Junction Engineering for Photocatalytic and Photoelectrocatalytic CO 2 Reduction
Junction Engineering for Photocatalytic and Photoelectrocatalytic CO 2 Reduction
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DOI：
10.1002/solr.202000430
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发表时间：
2020-09
期刊：
影响因子：
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通讯作者：
Lizhen Liu;Yihe Zhang;Hongwei Huang
中科院分区：
文献类型：
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作者：
Lizhen Liu;Yihe Zhang;Hongwei Huang
人工光合作用产生的清洁燃料在解决能源危机和环境污染方面显示出诱人的前景。然而，由于光子利用率低、电子空穴复合严重、反应位点不足等原因，太阳能电池的转换效率较低，难以满足产业化的要求。幸运的是，结工程在克服上述问题方面表现出色。本文提供了对各种结工程的最新基本理解，以提高太阳能驱动的CO2减排的效率，选择性和稳定性。综述了异质结、同质结和多结在光催化和光电化学CO2还原中的研究进展，特别是它们在促进光催化和光电化学CO2还原过程中的关键作用，包括电荷分离和转移、CO2的吸附和活化以及产物的脱附等，为CO2光催化还原提供了一条相互借鉴的发展途径。最后，展望了太阳能驱动的CO2减排光催化剂的结工程设计的当前挑战和前景。
Artificial photosynthesis of clean fuels shows fascinating prospects for solving the energy crisis and environmental pollution. However, the solar conversion efficiency is too low to fulfill industrialization requirements, which is confined by the poor photon utilization, severe recombination of electrons and holes, and insufficient reactive sites. Fortunately, junction engineering displays outstanding performance in conquering the aforementioned problems. Herein, an updated fundamental understanding of various junction engineering for enhancing the efficiency, selectivity, and stability of solar‐driven CO2 reduction is provided. The recent progresses of heterojunctions, homojunctions, and multijunctions for photocatalytic (PC) and photoelectrochemical (PEC) CO2 reduction are focused on, especially their essential roles in facilitating the key PC or PEC processes, including charge separation and transfer, adsorption and activation of CO2, and desorption of products, which may provide an interactively referential development pathway for CO2 photoreduction. Finally, an outlook on the current challenges and perspectives of junction engineering design of photocatalysts for solar‐driven CO2 reduction is provided.