将催化单元纳入纳米材料:用于CO2的多用途催化剂的合理设计 价值化
Li-Qi Qiu1, Hong-Ru Li1,2, Liang-Nian He1,3
1State Key Laboratory and Institute of Elemento-Organic Chemistry, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, China.
Accounts of chemical research
|August 3, 2023
概括
这项研究开发了基于纳米材料的先进催化剂,以有效地将二氧化碳 (CO2) 转化为有价值的化学物质. 这些催化剂整合了二氧化碳的捕获和转化,为二氧化碳利用和减排提供了稳定和选择性的解决方案.
科学领域:
- 材料科学与工程 材料科学与工程
- 催化剂是一种催化剂.
- 化学工程是化学工程的重要组成部分.
背景情况:
- 二氧化碳 (CO2) 的转化对于减少排放和生产有价值的化学品至关重要.
- 现有的二氧化碳转化方法面临着热力学稳定性和运动惰性的挑战.
- 整合二氧化碳捕获和转化 (现场转化) 是一个有前途的方法.
研究的目的:
- 通过将分子催化剂固定在纳米材料上或设计具有内在催化位点的纳米材料,开发用于高效二氧化碳转换的异质催化剂.
- 探索热催化和光催化/电催化二氧化碳转化策略.
- 为了提高催化剂的稳定性,效率和选择性,用于二氧化碳的利用.
主要方法:
- 开发基于碳和金属有机框架 (MOF) 的催化剂,用于热催化CO2转化.
- 以纳米材料为基础的催化剂的设计,将活性金属复合物纳入聚合物 (POP,MOL,导电聚合物),用于光催化 CO2 减少 (PCO2RR) 和电催化 CO2 减少 (ECO2RR).
- 利用诸如分子催化剂的固定化,设计具有内在催化位点的纳米材料以及创建混合光/电催化剂等技术.
主要成果:
- 成功合成并应用基于Cu和Zn的MOF和碳支持的Cu催化剂,用于循环添加,碳氧化和碳氧化循环反应.
- 经过证明的二氧化碳捕获和现场转化,使用N-化碳支持的 Zn 复合物和 MOF 材料.
- 开发出实现高效PCO2RR和ECO2RR的混合光/电催化剂,包括对联的二氧化碳和5-基甲 (HMF) 的电解,以产生2,5-基碳酸 (FDCA).
结论:
- 基于纳米材料的催化剂在二氧化碳转化过程中提供了高稳定性,卓越的效率和形状选择性.
- 混合光电催化剂显示出可持续二氧化碳利用的巨大潜力.
- 这项工作提供了有效的二氧化碳捕获和转化策略,有助于减排和化学生产.
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