Jozefina Katić, Juraj Nikolić, Tea Juračić, Tin Klačić, Danijel Namjesnik and Tajana Begović
{"title":"基于聚（N-乙基-4-乙烯基吡啶）聚电解质的电化学形成的 Ti|TiO2 表面涂层的表面特性和腐蚀保护研究","authors":"Jozefina Katić, Juraj Nikolić, Tea Juračić, Tin Klačić, Danijel Namjesnik and Tajana Begović","doi":"10.1039/D4TC02777A","DOIUrl":null,"url":null,"abstract":"<p >In this study, the surface properties and corrosion behavior of a titanium sample modified with an electrochemically formed oxide layer (Ti|TiO<small><sub>2</sub></small>) and Ti|TiO<small><sub>2</sub></small> sample coated with poly(<em>N</em>-ethyl-4-vinylpyridinium) cations (PE4VP) were studied. It was shown, by means of atomic force microscopy and ellipsometry, that the Ti|TiO<small><sub>2</sub></small> surface is very flat with an average roughness of only 3.4 nm and an oxide layer thickness of 16.1 nm. The inner surface potential of the Ti|TiO<small><sub>2</sub></small> sample as a function of pH and concentration of sodium chloride was measured using the constructed Ti|TiO<small><sub>2</sub></small> electrode. In order to improve the corrosion protective effectiveness of the surface coating, the process parameter conditions for strong poly(<em>N</em>-ethyl-4-vinylpyridinium) cation optimal adsorption on the electrochemically formed TiO<small><sub>2</sub></small> oxide layer were determined using ellipsometry, tensiometry, and atomic force microscopy. The effect of adsorption of PE4VP cations on the inner surface potential and corrosion protection effectiveness of the TiO<small><sub>2</sub></small> and TiO<small><sub>2</sub></small>-PE4VP coatings was examined. The electrochemical behaviour and corrosion properties of an unmodified titanium surface, titanium surface modified with an electrochemically formed TiO<small><sub>2</sub></small> and subsequently modified with a PE4VP polyelectrolyte-based coating were examined by means of electrochemical impedance spectroscopy. Increased polarization resistance values and high corrosion protection effectiveness after surface modification with the PE4VP coating indicate the formation of a highly protective coating with high corrosion resistance imparted to the underlying titanium. The results presented here provide an insight into the optimization of strong polyelectrolyte cation adsorption process parameters and demonstrate that application of a PE4VP coating is a suitable method for surface modification of titanium to enhance corrosion protection in an aggressive environment.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 42","pages":" 17241-17253"},"PeriodicalIF":5.1000,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/tc/d4tc02777a?page=search","citationCount":"0","resultStr":"{\"title\":\"Surface properties and corrosion protection study of a poly(N-ethyl-4-vinylpyridine) polyelectrolyte-based coating on an electrochemically formed Ti|TiO2 surface\",\"authors\":\"Jozefina Katić, Juraj Nikolić, Tea Juračić, Tin Klačić, Danijel Namjesnik and Tajana Begović\",\"doi\":\"10.1039/D4TC02777A\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >In this study, the surface properties and corrosion behavior of a titanium sample modified with an electrochemically formed oxide layer (Ti|TiO<small><sub>2</sub></small>) and Ti|TiO<small><sub>2</sub></small> sample coated with poly(<em>N</em>-ethyl-4-vinylpyridinium) cations (PE4VP) were studied. It was shown, by means of atomic force microscopy and ellipsometry, that the Ti|TiO<small><sub>2</sub></small> surface is very flat with an average roughness of only 3.4 nm and an oxide layer thickness of 16.1 nm. The inner surface potential of the Ti|TiO<small><sub>2</sub></small> sample as a function of pH and concentration of sodium chloride was measured using the constructed Ti|TiO<small><sub>2</sub></small> electrode. In order to improve the corrosion protective effectiveness of the surface coating, the process parameter conditions for strong poly(<em>N</em>-ethyl-4-vinylpyridinium) cation optimal adsorption on the electrochemically formed TiO<small><sub>2</sub></small> oxide layer were determined using ellipsometry, tensiometry, and atomic force microscopy. The effect of adsorption of PE4VP cations on the inner surface potential and corrosion protection effectiveness of the TiO<small><sub>2</sub></small> and TiO<small><sub>2</sub></small>-PE4VP coatings was examined. The electrochemical behaviour and corrosion properties of an unmodified titanium surface, titanium surface modified with an electrochemically formed