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Electrochemical reduction of CO2 into C1 and C2 hydrocarbons using dendritic Cu and Cu2O electrodes
ChemElectroChem ( IF 4 ) Pub Date : 2020-01-19 , DOI: 10.1002/celc.201902035
Muhammad Tajmeel Feroze 1 , Syed Kamran Sami 1, 2 , Dulyawat Doonyapisut 1 , Byeongkyu Kim 1 , Chan‐Hwa Chung 1
Affiliation  

Electroreduction of carbon dioxide to C1 and C2 hydrocarbons has been emerged as an efficient way to utilize carbon dioxide and maintain the broken carbon‐cycle in the environment. The copper is a promising catalyst for such a purpose. The selectivity and stability of hydrocarbon production is still a challenge. Here we propose a simple one‐step electro‐deposition of copper followed by annealing in air, in which the dendritic structures of Cu and Cu 2 O electrodes have been prepared, to enhance the copper‐electrode properties in terms of morphology, selectivity, stability, and electrochemical performance. The selectivity of ethylene using modified dendritic Cu 2 O electrodes remains stable (from 19.21 % to 18.01 %) after the course of over 10 hours by applying a constant potential of ‐1.4V. Our finding suggests a promising lead for the design of practical electrode catalytic electrodes for the fuel synthesis with electrochemical CO 2 reduction.

中文翻译:

使用树枝状Cu和Cu2O电极将CO2电化学还原为C1和C2碳氢化合物

将二氧化碳电还原为C1和C2碳氢化合物已成为一种有效利用二氧化碳并保持环境中破碎的碳循环的有效方法。铜是用于该目的的有希望的催化剂。碳氢化合物生产的选择性和稳定性仍然是一个挑战。在这里,我们提出了一种简单的一步电沉积铜的方法,然后在空气中进行退火,其中已经制备了Cu和Cu 2 O电极的树枝状结构,以增强铜电极在形态,选择性和稳定性方面的性能。和电化学性能。在超过10小时的过程中,通过施加‐1.4V的恒定电势,使用改性的树枝状Cu 2 O电极对乙烯的选择性保持稳定(从19.21%到18.01%)。
更新日期:2020-01-21
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