通过数值模拟设计用于二氧化碳还原反应的膜电极组件电解槽的流道截面

IF 9.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Chinese Chemical Letters Pub Date : 2024-07-06 DOI:10.1016/j.cclet.2024.110204

Lili Zhang , Hui Gao , Gong Zhang , Yuning Dong , Kai Huang , Zifan Pang , Tuo Wang , Chunlei Pei , Peng Zhang , Jinlong Gong

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引用次数: 0

摘要

膜电极组件（MEA）被广泛认为是电化学二氧化碳还原反应（CO2RR）实际应用中最有前途的电解槽类型。在 MEA 中，流道通常采用方形截面，对其进行配置优化有可能提高电解槽的性能。本文介绍了针对 CO2RR 的 MEA 电解槽中流道横截面形状影响的数值模拟研究。结果表明，高度较低的宽流道可提供均匀的二氧化碳流场，从而有利于 CO2RR，尤其是在电流密度较高的情况下。此外，电解槽越大，效果越显著。这项研究为设计用于 CO2RR 的高性能 MEA 电解槽提供了理论依据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Cross-section design of the flow channels in membrane electrode assembly electrolyzer for CO2 reduction reaction through numerical simulations

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Cross-section design of the flow channels in membrane electrode assembly electrolyzer for CO2 reduction reaction through numerical simulations

Membrane electrode assembly (MEA) is widely considered to be the most promising type of electrolyzer for the practical application of electrochemical CO₂ reduction reaction (CO₂RR). In MEAs, a square-shaped cross-section in the flow channel is normally adopted, the configuration optimization of which could potentially enhance the performance of the electrolyzer. This paper describes the numerical simulation study on the impact of the flow-channel cross-section shapes in the MEA electrolyzer for CO₂RR. The results show that wide flow channels with low heights are beneficial to the CO₂RR by providing a uniform flow field of CO₂, especially at high current densities. Moreover, the larger the electrolytic cell, the more significant the effect is. This study provides a theoretical basis for the design of high-performance MEA electrolyzers for CO₂RR.

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来源期刊

Chinese Chemical Letters 化学-化学综合

CiteScore

14.10

自引率

15.40%

发文量

8969

审稿时长

1.6 months

期刊介绍： Chinese Chemical Letters (CCL) (ISSN 1001-8417) was founded in July 1990. The journal publishes preliminary accounts in the whole field of chemistry, including inorganic chemistry, organic chemistry, analytical chemistry, physical chemistry, polymer chemistry, applied chemistry, etc.Chinese Chemical Letters does not accept articles previously published or scheduled to be published. To verify originality, your article may be checked by the originality detection service CrossCheck.