Photocatalytic CO2 Reduction to C2+Products
Photocatalytic CO2 Reduction to C2+Products
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DOI：
10.1021/acscatal.0c00478
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发表时间：
2020-05-15
期刊：
影响因子：
12.9
通讯作者：
Garcia, Hermenegildo
中科院分区：
文献类型：
--
作者：
Albero, Josep;Peng, Yong;Garcia, Hermenegildo
人们对通过太阳光进行光催化CO2转化的发展非常感兴趣，因为该过程与地球上生命所基于的自然光合作用具有相似之处。目前，在这一领域的大部分努力都旨在提高生产率，而不是控制产品分配。特别地，具有两个或更多个碳（C2+）的化合物具有比甲烷、一氧化碳或甲酸盐更高的附加值，甲烷、一氧化碳或甲酸盐通常是CO2还原的主要产物。本文综述了光催化还原CO2反应中两个或两个以上碳原子（C2+）化合物的形成，包括以H2O或H2-为电子和质子源的反应。现有的文献已经根据被认为是对C2+产物的选择性负责的主要因素进行了组织，包括光催化剂结构、助催化剂的性质、缺陷的影响和表面等离子体带的影响。重点已经作出了评论，目前的经验知识的基础上，实验结果和预测能力的缺乏，可能会导致开发高效的光催化系统的C2+生产。
There is a considerable interest in the development of photocatalytic CO2 conversion by sunlight, since this process has similarities with natural photosynthesis on which life on Earth is based. At the moment, most of the efforts in this field have been aimed at increasing the productivity, rather than at the control of the product distribution. Particularly, compounds with two or more carbons (C2+) have higher added value than methane, carbon monoxide, or formate, which are typically the major products of CO2 reduction. This review focuses on those reports that have described the formation of compounds of two or more carbon atoms (C2+) in the photocatalytic CO2 reduction either by H2O or as H-2 as a source of electrons and protons. The existing literature has been organized according to the main factor considered to be responsible for the selectivity to C2+ products, including photocatalyst structuration, nature of the co-catalyst, influence of defects, and effects of surface plasmon band. Emphasis has been made on remarking the current empirical knowledge based on experimental results and the lack of predictive capability that could lead to the development of efficient photocatalytic systems for C2+ production.