全面洞察活性位点的构建以引导光催化二氧化碳转化,Advanced Functional Materials

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全面洞察活性位点的构建以引导光催化二氧化碳转化
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2023-12-21 , DOI: 10.1002/adfm.202312056
Wa Gao _{1,

2} , Haoqing Chi ₂ , Yujie Xiong ₃ , Jinhua Ye ₄ , Zhigang Zou _{2,

5} , Yong Zhou _{2,

5,

6}

Affiliation

将CO ₂光还原成碳氢化合物燃料是实现人工碳循环的可持续替代方案的有前途的途径。光催化CO ₂转化是光生载体和催化剂活性位点处吸附的CO ₂的化学转化。活性位点可以调节载体的动力学过程，控制CO ₂和中间体的吸附，降低活化势垒，促进CC偶联。本综述主要集中于通过活性位点的构建对目标产物的效率和选择性调控。首先，讨论了CO ₂光还原的原理，如单碳和多碳(C ₂₊ )形成的影响因素和具体途径。然后，重点介绍了通过引入活性位点来提高催化效率和调节产物选择性的领先工作，涉及性能的基本机制，特别是对于C ₂₊的生成。随后，概述了当前可用的原位技术和用于识别活性位点的理论计算。最后，从科学、技术和经济角度考虑了实现碳回收的新兴战略所面临的挑战。这篇综述深入探讨了以原子精度构建活性位点，以实现高效光催化CO ₂转化和高选择性生成C _{2+ 。}

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Comprehensive Insight into Construction of Active Sites toward Steering Photocatalytic CO2 Conversion

Photoreduction of CO₂ into hydrocarbon fuels is a promising avenue for achieving a sustainable alternative to the artificial carbon cycle. Photocatalytic CO₂ conversion is the chemical transformation of photogenerated carriers and adsorbed CO₂ at active sites of catalysts. Active sites can regulate the kinetic process of carriers, control the adsorption of CO₂ and intermediates, lower activation barriers, and promote C-C coupling. This review mainly concentrates on the efficiency and selectivity regulation of the target products through construction of active sites. First, the principles of CO₂ photoreduction, such as the influencing factors and specific pathways for monocarbon and multicarbon (C₂₊) formation, are discussed. Then, leading works focusing on improving catalytic efficiency and regulating product selectivity through the introduction of active sites are highlighted, concerning the underlying mechanism of the performance, especially for C₂₊ generation. Subsequently, an overview of the currently available in situ techniques and theoretical calculation for identifying the active sites are provided. Finally, the challenges of emerging strategies to achieve carbon recycling from scientific, technical, and economic perspectives are considered. This review offers deep insight into the construction of active site with atomic precision to achieve efficient photocatalytic CO₂ conversion and the generation of C₂₊ in high selectivity.

更新日期：2023-12-21

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