A TiN@C core–shell support for improving Pt catalyst corrosion resistance

The corrosion of the support in proton-exchange membrane fuel cells (PEMFCs) is a major obstacle to their development. In this study, we combined the excellent corrosion resistance and strong metal–support interaction (SMSI) provided by titanium nitride (TiN) with the excellent conductivity of carbo...

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Autores principales: Zhang, Hongyu, Liu, Jia, Li, Xiaolin, Duan, Xiao, Yuan, Mengchen, Cao, Feng, Sun, Kui, Zhang, Yunbo, Wang, Ying, Gu, Zhengbin, Li, Jia, Liu, Jianguo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2022
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9438899/
https://www.ncbi.nlm.nih.gov/pubmed/36199880
http://dx.doi.org/10.1039/d2ra02569h
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author Zhang, Hongyu
Liu, Jia
Li, Xiaolin
Duan, Xiao
Yuan, Mengchen
Cao, Feng
Sun, Kui
Zhang, Yunbo
Wang, Ying
Gu, Zhengbin
Li, Jia
Liu, Jianguo
author_facet Zhang, Hongyu
Liu, Jia
Li, Xiaolin
Duan, Xiao
Yuan, Mengchen
Cao, Feng
Sun, Kui
Zhang, Yunbo
Wang, Ying
Gu, Zhengbin
Li, Jia
Liu, Jianguo
author_sort Zhang, Hongyu
collection PubMed
description The corrosion of the support in proton-exchange membrane fuel cells (PEMFCs) is a major obstacle to their development. In this study, we combined the excellent corrosion resistance and strong metal–support interaction (SMSI) provided by titanium nitride (TiN) with the excellent conductivity of carbon to construct a TiN@C composite support composed of a TiN core and a porous carbon nanolayer shell. The composite TiN@C support exhibited a higher corrosion resistance than the carbon support during testing at 1.2 V (vs. RHE) for 400 h. Based on X-ray photoelectron spectroscopy and density functional theory calculations, the improved corrosion resistance originated from the excellent corrosion resistance of titanium nitride itself and SMSI between Pt and N in TiN. Overall, the high corrosion resistance of the TiN@C support can significantly improve PEMFC durability.
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spelling pubmed-94388992022-10-04 A TiN@C core–shell support for improving Pt catalyst corrosion resistance Zhang, Hongyu Liu, Jia Li, Xiaolin Duan, Xiao Yuan, Mengchen Cao, Feng Sun, Kui Zhang, Yunbo Wang, Ying Gu, Zhengbin Li, Jia Liu, Jianguo RSC Adv Chemistry The corrosion of the support in proton-exchange membrane fuel cells (PEMFCs) is a major obstacle to their development. In this study, we combined the excellent corrosion resistance and strong metal–support interaction (SMSI) provided by titanium nitride (TiN) with the excellent conductivity of carbon to construct a TiN@C composite support composed of a TiN core and a porous carbon nanolayer shell. The composite TiN@C support exhibited a higher corrosion resistance than the carbon support during testing at 1.2 V (vs. RHE) for 400 h. Based on X-ray photoelectron spectroscopy and density functional theory calculations, the improved corrosion resistance originated from the excellent corrosion resistance of titanium nitride itself and SMSI between Pt and N in TiN. Overall, the high corrosion resistance of the TiN@C support can significantly improve PEMFC durability. The Royal Society of Chemistry 2022-09-02 /pmc/articles/PMC9438899/ /pubmed/36199880 http://dx.doi.org/10.1039/d2ra02569h Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Zhang, Hongyu
Liu, Jia
Li, Xiaolin
Duan, Xiao
Yuan, Mengchen
Cao, Feng
Sun, Kui
Zhang, Yunbo
Wang, Ying
Gu, Zhengbin
Li, Jia
Liu, Jianguo
A TiN@C core–shell support for improving Pt catalyst corrosion resistance
title A TiN@C core–shell support for improving Pt catalyst corrosion resistance
title_full A TiN@C core–shell support for improving Pt catalyst corrosion resistance
title_fullStr A TiN@C core–shell support for improving Pt catalyst corrosion resistance
title_full_unstemmed A TiN@C core–shell support for improving Pt catalyst corrosion resistance
title_short A TiN@C core–shell support for improving Pt catalyst corrosion resistance
title_sort tin@c core–shell support for improving pt catalyst corrosion resistance
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9438899/
https://www.ncbi.nlm.nih.gov/pubmed/36199880
http://dx.doi.org/10.1039/d2ra02569h
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