Catalyst".Chinese Journal of Catalysis 33.10(2012):1642-1649. |
入库方式： OAI收割
来源：兰州化学物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。