| 超声辅助化学还原法制备高活性Co-B非晶态合金催化剂 |
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| 引用本文： | 王成佐,李辉,陈诵英,李和兴.超声辅助化学还原法制备高活性Co-B非晶态合金催化剂[J].分子催化,2007,21(3):205-208. |
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| 作者姓名： | 王成佐 李辉 陈诵英 李和兴 |
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| 作者单位： | 上海师范大学,化学系,上海,200234 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)
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上海市科委资助项目
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上海市纳米科技专项基金
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上海市重点学科建设项目 |
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| 摘 要： | 采用超声辅助KBH4化学还原Co(OH)2胶体法制备了粒径均匀的Co-B非晶态合金.在乙腈液相选择性加氢制取乙胺反应中,与传统化学还原法制备的Co-B非晶态合金催化剂相比,该催化剂具有很高的催化活性.这归因于其Co活性位的高度分散、Co活性位对氢的强吸附,以及Co-B非晶态合金间强电子相互作用.
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| 关 键 词： | 超声辐射 化学还原法 Co-B非晶态合金 乙腈 液相加氢 |
| 文章编号： | 1001-3555（2007）03-0205-04 |
| 收稿时间： | 2006/9/15 0:00:00 |
| 修稿时间： | 2006-09-152006-10-24 |
Preparation of a Co-B Amorphous Alloy Catalyst for High Activity by Ultrasound-assisted Chemical Reduction Method |
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| WANG Cheng-zuo,LI Hui,CHEN Song-ying,LI He-xing.Preparation of a Co-B Amorphous Alloy Catalyst for High Activity by Ultrasound-assisted Chemical Reduction Method[J].Journal of Molecular Catalysis (China),2007,21(3):205-208. |
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| Authors: | WANG Cheng-zuo LI Hui CHEN Song-ying LI He-xing |
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| Institution: | Department of Chemistry, Shanghai Normal University, Shanghai 200234, China |
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| Abstract: | Uniform Co-B amorphous alloy was prepared by ultrasoundassisted chemical reduction of Co(OH)2 colloid with KBH4.During liquid phase selective hydrogenation of acetonitrile to ethylamine,the as-prepared Co-B catalyst exhibited much higher activity than the regular Co-B obtained by direct reduction of Co2 with KBH4.The excellent activity can be mainly attributed to the well dispersion of Co active sites,the strong adsorption of hydrogen on these Co active sites as well as the strong interaction between metallic Co and alloying B in Co-B amorphous alloy. |
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| Keywords: | Ultrasound irradiation Chemical reduction method CoB amorphous alloy Acetonitrile Liquid phase hydrogenation |
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