Novel fabrication of copper oxides on AC and its enhanced catalytic performance on oxidative carbonylation of methanol

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• 作者：Ke Shi ; Shou-Ying Huang ; ^{huangsy@tju.edu.cn} ; Zhong-Yao Zhang ; Sheng-Ping Wang ; Xin-Bin Ma
• 关键词：Dimethyl carbonate ; Oxidative carbonylation ; Copper oxides ; Vapor-phase methanol reduction ; Activated carbon
• 刊名：Chinese Chemical Letters
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：28
• 期：1
• 页码：70-74
• 全文大小：1094 K
• 卷排序：28

文摘

Copper oxides (CuOx) nanoparticles dispersed on activated carbon (AC) were prepared by using vapor-phase methanol as the reducing agent. The CuOx/AC as prepared exhibited an enhanced catalytic activity in oxidative carbonylation of methanol to dimethyl carbonate (DMC). The catalytic performance was significantly influenced by reduction conditions including temperature and time. With the similar selectivity of DMC, the space time yield (STY) under optimal reduction conditions reached up to 408 mg g−1 h−1, which is superior to conventional methods such as thermolysis and solvothermal reduction. Based on the characterization results of XRD, TEM and XPS, the good copper dispersion and high Cu+ content obtained by vapor-phase methanol reduction were mainly responsible for the high catalytic activity.