碳酸二甲酯
甲醇
傅里叶变换红外光谱
碳酸盐
催化作用
纳米棒
原位
二氧化碳
化学
红外线的
八面体
红外光谱学
齿合度
无机化学
材料科学
化学工程
晶体结构
结晶学
纳米技术
有机化学
工程类
物理
光学
作者
Shuyang Zhao,Shengping Wang,Yujun Zhao,Xinbin Ma
标识
DOI:10.1016/j.cclet.2016.06.003
摘要
The mechanism of dimethyl carbonate (DMC) formation from CO2 and methanol is investigated using three well-shaped CeO2 catalysts, nanorod, nanocube and octahedron, which are packed with different crystal planes. In situ Fourier Transform Infrared Spectroscopy (FTIR) is employed to probe each reaction step in the DMC synthesis. The number of OH groups and the species of CO2 adsorptions on ceria surface have significant influence on the activity of ceria with different morphologies. Rod-ceria has favorable catalytic activity because of the large amount of OH groups and the formation of bidentate carbonate species.
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