CO2 hydrogenation on Co/CeO2-δ catalyst: Morphology effect from CeO2 support
发布时间：2024-12-01
点击次数：
- 影响因子：
- 7.139
- DOI码：
- 10.1016/j.ijhydene.2020.05.260
- 所属单位：
- 重庆工商大学
- 教研室：
- 化学工程系
- 发表刊物：
- International Journal of Hydrogen Energy
- 项目来源：
- 重庆市科技局
- 关键字：
- Co/CeO2-d catalyst；Morphology structure；Oxygen vacancy；CO2 catalytic hydrogenation
- 摘要：
- The Co/CeO2-δ catalysts with different morphology structure were prepared for CO2 catalytic hydrogenation reaction. The physical and chemical properties of these catalysts were characterized by H2-TPR, XRD, TEM, ICP and H2-TPD. The characterization results indicated that the different morphology structure of CeO2 support obviously influence the exposed crystal plane, and then affect the concentration of oxygen vacancies, the metal-support interaction and the dispersion of Co0 active species on the CeO2 support. In addition, the Co ions can be dissolved into the CeO2 lattice to form Ce–O–Co solid solution, which promotes the formation of Co0 active species, oxygen vacancies, and the Ce3+-□-Co0 structure, thus significantly affects the CO2 hydrogenation performance of Co/CeO2-δ catalysts. The exposed {110} and {100} crystal plane of CoCe140 catalyst with nano-rods structure ensure the excellent CO2 hydrogenation performance, including CO2 conversion is 48.7%, the CH4 and CO selectivity are 91.7% and 8.3%, respectively.
- 第一作者：
- Shiyu Xu,Fengqiong Xie
- 合写作者：
- Lidan Deng,Hongmei Xie
- 论文类型：
- 源刊论文
- 通讯作者：
- Guilin Zhou
- 学科门类：
- 工学
- 文献类型：
- Journal Article
- 卷号：
- 45
- 期号：
- 51
- 页面范围：
- 26938–26952
- 是否译文：
- 否
- 发表时间：
- 2020-10-01
- 收录刊物：
- SCI