Fe-(μ-O) -Zn双原子增强C-C合用于直接氧化甲到酸使用O2
Baiyang Yu1,2, Wenlong Li3, Xuan Tang3
1Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu, China.
Nature communications
|October 28, 2025
概括
研究人员在ZSM-5上开发了Fe-Zn双原子位点,用于直接氧化甲. 这个过程有效地将甲转化为酸,在室温和压力下使用氧气,推进可持续的化学生产.
科学领域:
- 催化剂是一种催化剂.
- 材料科学 材料科学 材料科学
- 绿色化学 绿色化学
背景情况:
- 甲的直接氧化 (DOM) 对于生产清洁能源和化学品至关重要.
- 挑战包括困难的C-H激活和不受控制的C-C合.
- 现有的方法通常需要恶劣的条件,限制可持续性.
研究的目的:
- 为高效的DOM设计和建造新的双原子站点.
- 在环境条件下将甲选择性氧化为酸.
- 阐明甲转化的催化机制.
主要方法:
- 在ZSM-5 (Fe1-Zn1/ZSM-5) 支持的Fe-(μ-O) -Zn双原子位点的合成.
- 催化剂结构和电子性能的表征.
- 在25°C和大气压下使用分子氧气对直接甲氧化的催化剂性能进行测试.
主要成果:
- 实现了高酸生产率 (3006 μmol•gcat−1•h−1) 具有86.8%的选择性.
- 总C2+产品的选择性达到93.0%,性能稳定超过20小时.
- 通过Fe=O物种和双原子位点促进的高效C-C合证明了增强的C-H激活.
结论:
- 在温和的条件下,Fe-Zn双原子位点有效催化直接甲氧化为酸.
- 铁和之间的相互电子调制是促进催化活性的关键.
- 这种方法为可持续的甲价值化提供了一个有希望的途径.
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