Photoelectrochemical Conversion of Carbon Dioxide (CO2) into Fuels and Value-Added Products,ACS Energy Letters

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Photoelectrochemical Conversion of Carbon Dioxide (CO2) into Fuels and Value-Added Products
ACS Energy Letters ( IF 19.3 ) Pub Date : 2020-01-21 , DOI: 10.1021/acsenergylett.9b02585
Vignesh Kumaravel _{1,

2} , John Bartlett _{1,

2} , Suresh C. Pillai _{1,

2}

Affiliation

The conversion of carbon dioxide (CO₂) into fuels and value-added products is one of the most significant inventions to address the global warming and energy needs. Photoelectrochemical (PEC) CO₂ conversion can be considered as an artificial photosynthesis technique that produces formate, formaldehyde, formic acid, methane, methanol, ethanol, etc. Recent advances in electrode materials, mechanisms, kinetics, thermodynamics, and reactor designs of PEC CO₂ conversion have been comprehensively reviewed in this article. The adsorption and activation of CO₂/intermediates at the electrode surface are the key steps for improving the kinetics of CO₂ conversion. PEC efficiency could be upgraded through the utilization of 2D/3D materials, plasmonic metals, carbon-based catalysts, porous nanostructures, metal–organic frameworks, molecular catalysts, and biological molecules. The defect engineered (by cation/anion vacancy, crystal distortion, pits, and creation of oxygen vacancies) 2D/3D materials, Z-scheme heterojunctions, bioelectrodes, and tandem photovoltaic–PEC reactors are suitable options to enhance the efficiency at low external bias.

中文翻译：

二氧化碳（CO ₂）的光电化学转化为燃料和增值产品

将二氧化碳（CO ₂）转化为燃料和增值产品是解决全球变暖和能源需求的最重要的发明之一。光电化学（PEC）CO ₂转化可以被认为是一种人造光合作用技术，可产生甲酸盐，甲醛，甲酸，甲烷，甲醇，乙醇等。PEC CO的电极材料，机理，动力学，热力学和反应器设计方面的最新进展本文已对₂转换进行了全面的回顾。电极表面上CO ₂ /中间体的吸附和活化是改善CO ₂动力学的关键步骤转换。通过利用2D / 3D材料，等离激元金属，碳基催化剂，多孔纳米结构，金属有机框架，分子催化剂和生物分子，可以提高PEC效率。设计的缺陷（通过阳离子/阴离子空位，晶体畸变，凹坑和氧空位的产生）2D / 3D材料，Z型异质结，生物电极和串联光伏-PEC反应器是提高低外部偏置效率的合适选择。

更新日期：2020-01-22

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