Photocatalytic oxidation of methanol to methyl formate in liquid phase over supported silver catalysts
Photocatalytic oxidation of methanol to methyl formate in liquid phase over supported silver catalysts
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DOI：
10.1016/j.catcom.2013.10.010
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发表时间：
2014-01
影响因子：
3.7
通讯作者：
Xuzhuang Yang;Aiwen Zhang;G. Gao;Dan Han;Chenhui Han;Jie Wang;H. Lu;Jie Liu;Min Tong
中科院分区：
文献类型：
--
作者：
Xuzhuang Yang;Aiwen Zhang;G. Gao;Dan Han;Chenhui Han;Jie Wang;H. Lu;Jie Liu;Min Tong
研究了负载型银催化剂在紫外光照射下液相氧气选择氧化甲醇制甲酸甲酯的反应。该催化剂在甲酸甲酯合成反应中表现出良好的催化性能。P25上的银纳米粒子通过去除二氧化钛表面的光激发电子，延长空穴-电子寿命，促进了反应的进行。二氧化硅上的银纳米粒子的表面等离子体共振（SPR）是甲酸甲酯形成的原因。紫外光本身对甲酸甲酯的生成有一定的促进作用。
The selective oxidation of methanol to methyl formate by oxygen in the liquid phase under UV irradiation was investigated on supported silver catalysts. The catalysts exhibited high performance in the formation of methyl formate. The silver nanoparticles on P25 promoted the reaction through removing the photoexcited electrons from the surface of titania to extend the hole–electron lifetime. The surface plasma resonance (SPR) of the silver nanoparticles on silica was responsible for the formation of methyl formate. UV light itself was slightly active to the formation of methyl formate.