| 孙 晓,焦明霞,荆莉红.化学通报,2025,88(5):465-476. |
| 二维纳米材料光催化CO2转化为C2+化学品的研究进展 |
| Research Progress in Photocatalytic Conversion of CO2 to C2+ Chemicals Using Two-Dimensional Nanomaterials |
| 投稿时间：2025-01-19 修订日期：2025-02-19 |
| DOI： |
| 中文关键词: CO2化学转化 二维纳米材料 光催化 碳-碳偶联 |
| 英文关键词:CO2 Chemical conversion, Two-dimensional nanomaterials, Photocatalysis, C-C coupling |
| 基金项目:山东省自然科学基金项目(ZR2023MB057)和中国科学院青年创新促进会项目(Y2022017)资助 |
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| 摘要点击次数: 169 |
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| 中文摘要: |
| 二氧化碳(CO2)的过量排放引发了全球范围的环境及社会问题,因此开发温和高效的CO2资源化转化技术已成为重要的国际前沿课题。受自然光合作用机制的启发,利用可再生光能驱动CO2转化与利用,为合成高附加值碳基化合物提供了可持续的理想途径。然而,CO2分子热力学稳定性高,且其多电子还原反应路径复杂,动力学过程缓慢,这使得CO2化学转化极具挑战性。目前光催化CO2转化生成的产物主要以C1化合物为主,如何提高附加值更高的多碳产物(C2+)的选择性及反应效率,依然是技术突破的关键。二维半导体纳米材料因其较大的比表面积和优异的光电性质,已成为光催化领域的研究热点。通过优化材料的组成和结构,不仅有助于提升C1化合物的生成效率,还为碳-碳偶联反应生成C2+产物提供了新方向。本文系统综述了二维半导体纳米材料的合成方法,并探讨了其在光催化CO2还原制备C2+化合物中的设计原理,以期为构建高效的人工光催化CO2系统提供理论和实验依据。 |
| 英文摘要: |
| The excessive carbon dioxide (CO2) emission has triggered worldwide environmental and social crises, making the development of mild and efficient CO2 resource conversion technologies an important frontier of international research. Inspired by the natural photosynthesis mechanism, utilizing renewable solar energy to drive the conversion and utilization of CO2 offers a sustainable pathway for synthesizing high-value added carbon-based compounds. However, the high thermodynamic stability of CO2 molecules, coupled with the complex multi-electron reduction pathways and slow kinetics, renders the efficient chemical conversion of CO2 challenging. The majority of the products of photocatalytic CO2 conversion are mainly C1 compounds. Improving the selectivity and reaction efficiency for higher-value added multicarbon (C2+) products remains a key technological challenge. Two-dimensional (2D) semiconductor nanomaterials, featured by their large specific surface area and superior photoelectric properties, have emerged as a research project in the photocatalysis field. Optimizing the composition and structure of these materials not only improves the generation efficiency of C1 compound but also opens new avenues for promoting carbon-carbon coupling reactions to produce C2+ products. This review summarizes the synthetic methods of 2D semiconductor nanomaterials and explores their different design principles in the photocatalytic reduction of CO2 to produce C2+ compounds, aiming to provide theoretical and experimental insights for fabricating highly efficient artificial photocatalytic CO2 conversion systems. |
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