文献类型：期刊文献

中文题名：ZnGaMnO_(x)/SAPO-34的制备及催化CO_(2)性能研究

英文题名：Preparation and catalytic CO_(2)performance of ZnGaMnO_(x)/SAPO-34

作者：李一梅[1];许海涛[1]

机构：[1]华东理工大学化工学院,上海200237

年份：2024

卷号：53

期号：1

起止页码：21

中文期刊名：应用化工

外文期刊名：Applied Chemical Industry

收录：CSTPCD;;北大核心:【北大核心2023】；CSCD:【CSCD_E2023_2024】；

基金：国家自然科学基金(21371058)。

语种：中文

中文关键词：双功能催化剂;CO_(2);低碳烯烃;SAPO-34

外文关键词：bifunctional catalyst;CO_(2);lower olefins;SAPO-34

摘要：采用溶胶-凝胶法制备了不同Zn/Ga/Mn摩尔比的ZnGaMnO_(x),通过种子辅助法合成尺寸约为250 nm,分散程度好的SAPO-34纳米晶。将ZnGaMnO_(x)和SAPO-34物理研磨组成ZnGaMnO_(x)/SAPO-34双功能催化剂,考察了其CO_(2)加氢性能,探究了氧化物制备方法和Zn/Ga/Mn 3种元素的摩尔比对ZnGaMnO_(x)/SAPO-34催化性能的影响。结果表明,当Zn/Ga/Mn=5∶14∶6时,ZnGaMnO_(x)/SAPO-34的CO_(2)转化率为17.1%,CO选择性为67.7%,低碳烯烃选择性为66.2%。
ZnGaMnO_(x)With different Zn/Ga/Mn molar ratios were prepared by the sol-gel method,and SAPO-34 nanocrystals with a size of about 250 nm and good dispersion were synthesized by the seed-assisted method.The ZnGaMnO_(x)/SAPO-34 bifunctional catalysts were physically milled to form ZnGaMnO_(x)/SAPO-34,and their CO_(2)hydrogenation performance was investigated.The effects of the oxide preparation method and the molar ratio of the three elements Zn/Ga/Mn on the catalytic performance of ZnGaMnO_(x)/SAPO-34 were investigated.The result showed that when Zn/Ga/Mn=5∶14∶6,the CO_(2)conversion of ZnGaMnO_(x)/SAPO-34 was 17.1%,the CO selectivity was 67.7%and the lower olefin selectivity was 66.2%.