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Preparation and performance of electrically conductive Nb-doped TiO(2)/polyaniline bilayer coating for 316L stainless steel bipolar plates of proton-exchange membrane fuel cells
A bilayer coating composed of an inner layer of Nb-doped TiO(2) obtained by the sol–gel method and an external polyaniline layer with small SO(4)(2−) groups obtained by galvanostatic deposition was prepared to protect 316L stainless steel bipolar plates of proton-exchange membrane fuel cells. The co...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9080716/ https://www.ncbi.nlm.nih.gov/pubmed/35540967 http://dx.doi.org/10.1039/c8ra02161a |
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author | Wang, Yanli Zhang, Shenghua Lu, Zhaoxia Wang, Ping Ji, Xiaohong Li, Weihua |
author_facet | Wang, Yanli Zhang, Shenghua Lu, Zhaoxia Wang, Ping Ji, Xiaohong Li, Weihua |
author_sort | Wang, Yanli |
collection | PubMed |
description | A bilayer coating composed of an inner layer of Nb-doped TiO(2) obtained by the sol–gel method and an external polyaniline layer with small SO(4)(2−) groups obtained by galvanostatic deposition was prepared to protect 316L stainless steel bipolar plates of proton-exchange membrane fuel cells. The corrosion resistances of bare 316L and 316L with single polyaniline coating and Nb-doped TiO(2)/polyaniline bilayer coating were investigated. The experimental results indicated that both single and bilayer coatings increased the corrosion potential and decreased the corrosion current density compared with bare 316L stainless steel. A thirty-day exposure experiment indicated that the Nb-doped TiO(2)/polyaniline bilayer showed high stability, and it protected 316L more effectively from the penetration of the corrosive ions. |
format | Online Article Text |
id | pubmed-9080716 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90807162022-05-09 Preparation and performance of electrically conductive Nb-doped TiO(2)/polyaniline bilayer coating for 316L stainless steel bipolar plates of proton-exchange membrane fuel cells Wang, Yanli Zhang, Shenghua Lu, Zhaoxia Wang, Ping Ji, Xiaohong Li, Weihua RSC Adv Chemistry A bilayer coating composed of an inner layer of Nb-doped TiO(2) obtained by the sol–gel method and an external polyaniline layer with small SO(4)(2−) groups obtained by galvanostatic deposition was prepared to protect 316L stainless steel bipolar plates of proton-exchange membrane fuel cells. The corrosion resistances of bare 316L and 316L with single polyaniline coating and Nb-doped TiO(2)/polyaniline bilayer coating were investigated. The experimental results indicated that both single and bilayer coatings increased the corrosion potential and decreased the corrosion current density compared with bare 316L stainless steel. A thirty-day exposure experiment indicated that the Nb-doped TiO(2)/polyaniline bilayer showed high stability, and it protected 316L more effectively from the penetration of the corrosive ions. The Royal Society of Chemistry 2018-05-25 /pmc/articles/PMC9080716/ /pubmed/35540967 http://dx.doi.org/10.1039/c8ra02161a Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Wang, Yanli Zhang, Shenghua Lu, Zhaoxia Wang, Ping Ji, Xiaohong Li, Weihua Preparation and performance of electrically conductive Nb-doped TiO(2)/polyaniline bilayer coating for 316L stainless steel bipolar plates of proton-exchange membrane fuel cells |
title | Preparation and performance of electrically conductive Nb-doped TiO(2)/polyaniline bilayer coating for 316L stainless steel bipolar plates of proton-exchange membrane fuel cells |
title_full | Preparation and performance of electrically conductive Nb-doped TiO(2)/polyaniline bilayer coating for 316L stainless steel bipolar plates of proton-exchange membrane fuel cells |
title_fullStr | Preparation and performance of electrically conductive Nb-doped TiO(2)/polyaniline bilayer coating for 316L stainless steel bipolar plates of proton-exchange membrane fuel cells |
title_full_unstemmed | Preparation and performance of electrically conductive Nb-doped TiO(2)/polyaniline bilayer coating for 316L stainless steel bipolar plates of proton-exchange membrane fuel cells |
title_short | Preparation and performance of electrically conductive Nb-doped TiO(2)/polyaniline bilayer coating for 316L stainless steel bipolar plates of proton-exchange membrane fuel cells |
title_sort | preparation and performance of electrically conductive nb-doped tio(2)/polyaniline bilayer coating for 316l stainless steel bipolar plates of proton-exchange membrane fuel cells |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9080716/ https://www.ncbi.nlm.nih.gov/pubmed/35540967 http://dx.doi.org/10.1039/c8ra02161a |
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