Tuning carbon dioxide electroreduction through selective facet exposure

IF 8 2区 工程技术 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY
Lorena Chico-Mesa , Enrique Herrero , Rosa M Arán-Ais
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Abstract

The carbon dioxide reduction reaction (CO2RR) could reduce the atmospheric CO2 and store the excess energy obtained by renewable sources. However, proper catalysts are sought to reduce the high overpotentials needed to electroreduce CO2 and improve the selectivity toward a desired product. Through rational synthetic control, it is possible to obtain nanocrystals (NCs) with a certain shape, which is translated into a preferential surface orientation. Given the structure sensitivity of the CO2RR, the use of shape-controlled NCs allows for tuning the activity and selectivity of the reaction. This review analyzes the recent findings about shape-controlled NCs for the CO2RR regarding their synthesis, shape-dependent selectivity, and how to twist their catalytic behavior and stability by compositional modifications. The importance of combining in situ and operando techniques that enable proper correlations between the structural and compositional changes of the catalyst under CO2RR conditions, and the resulting product distribution is highlighted, aiming for a final transference to real application systems.

Abstract Image

通过选择性切面曝光调节二氧化碳电还原
二氧化碳还原反应(CO2RR)可以减少大气中的二氧化碳,并储存从可再生能源中获得的多余能量。然而,人们需要寻找合适的催化剂来降低电还原二氧化碳所需的高过电位,并提高对所需产物的选择性。通过合理的合成控制,可以获得具有特定形状的纳米晶体 (NC),并将其转化为优先的表面取向。鉴于 CO2RR 的结构敏感性,使用形状可控的 NCs 可以调整反应的活性和选择性。本综述分析了有关用于 CO2RR 的形状可控 NC 的最新研究成果,涉及其合成、形状选择性,以及如何通过成分修饰来改变其催化行为和稳定性。本文强调了原位技术和操作技术相结合的重要性,这些技术能够在 CO2RR 条件下适当关联催化剂的结构和组成变化以及由此产生的产物分布,目的是最终将其应用到实际应用系统中。
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来源期刊
Current Opinion in Chemical Engineering
Current Opinion in Chemical Engineering BIOTECHNOLOGY & APPLIED MICROBIOLOGYENGINE-ENGINEERING, CHEMICAL
CiteScore
12.80
自引率
3.00%
发文量
114
期刊介绍: Current Opinion in Chemical Engineering is devoted to bringing forth short and focused review articles written by experts on current advances in different areas of chemical engineering. Only invited review articles will be published. The goals of each review article in Current Opinion in Chemical Engineering are: 1. To acquaint the reader/researcher with the most important recent papers in the given topic. 2. To provide the reader with the views/opinions of the expert in each topic. The reviews are short (about 2500 words or 5-10 printed pages with figures) and serve as an invaluable source of information for researchers, teachers, professionals and students. The reviews also aim to stimulate exchange of ideas among experts. Themed sections: Each review will focus on particular aspects of one of the following themed sections of chemical engineering: 1. Nanotechnology 2. Energy and environmental engineering 3. Biotechnology and bioprocess engineering 4. Biological engineering (covering tissue engineering, regenerative medicine, drug delivery) 5. Separation engineering (covering membrane technologies, adsorbents, desalination, distillation etc.) 6. Materials engineering (covering biomaterials, inorganic especially ceramic materials, nanostructured materials). 7. Process systems engineering 8. Reaction engineering and catalysis.
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