通过碳化由偏氯乙烯和丙烯腈悬浮共聚得到的前体,制得碳氮复合材料,将其负载金属镍后即得气相甲醇羰基化反应的催化剂。分别采用扫描电镜(SEM)、氮气吸附、XPS、电子探针(EPMA)等方法对该材料及由其制得的催化剂进行表征,证明该催化剂中的镍呈高度分散的纳米粒子状态。采用固定床反应器对该催化剂进行催化性能测试,结果表明该催化剂在较低金属镍负载量及较温和的条件下即可具有较好的催化性能。该催化剂的最佳镍负载量为1.5%左右。 By carbonizing the precursor obtained by the suspension copolymerization of vinylidene chloride and acrylonitrile, a carbon-nitrogen composite material is prepared, and the metal-carbon catalyst is obtained by carrying out the metal-carbonylation reaction of the carbon-nitrogen composite material after being loaded with the metal nickel. The materials and the catalysts prepared from them were characterized by scanning electron microscopy (SEM), nitrogen adsorption, XPS and EPMA, respectively. The results showed that the nickel in the catalyst showed highly dispersed nanoparticles. The catalytic performance of the catalyst was tested by a fixed bed reactor. The results show that the catalyst has better catalytic performance under the condition of lower nickel metal loading and milder conditions. The optimal nickel loading for this catalyst is around 1.5%.