Tiange Wang, Xiaoqing Ma, Baolong Gong, Jiale Hou, Shuxian Ji, Xixun Shen, Yulin Min, Qunjie Xu, Huaijie Cao
{"title":"在PEMFC环境下，表面电位的重新定位诱导了铝合金双极板上MXene/壳聚糖薄复合涂层的稳定耐蚀性","authors":"Tiange Wang, Xiaoqing Ma, Baolong Gong, Jiale Hou, Shuxian Ji, Xixun Shen, Yulin Min, Qunjie Xu, Huaijie Cao","doi":"10.1016/j.corsci.2025.112854","DOIUrl":null,"url":null,"abstract":"<div><div>A thin MXene/chitosan composite coating (∼11. 29 μm) is designed for protection on Al alloy bipolar plates in simulated PEMFC environments. As a result, the corrosion current density decreases to 7.046 × 10<sup>−6</sup> A/cm<sup>2</sup> and the wear rate reduces to 1.147 × 10<sup>−2</sup> mm<sup>−3</sup> N<sup>−1</sup>m<sup>−1</sup>. Interestingly, it remains stable corrosion resistance after immersion tests over 168 h. In-situ corrosion experiment and surface potential distribution obtained by scanning kelvin probe force microscopy (SKPFM) reveal that the high corrosion resistance is attributed to a strong barrier and relocation of surface potential on the coating. This work sheds insights into understanding the protective mechanisms of MXene coating.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"249 ","pages":"Article 112854"},"PeriodicalIF":7.4000,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Relocation of surface potential induced stable corrosion resistance of thin MXene/chitosan composite coating on Al alloy bipolar plates in PEMFC environments\",\"authors\":\"Tiange Wang, Xiaoqing Ma, Baolong Gong, Jiale Hou, Shuxian Ji, Xixun Shen, Yulin Min, Qunjie Xu, Huaijie Cao\",\"doi\":\"10.1016/j.corsci.2025.112854\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>A thin MXene/chitosan composite coating (∼11. 29 μm) is designed for protection on Al alloy bipolar plates in simulated PEMFC environments. As a result, the corrosion current density decreases to 7.046 × 10<sup>−6</sup> A/cm<sup>2</sup> and the wear rate reduces to 1.147 × 10<sup>−2</sup> mm<sup>−3</sup> N<sup>−1</sup>m<sup>−1</sup>. Interestingly, it remains stable corrosion resistance after immersion tests over 168 h. In-situ corrosion experiment and surface potential distribution obtained by scanning kelvin probe force microscopy (SKPFM) reveal that the high corrosion resistance is attributed to a strong barrier and relocation of surface potential on the coating. This work sheds insights into understanding the protective mechanisms of MXene coating.</div></div>\",\"PeriodicalId\":290,\"journal\":{\"name\":\"Corrosion Science\",\"volume\":\"249 \",\"pages\":\"Article 112854\"},\"PeriodicalIF\":7.4000,\"publicationDate\":\"2025-06-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Corrosion Science\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0010938X25001817\",\"RegionNum\":1,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2025/3/10 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Corrosion Science","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0010938X25001817","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/3/10 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Relocation of surface potential induced stable corrosion resistance of thin MXene/chitosan composite coating on Al alloy bipolar plates in PEMFC environments
A thin MXene/chitosan composite coating (∼11. 29 μm) is designed for protection on Al alloy bipolar plates in simulated PEMFC environments. As a result, the corrosion current density decreases to 7.046 × 10−6 A/cm2 and the wear rate reduces to 1.147 × 10−2 mm−3 N−1m−1. Interestingly, it remains stable corrosion resistance after immersion tests over 168 h. In-situ corrosion experiment and surface potential distribution obtained by scanning kelvin probe force microscopy (SKPFM) reveal that the high corrosion resistance is attributed to a strong barrier and relocation of surface potential on the coating. This work sheds insights into understanding the protective mechanisms of MXene coating.
期刊介绍：
Corrosion occurrence and its practical control encompass a vast array of scientific knowledge. Corrosion Science endeavors to serve as the conduit for the exchange of ideas, developments, and research across all facets of this field, encompassing both metallic and non-metallic corrosion. The scope of this international journal is broad and inclusive. Published papers span from highly theoretical inquiries to essentially practical applications, covering diverse areas such as high-temperature oxidation, passivity, anodic oxidation, biochemical corrosion, stress corrosion cracking, and corrosion control mechanisms and methodologies.
This journal publishes original papers and critical reviews across the spectrum of pure and applied corrosion, material degradation, and surface science and engineering. It serves as a crucial link connecting metallurgists, materials scientists, and researchers investigating corrosion and degradation phenomena. Join us in advancing knowledge and understanding in the vital field of corrosion science.
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