高效且持久的甲光催化氧化合的连续流系统
Yihong Chen1,2, Yuan Zhao1,3, Dong Liu1,2
1Hefei National Research Center for Physical Sciences at the Microscale, Collaborative Innovative Center of Chemistry for Energy Materials (iChEM), School of Chemistry and Materials Science, National Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, and Center for Micro- and Nanoscale Research and Fabrication, University of Science and Technology of China, Hefei 230026, China.
Journal of the American Chemical Society
|January 17, 2024
概括
本研究提出了使用新型Au/TiO2催化剂进行光催化氧化合 (OCM) 的高效连续流系统. 它实现了高甲转化和有价值的化学物质的选择性,同时防止过度氧化.
科学领域:
- 催化剂
- 绿色化学
- 材料科学
背景情况:
- 甲的光催化氧化合 (OCM) 是生产工业化学品的有希望的绿色途径.
- 目前的OCM方法面临着低甲转化和过氧化的挑战.
研究的目的:
- 为光催化OCM开发一个高效的连续气流系统.
- 抑制过度氧化并增强甲转化和选择性.
主要方法:
- 设计了一个连续气流系统和一个3D打印反应堆.
- 使用设计的Au/TiO2光催化剂.
- 具有协同作用的中等活性氧物种,表面等离子体共振和多点气体吸收.
主要成果:
- 达到了218.2μmol h-1的甲转化率.
- 获得对C2+碳化合物的高选择性 (∼90%).
- 在240小时内表现出显著的稳定性.
结论:
- 开发的流量系统有效地解决了OCM瓶.
- 反应器和光催化剂的协同设计是高性能的关键.
- 这种方法为先进的光催化OCM系统提供了可行的概念.
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