Improving stability of chloralkaline high-temperature PBI-PEMFCs

• 全文链接
• 请求原文

作   者：

Carvela, Mireya;  Lobato, Justo;  Rodrigo, Manuel A.; 

作者机构：

Univ Castilla La Mancha; 

关键词：

Ruthenium catalyst;  OXIDATION;  HYDROGEN;  REDUCTION;  Chloralkaline fuel cells;  PBI;  FUEL-CELL;  High temperature PEM fuel cells; 

期刊名称：

Journal of Electroanalytical Chemistry: An International Journal Devoted to All Aspects of Electrode Kinetics, Interfacial Structure, Properties of Electrolytes, Colloid and Biological Electrochemistry

i s s n：

1572-6657

年卷期：

2022 年 904 卷

页   码：

摘   要：

This work focuses on the production of electricity using chloralkaline high temperature PEM fuel cells (HTPEMFC) comparing, within the range 120-180 degrees C, the performance of a cell equipped with a cathode containing a novel Ru/Pt catalyst manufactured at mild temperature conditions with another cell which contains a conventional Ru based catalyst (Ru0.75Pt0.25O2). Performance of the cell equipped with the conventional electrode at 120 degrees C is much better, but this situation reverses at higher operation temperatures, where the novel catalyst outperforms the conventional Ru0.75Pt0.25O2 in terms of production of electricity. In addition, the new catalyst allows to operate even at 180 degrees C, temperature at which the cell equipped with the conventional electrode is completely deteriorated. Results pointed out that materials are the bottleneck for the chloralkaline HT-PEMFC technology but opens the window for the search of new materials that help to improve their future development.