采用金属Na对SiO2进行预处理,之后用浸渍法制备Cu-ZnO/Na-SiO2催化剂.研究了Na的加入方式和含量对催化剂的结构和性能的影响,采用XRD和TPR等测试技术对催化剂进行表征.结果表明,与未经Na预处理SiO2制备的Cu-ZnO-Na/SiO2催化剂对比,Na的加入提高了Cu物种的分散度,并增强了Cu物种与载体的相互作用.通过调节Na的加入量可获得性能较佳的仲丁醇脱氢催化剂.
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