CoAl composite catalysts derived from hydrotalcite-like compounds for CH4 efficient dry reforming
发布时间：2024-11-19
点击次数：
- 影响因子：
- 8.1
- DOI码：
- 10.1016/j.ijhydene.2024.09.078
- 所属单位：
- 环境与资源学院
- 教研室：
- 化学工程系
- 发表刊物：
- International Journal of Hydrogen Energy
- 项目来源：
- 重庆市自然科学基金面上项目
- 关键字：
- Hydrotalcite-like compounds (HTLcs); CoAl composite catalysts; CH4 dry reforming (DRM); Synergistic catalytic effect; Syngas
- 摘要：
- In this study, CoAlx-LDHhydrotalcite-likewas used as the precursors to preparethe CoAlx-LD composite catalysts for the DRMreaction. The transition metal Co was the main catalytic active centers for the DRM reaction. The layered structure of the hydrotalcite-like CoAlx-LDH precursors promoted thehighly dispersed Co0 active centers to be formed in the CoAlx-LD catalysts. In addition, synergistic effects between active sites, basic sites and oxygen vacancies can promote the DRMcatalytic performances of CoAl composite catalysts. Meanwhile, the Co/Al mole ratio can regulate the active sites, basic sites and oxygen vacancies in the catalysts, thereby affecting its catalytic performances. The CoAl12-LD catalyst with a Co/Al mole ratio of 1/2 exhibited excellent DRM catalytic performances.TheCH4 and CO2 conversions on the prepared CoAl12-LD catalyst achieved 86.8% and 53.4% at atmospheric pressure and 700 °C, respectively. In addition, the catalyst alsoshowed excellent use stability in the DRM reaction.
- 第一作者：
- Na Liu
- 合写作者：
- Hongmei Xie,Shuang Chen,Jia Zeng
- 论文类型：
- 源刊论文
- 通讯作者：
- Aiping Jia,Guilin Zhou
- 学科门类：
- 工学
- 文献类型：
- Journal Article
- 卷号：
- 87
- 页面范围：
- 1023–1034
- 是否译文：
- 否
- 发表时间：
- 2024-10-18
- 收录刊物：
- SCI