Recent advances in CO 2 capture and reduction
Recent advances in CO 2 capture and reduction
复制标题
CO 2 捕获和还原的最新进展
DOI：
10.1039/d2nr02894h
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发表时间：
2022
期刊：
影响因子：
6.7
通讯作者：
Sun, Shouheng
中科院分区：
文献类型：
--
作者：
Wei, Kecheng;Guan, Huanqin;Luo, Qiang;He, Jie;Sun, Shouheng
鉴于拟人活动向大气中持续排放过量的二氧化碳，现在对负碳排放技术的需求日益增长，这需要有效地捕获二氧化碳并将其转化为增值化学品。本文综述了CO2捕获和转化化学和工艺的最新进展。它首先总结了各种吸附剂材料，已开发的CO2捕获，包括氢氧化物，胺，和金属有机骨架的吸附剂。然后，它回顾了最近的努力致力于两种类型的CO2转化反应：热化学CO2加氢和电化学CO2还原。虽然热加氢反应通常在H2的存在下完成，但电化学反应是通过直接使用太阳能和风能可再生发电来实现的。这些反应成功的关键是开发高效的催化剂和合理设计催化剂-电解质界面。审查还包括最近在整合CO2捕获和转化过程方面的研究，以便优化整个CO2捕获和转化的能源效率。最后，综述了一些新的方法和未来的发展方向，耦合直接空气捕获和CO2转化技术作为解决负碳排放和能源可持续性的解决方案。
Given the continuous and excessive CO2 emission into the atmosphere from anthropomorphic activities, there is now a growing demand for negative carbon emission technologies, which requires efficient capture and conversion of CO2 to value-added chemicals. This review highlights recent advances in CO2 capture and conversion chemistry and processes. It first summarizes various adsorbent materials that have been developed for CO2 capture, including hydroxide-, amine-, and metal organic framework-based adsorbents. It then reviews recent efforts devoted to two types of CO2 conversion reaction: thermochemical CO2 hydrogenation and electrochemical CO2 reduction. While thermal hydrogenation reactions are often accomplished in the presence of H2, electrochemical reactions are realized by direct use of electricity that can be renewably generated from solar and wind power. The key to the success of these reactions is to develop efficient catalysts and to rationally engineer the catalyst–electrolyte interfaces. The review further covers recent studies in integrating CO2 capture and conversion processes so that energy efficiency for the overall CO2 capture and conversion can be optimized. Lastly, the review briefs some new approaches and future directions of coupling direct air capture and CO2 conversion technologies as solutions to negative carbon emission and energy sustainability.