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沉淀法制备氧化亚铜颗粒及其在(CH_3)_2SiCl_2单体合成反应中应用
Authors
刘杰
宋莲英
+3 more
王莹利
苏发兵
车红卫
Publication date
1 January 2012
Publisher
Abstract
通过调控沉淀法中样品老化时间制备了粒径0.10~0.15,0.5~1和1~2μm的球状Cu2O催化剂,研究了其粒径对直接合成(CH3)2SiCl2反应性能的影响.结果表明,在所制粒径范围内,催化剂粒径对硅粉转化率影响不大,转化率约为12%;目的产物选择性随催化剂粒径增大而逐渐降低,3种粒径的Cu2O催化剂上(CH3)2SiCl2的选择性分别为86.48%,80.65%和74.31%.对反应前后触体的表征显示,硅粉表面以催化剂颗粒为中心发生了辐射状刻蚀反应,且随催化剂粒径增大,反应积碳量增加
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Institutional Repository of Institute of Process Engineering, CAS (IPE-IR)
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Last time updated on 05/12/2019