On the role of pore constrictions in gas diffusion electrodes

被引：7

作者：

Bozzetti, Michele ^{[1
]}

Berger, Anne ^{[2
,3
]}

Girod, Robin ^{[1
]}

Chen, Yen-Chun ^{[4
]}

Buechi, Felix N. ^{[4
]}

Gasteiger, Hubert A. ^{[2
,3
]}

Tileli, Vasiliki ^{[1
]}

机构：

[1] Ecole Polytech Fed Lausanne, Inst Mat, Stn 12, CH-1015 Lausanne, Switzerland

[2] Tech Univ Munich, Dept Chem, Chair Tech Electrochem, Munich, Germany

[3] Tech Univ Munich, Catalysis Res Ctr, Munich, Germany

[4] Paul Scherrer Inst, Electrochem Lab, CH-5232 Villigen, Switzerland

来源：

CHEMICAL COMMUNICATIONS | 2022年 / 58卷 / 63期

基金：

新加坡国家研究基金会; 瑞士国家科学基金会;

关键词：

MICROSTRUCTURE-PROPERTY RELATIONSHIPS; FUEL-CELLS; MICROPOROUS LAYER; WATER TRANSPORT; LIQUID WATER; TORTUOSITY; MORPHOLOGY; GDL;

D O I：

10.1039/d2cc02844a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Water management by gas diffusion electrodes is a fundamental aspect of the performance of electrochemical cells. Herein, we introduce the characteristic constrictions size as a descriptor for microporous layers (MPL). This parameter is calculated by volumetric analysis of focused ion beam nanotomography and compared to mercury intrusion porosimetry measurements.

引用

页码：8854 / 8857

页数：4

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