Tuning the pore structure of mesoporous Co3O4 materials for ethanol oxidation to acetaldehyde
发布时间：2024-12-01
点击次数：
- 影响因子：
- 4.527
- DOI码：
- 10.1016/j.ceramint.2019.08.190
- 所属单位：
- 重庆工商大学
- 教研室：
- 材料科学与工程系
- 发表刊物：
- Ceramics International
- 项目来源：
- 重庆市科技局
- 关键字：
- Soft template method；Mesoporous Co3O4；Ethanol；Selectivity oxidation；Acetaldehyde
- 摘要：
- A one-pot method for preparing mesoporous Co3O4 catalysts via self-assembly method is presented. The physicochemical properties of the corresponding catalysts were studied using XRD, BET, O2-TPD, H2-TPR, HRTEM, and In-situ DRIFT. The results showed that changing the molecular chain length of swelling agents can effectively adjust the pore size, pore volume, and specific surface area, further improving the catalytic performances of the corresponding mesoporous Co3O4 catalyst. Effective control of pore structure and crystal size can ensure the supply of reactive oxygen species. Importantly, large and suitable pore size is beneficial to the desorption of desirable product acetaldehyde, which limits the continued oxidation reaction to obtain high acetaldehyde selectivity. Moreover, it is very meaningful and challenging to selectively oxidize ethanol to acetaldehyde with high selectivity at low temperature in the chemical industry.The ethanol conversion is about 70% at 200 °C, and the acetaldehyde selectivity is up to 98.5% on the Co–He catalyst.
- 第一作者：
- Shuang Chen,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：
- 18
- 页面范围：
- 24609–24617
- 是否译文：
- 否
- 发表时间：
- 2019-12-01
- 收录刊物：
- SCI
附件：