Modeling and multiphysics analysis for electrochemical CO2 reduction in solid-electrolyte reactors

被引：2

作者：

Zhang, Weiqi ^{[1
]}

Shan, Haowen ^{[1
]}

Liu, Yajiao ^{[3
]}

Xu, Qian ^{[1
]}

Su, Huaneng ^{[1
]}

Ma, Qiang ^{[1
]}

Liu, Huiyuan ^{[1
]}

Hua, Lun ^{[3
]}

Li, Zhuo ^{[1
,2
,3
]}

机构：

[1] Jiangsu Univ, Inst Energy Res, Zhenjiang 212013, Peoples R China

[2] Chongqing Univ, Key Lab Low Grade Energy Utilizat Technol & Syst, Minist Educ China, Chongqing 400044, Peoples R China

[3] Tsinghua Univ, Suzhou Automot Res Inst, Suzhou 215200, Peoples R China

来源：

CHEMICAL PHYSICS LETTERS | 2024年 / 836卷

关键词：

Solid-electrolyte reactor; ElectrochemicalCO2; reduction; Modeling study; Multiphysics; CONVERSION;

D O I：

10.1016/j.cplett.2023.141031

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Mass transfer and overportential distribution of solid-electrolyte reactors, an electrochemical CO2 conversion equipment, are analyzed by a multiphysics model. It shows that the ohmic loss caused by charge transport in porous solid electrolytes (usually thought to be a major bottleneck of solid-electrolyte reactors) begins to show its significantly negative effect on reactor performance till current densities reach 400 mA/cm(2), much higher than that required for relevant commercial operation (similar to 200 mA/cm(2)). Thus, we suggest much attention should still be put on how to decrease thermodynamics (similar to 1.46 V) and activation losses (>1.4 V) of reactors, rather than developing elaborate structures and materials of porous solid electrolytes to decrease ohmic losses.

引用

页数：8

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