Photothermal cyclic self-healing coating with extended corrosion resistance utilizing Ag2S@Ti3C2 heterojunction
文献类型：期刊论文
| 作者 | Ji, Wenhui4; Ji, Xiaohong3; Cao, Lin4; Yu, Qing1,2; Wang, Wei4 |
| 刊名 | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
 |
| 出版日期 | 2025-06-01 |
| 卷号 | 13期号:3页码:17 |
| 关键词 | Photothermal self-healing Anti-corrosion coating DA bonds |
| ISSN号 | 2213-2929 |
| DOI | 10.1016/j.jece.2025.116655 |
| 通讯作者 | Ji, Xiaohong(jxhong1009@163.com) ; Wang, Wei(wangwei8038@ouc.edu.cn) |
| 英文摘要 | Here, we developed a novel type of composite coating with excellent self-healing and anti-corrosion properties, activated by photothermally responsive nanofillers. The photothermal heterojunction Ag2S@Ti3C2 was synthesized and functionalized with a silane coupling agent, and subsequently incorporated into an epoxy resin containing Diels-Alder (DA) bonds. It is found that the heterojunction enhances the light absorption, increases the number and lifetime of photogenerated electron-hole pairs, and facilitates the passage of photogenerated charges through the heterojunction interface, thereby reducing interface transfer resistance and releasing heat. Under irradiation with 808 nm near-infrared light, the photothermal effect of Silane-Ag2S@Ti3C2 triggers molecular chain movement and dynamic DA bond reconstruction, thereby repairing scratches in the coating. Surface characterization and electrochemical tests indicate that the coating containing 1 wt% Silane-Ag2S@Ti3C2 nanofillers exhibits significant self-healing and anti-corrosion properties. The self-healing rate of the coating approached nearly 96.00 %. After five self-healing cycles, the protective performance of the initial immersion stage was effectively restored, the self-healing rate remained at about 90.00 %. Even after 60 d of immersion, the low-frequency impedance modulus remained above 108 Omega & sdot;cm2. This study presents a novel strategy for the development of multi-cycle self-healing coatings utilizing photothermal effects. |
| WOS关键词 | NANOCOMPOSITES ; COMPOSITES ; NANOSHEETS |
| 资助项目 | National Natural Science Foundation of China[42476210] ; Natural Science Foundation of Shandong Province[ZR2024ME102] ; Shandong Provincial Department of Transportation Science and Technology Plan Project[2023B85-03] ; Key Research and Development Program of Shandong Province[2023CXPT008] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001476939100001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/201689]  |
| 专题 | 海洋研究所_海洋腐蚀与防护研究发展中心 |
| 通讯作者 | Ji, Xiaohong; Wang, Wei |
| 作者单位 | 1.Jiangsu Marine Technol Innovat Ctr, Nantong 226100, Peoples R China 2.Marine Technol Innovat Ctr Yangtze Delta, Nantong 226100, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Key Lab Adv Marine Mat, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China 4.Ocean Univ China, Sch Mat Sci & Engn, Qingdao 266100, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ji, Wenhui,Ji, Xiaohong,Cao, Lin,et al. Photothermal cyclic self-healing coating with extended corrosion resistance utilizing Ag2S@Ti3C2 heterojunction[J]. JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING,2025,13(3):17. |
| APA | Ji, Wenhui,Ji, Xiaohong,Cao, Lin,Yu, Qing,&Wang, Wei.(2025).Photothermal cyclic self-healing coating with extended corrosion resistance utilizing Ag2S@Ti3C2 heterojunction.JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING,13(3),17. |
| MLA | Ji, Wenhui,et al."Photothermal cyclic self-healing coating with extended corrosion resistance utilizing Ag2S@Ti3C2 heterojunction".JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 13.3(2025):17. |
入库方式： OAI收割
来源：海洋研究所
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