Porous Co-based spinel oxide prepared by soft-template method for ethanol oxidation
发布时间：2024-12-01
点击次数：
- 影响因子：
- 3.995
- 所属单位：
- 重庆工商大学
- 教研室：
- 化学工程系
- 发表刊物：
- Journal of Physics and Chemistry of Solids
- 项目来源：
- 重庆工商大学，重庆市科技局
- 关键字：
- Spinel composite oxide；Soft template method；Porous structure；Reactive oxygen species；Catalytic complete oxidation；VOCs
- 摘要：
- The porous Co-based spinel composite oxides containing different transition metals (Cu, Fe, Ni, Mn, and Ce) were prepared by soft-template method for ethanol complete oxidation in air. The physicochemical properties of the prepared oxides were characterized by XRD, BET, H2-TPR, and O2-TPD. The results indicate that the transition metal ions can be dissolved into the Co3O4 lattice to form Co-based spinel oxide, which promote surface reactive oxygen species to be formed on the corresponding catalyst. The prepared Co-based spinel oxides have developed pore structure, and the specific surface area is larger than 80 m2·g−1, even up to 132 m2·g−1. The porous structure and high specific surface area can be traced back to the used soft-template reagent, and the pore size distribution and specific surface area can also be affected by the used transition metals. The synergistic effect from porous structure and surface reactive oxygen species can effectively promote ethanol oxidation to final product CO2. The porous Co-based spinel oxide containing Ce exhibits superior ethanol catalytic oxidation activity and high stability, the ethanol catalytic oxidation conversion and oxidation final product CO2 selectivity reached 99.7% and 99.1% at 200 °C, respectively. The results indicated that the porous Co-based spinel oxide catalyst has potential application value in ethanol oxidation elimination from air.
- 第一作者：
- Hongmei Xie,Xiao Tan
- 合写作者：
- Guizhi Zhang,Jianmin Ren,Weiwei Guo,Xuecheng Liu
- 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：
- 146
- 页面范围：
- 109562
- 是否译文：
- 否
- 发表时间：
- 2020-11-01
- 收录刊物：
- SCI