TiO<small><sub>2</sub></small> and subsequently modified with a PE4VP polyelectrolyte-based coating were examined by means of electrochemical impedance spectroscopy. Increased polarization resistance values and high corrosion protection effectiveness after surface modification with the PE4VP coating indicate the formation of a highly protective coating with high corrosion resistance imparted to the underlying titanium. The results presented here provide an insight into the optimization of strong polyelectrolyte cation adsorption process parameters and demonstrate that application of a PE4VP coating is a suitable method for surface modification of titanium to enhance corrosion protection in an aggressive environment.</p>\",\"PeriodicalId\":84,\"journal\":{\"name\":\"Journal of Materials Chemistry C\",\"volume\":\" 42\",\"pages\":\" 17241-17253\"},\"PeriodicalIF\":5.1000,\"publicationDate\":\"2024-09-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://pubs.rsc.org/en/content/articlepdf/2024/tc/d4tc02777a?page=search\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Materials Chemistry C\",\"FirstCategoryId\":\"1\",\"ListUrlMain\":\"https://pubs.rsc.org/en/content/articlelanding/2024/tc/d4tc02777a\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Chemistry C","FirstCategoryId":"1","ListUrlMain":"https://pubs.rsc.org/en/content/articlelanding/2024/tc/d4tc02777a","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Surface properties and corrosion protection study of a poly(N-ethyl-4-vinylpyridine) polyelectrolyte-based coating on an electrochemically formed Ti|TiO2 surface
In this study, the surface properties and corrosion behavior of a titanium sample modified with an electrochemically formed oxide layer (Ti|TiO2) and Ti|TiO2 sample coated with poly(N-ethyl-4-vinylpyridinium) cations (PE4VP) were studied. It was shown, by means of atomic force microscopy and ellipsometry, that the Ti|TiO2 surface is very flat with an average roughness of only 3.4 nm and an oxide layer thickness of 16.1 nm. The inner surface potential of the Ti|TiO2 sample as a function of pH and concentration of sodium chloride was measured using the constructed Ti|TiO2 electrode. In order to improve the corrosion protective effectiveness of the surface coating, the process parameter conditions for strong poly(N-ethyl-4-vinylpyridinium) cation optimal adsorption on the electrochemically formed TiO2 oxide layer were determined using ellipsometry, tensiometry, and atomic force microscopy. The effect of adsorption of PE4VP cations on the inner surface potential and corrosion protection effectiveness of the TiO2 and TiO2-PE4VP coatings was examined. The electrochemical behaviour and corrosion properties of an unmodified titanium surface, titanium surface modified with an electrochemically formed TiO2 and subsequently modified with a PE4VP polyelectrolyte-based coating were examined by means of electrochemical impedance spectroscopy. Increased polarization resistance values and high corrosion protection effectiveness after surface modification with the PE4VP coating indicate the formation of a highly protective coating with high corrosion resistance imparted to the underlying titanium. The results presented here provide an insight into the optimization of strong polyelectrolyte cation adsorption process parameters and demonstrate that application of a PE4VP coating is a suitable method for surface modification of titanium to enhance corrosion protection in an aggressive environment.
期刊介绍：
The Journal of Materials Chemistry is divided into three distinct sections, A, B, and C, each catering to specific applications of the materials under study:
Journal of Materials Chemistry A focuses primarily on materials intended for applications in energy and sustainability.
Journal of Materials Chemistry B specializes in materials designed for applications in biology and medicine.
Journal of Materials Chemistry C is dedicated to materials suitable for applications in optical, magnetic, and electronic devices.
Example topic areas within the scope of Journal of Materials Chemistry C are listed below. This list is neither exhaustive nor exclusive.
Bioelectronics
Conductors
Detectors
Dielectrics
Displays
Ferroelectrics
Lasers
LEDs
Lighting
Liquid crystals
Memory
Metamaterials
Multiferroics
Photonics
Photovoltaics
Semiconductors
Sensors
Single molecule conductors
Spintronics
Superconductors
Thermoelectrics
Topological insulators
Transistors
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