以硝酸铜和可溶性淀粉为原料,经过溶胶-凝胶化过程、高温炭化和KOH活化得到炭负载铜催化剂(Cu/C),采用扫描电镜、透射电镜、X射线衍射、热重-差热分析仪、N2吸附和CO程序升温脱附对催化剂结构进行了表征,并考察了它在甲醇氧化羰基化合成碳酸二甲酯(DMC)反应中的催化活性.结果表明,活化温度和KOH用量对催化剂的表面结构及金属铜粒子尺寸影响显著,当活化温度为850℃,KOH:C=l(质量比)时,Cu/C催化剂的比表面积达到1690m2/g,铜纳米粒子平均晶粒尺寸为30.4 nm,催化活性最高,DMC时空收率达到235.7 mg.g-1.h-1,甲醇转化率和DMC选择性分别为1.6％和76.5％.
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