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Ti4O7 supported IrOx for anode reversal tolerance in proton exchange membrane fuel cell

Ti4O7 supported IrOx for anode reversal tolerance in proton exchange membrane fuel cell Fuel starvation can occur and cause damage to the cell when proton exchange membrane fuel cells operate under complex working conditions. In this case, carbon corrosion occurs. Oxygen evolution reaction (OER) catalysts can alleviate carbon corrosion by introducing water electrolysis at a lower potential at the anode in fuel shortage. The mixture of hydrogen oxidation reaction (HOR) and unsupported OER catalyst not only reduces the electrolysis efficiency, but also influences the initial performance of the fuel cell. Herein, Ti4O7 supported IrOx is synthesized by utilizing the surfactant-assistant method and serves as reversal tolerant components in the anode. When the cell reverse time is less than 100 min, the cell voltage of the MEA added with IrOx/Ti4O7 has almost no attenuation. Besides, the MEA has a longer reversal time (530 min) than IrOx (75 min), showing an excellent reversal tolerance. The results of electron microscopy spectroscopy show that IrOx particles have a good dispersity on the surface of Ti4O7 and IrOx/Ti4O7 particles are uniformly dispersed on the anode catalytic layer. After the stability test, the Ti4O7 support has little decay, demonstrating a high electrochemical stability. IrOx/Ti4O7 with a high dispersity has a great potential to the application on the reversal tolerance anode of the fuel cell. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Frontiers in Energy Springer Journals

Ti4O7 supported IrOx for anode reversal tolerance in proton exchange membrane fuel cell

Ti4O7 supported IrOx for anode reversal tolerance in proton exchange membrane fuel cell

Front. Energy https://doi.org/10.1007/s11708-021-0811-7 RESEARCH ARTICLE Yonghuan LI, Wei SONG, Guang JIANG, Yue YANG, Hongmei YU, Zhigang SHAO, Fangwei DUAN, Yingxuan YANG Ti O supported IrO for anode reversal tolerance in proton 4 7 x exchange membrane fuel cell © Higher Education Press 2021 Abstract Fuel starvation can occur and cause damage to Ti O with a high dispersity has a great potential to the 4 7 the cell when proton exchange membrane fuel cells operate application on the reversal tolerance anode of the fuel cell. under complex working conditions. In this case, carbon corrosion occurs. Oxygen evolution reaction (OER) Keywords proton exchange membrane fuel cell catalysts can alleviate carbon corrosion by introducing (PEMFC), fuel starvation, cell reverse, reversal tolerance water electrolysis at a lower potential at the anode in fuel anode, oxygen evolution reaction shortage. The mixture of hydrogen oxidation reaction (HOR) and unsupported OER catalyst not only reduces the 1 Introduction electrolysis efficiency, but also influences the initial performance of the fuel cell. Herein, Ti O supported 4 7 IrO is synthesized by utilizing the surfactant-assistant Proton exchange membrane fuel cell (PEMFC) has method and serves as reversal tolerant components in the attracted wide attention in recent years due to its advantage anode. When the cell reverse time is less than 100 min, the of high conversion efficiency, high power density, and cell voltage of the MEA added with IrO /Ti O has almost environmentally friendliness [1]. However, its cost, x 4 7 no attenuation. Besides, the MEA has a longer reversal performance, and durability are the three major challenges time (530 min) than IrO (75 min), showing an excellent in the process of large-scale commercialization [2,3]. reversal tolerance. The results of electron microscopy The supply of hydrogen may be delayed or insufficient spectroscopy show that IrO particles have a good when...
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Publisher
Springer Journals
Copyright
Copyright © Higher Education Press 2021
ISSN
2095-1701
eISSN
2095-1698
DOI
10.1007/s11708-021-0811-7
Publisher site
See Article on Publisher Site

Abstract

Fuel starvation can occur and cause damage to the cell when proton exchange membrane fuel cells operate under complex working conditions. In this case, carbon corrosion occurs. Oxygen evolution reaction (OER) catalysts can alleviate carbon corrosion by introducing water electrolysis at a lower potential at the anode in fuel shortage. The mixture of hydrogen oxidation reaction (HOR) and unsupported OER catalyst not only reduces the electrolysis efficiency, but also influences the initial performance of the fuel cell. Herein, Ti4O7 supported IrOx is synthesized by utilizing the surfactant-assistant method and serves as reversal tolerant components in the anode. When the cell reverse time is less than 100 min, the cell voltage of the MEA added with IrOx/Ti4O7 has almost no attenuation. Besides, the MEA has a longer reversal time (530 min) than IrOx (75 min), showing an excellent reversal tolerance. The results of electron microscopy spectroscopy show that IrOx particles have a good dispersity on the surface of Ti4O7 and IrOx/Ti4O7 particles are uniformly dispersed on the anode catalytic layer. After the stability test, the Ti4O7 support has little decay, demonstrating a high electrochemical stability. IrOx/Ti4O7 with a high dispersity has a great potential to the application on the reversal tolerance anode of the fuel cell.

Journal

Frontiers in EnergySpringer Journals

Published: Jan 10, 2022

Keywords: proton exchange membrane fuel cell (PEMFC); fuel starvation; cell reverse; reversal tolerance anode; oxygen evolution reaction

References