燃料化学学报（中英文）2023，Vol.51Issue(9)：1291-1297,7.DOI:10.1016/S1872-5813(23)60352-4
预处理条件对金属有机框架衍生的负载钴催化剂的结构和催化性能的影响
Influence of pretreatment conditions on the structure and catalytic performance of supported cobalt catalysts derived from metal-organic frameworks
摘要
Abstract
Supported cobalt catalysts(Co@C-ZnZrO2 and Co/ZnZrO2)were prepared through a metal-organic frameworks(MOFs)-mediated synthesis strategy.The influence of MOFs pyrolysis on the structure and Fischer-Tropsch synthesis performance of supported cobalt catalysts was investigated.The crystalline phase and microstructure of supported cobalt catalysts were characterized by powder X-ray diffraction(XRD),transmission electron microscopy(TEM),high-resolution TEM(HRTEM),N2 adsorption-desorption and X-ray photoelectron spectroscopy(XPS).The Co/ZnZrO2 showed the CO conversion of 18.1%and the C5 + selectivity of 77.4%,whereas the Co@C-ZnZrO2 exhibited the CO conversion of 8.5%and the C5 + selectivity of 35.2%.The excellent CO conversion for Co/ZnZrO2 was attributed to the more exposure of active Co sites.Meanwhile,the activity of Co sites on Co@C-ZnZrO2 catalyst was restricted by the carbon layer,suppressing the adsorption and activation of syngas on Co sites.关键词
热解/金属有机框架/负载钴催化剂/费托合成Key words
pyrolysis/metal-organic frameworks/supported cobalt catalysts/Fischer-Tropsch synthesis分类
化学引用本文复制引用
孙甲强,郑申棵,陈建刚..预处理条件对金属有机框架衍生的负载钴催化剂的结构和催化性能的影响[J].燃料化学学报（中英文）,2023,51(9):1291-1297,7.基金项目
The project was supported by the National Natural Science Foundation of China(21503256,22072175),"Strategic Priority Research Program"of the Chinese Academy of Sciences(XDA21021000),Sanju Environmental Protection New Material Company and the Research Foundation of Huanggang Normal University(2042020026). （21503256,22072175）
