{"title":"轻松消除 TiO2 纳米管光阳极中的富碳层","authors":"Ah-yeong Lee, Rin Jung, JeongEun Yoo, Kiyoung Lee","doi":"10.1007/s10008-024-06063-6","DOIUrl":null,"url":null,"abstract":"<p>TiO<sub>2</sub> nanotubes have been numerously utilized in photoelectrochemical field due to its intrinsic and structural advantages. However, TiO<sub>2</sub> nanotubes anodized in organic electrolyte endemically involve carbon-rich layers inside of nanotubes, frequently interrupting charge transfers and photocatalytic reactions. In this study, we investigated some different treatments of TiO<sub>2</sub> nanotubes to eliminate carbon-rich layers from anodic TiO<sub>2</sub> nanotubes. Firstly, photoelectrochemical properties of TiO<sub>2</sub> with various thickness were addressed, and the TiO<sub>2</sub> nanotubes with 3.65 µm were selected for the further treatments. Subsequently, the morphological properties of TiO<sub>2</sub> were optimized to be utilized as a photoanode through the different treatment methods. In conclusion, the optimal TiO<sub>2</sub> nanotubes treated by mechanical grinding and chemical etching process behaved as an efficient photoanode with enhanced photocurrent of 0.2 mA/cm<sup>2</sup>, IPCE of 59% at 350 nm and lowered charge transfer resistance of 983 Ω.</p>","PeriodicalId":665,"journal":{"name":"Journal of Solid State Electrochemistry","volume":"5 1","pages":""},"PeriodicalIF":2.6000,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Facile treatment to eliminate carbon-rich layer in TiO2 nanotube photoanodes\",\"authors\":\"Ah-yeong Lee, Rin Jung, JeongEun Yoo, Kiyoung Lee\",\"doi\":\"10.1007/s10008-024-06063-6\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>TiO<sub>2</sub> nanotubes have been numerously utilized in photoelectrochemical field due to its intrinsic and structural advantages. However, TiO<sub>2</sub> nanotubes anodized in organic electrolyte endemically involve carbon-rich layers inside of nanotubes, frequently interrupting charge transfers and photocatalytic reactions. In this study, we investigated some different treatments of TiO<sub>2</sub> nanotubes to eliminate carbon-rich layers from anodic TiO<sub>2</sub> nanotubes. Firstly, photoelectrochemical properties of TiO<sub>2</sub> with various thickness were addressed, and the TiO<sub>2</sub> nanotubes with 3.65 µm were selected for the further treatments. Subsequently, the morphological properties of TiO<sub>2</sub> were optimized to be utilized as a photoanode through the different treatment methods. In conclusion, the optimal TiO<sub>2</sub> nanotubes treated by mechanical grinding and chemical etching process behaved as an efficient photoanode with enhanced photocurrent of 0.2 mA/cm<sup>2</sup>, IPCE of 59% at 350 nm and lowered charge transfer resistance of 983 Ω.</p>\",\"PeriodicalId\":665,\"journal\":{\"name\":\"Journal of Solid State Electrochemistry\",\"volume\":\"5 1\",\"pages\":\"\"},\"PeriodicalIF\":2.6000,\"publicationDate\":\"2024-09-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Solid State Electrochemistry\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.1007/s10008-024-06063-6\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ELECTROCHEMISTRY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Solid State Electrochemistry","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1007/s10008-024-06063-6","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ELECTROCHEMISTRY","Score":null,"Total":0}
Facile treatment to eliminate carbon-rich layer in TiO2 nanotube photoanodes
TiO2 nanotubes have been numerously utilized in photoelectrochemical field due to its intrinsic and structural advantages. However, TiO2 nanotubes anodized in organic electrolyte endemically involve carbon-rich layers inside of nanotubes, frequently interrupting charge transfers and photocatalytic reactions. In this study, we investigated some different treatments of TiO2 nanotubes to eliminate carbon-rich layers from anodic TiO2 nanotubes. Firstly, photoelectrochemical properties of TiO2 with various thickness were addressed, and the TiO2 nanotubes with 3.65 µm were selected for the further treatments. Subsequently, the morphological properties of TiO2 were optimized to be utilized as a photoanode through the different treatment methods. In conclusion, the optimal TiO2 nanotubes treated by mechanical grinding and chemical etching process behaved as an efficient photoanode with enhanced photocurrent of 0.2 mA/cm2, IPCE of 59% at 350 nm and lowered charge transfer resistance of 983 Ω.
期刊介绍：
The Journal of Solid State Electrochemistry is devoted to all aspects of solid-state chemistry and solid-state physics in electrochemistry.
The Journal of Solid State Electrochemistry publishes papers on all aspects of electrochemistry of solid compounds, including experimental and theoretical, basic and applied work. It equally publishes papers on the thermodynamics and kinetics of electrochemical reactions if at least one actively participating phase is solid. Also of interest are articles on the transport of ions and electrons in solids whenever these processes are relevant to electrochemical reactions and on the use of solid-state electrochemical reactions in the analysis of solids and their surfaces.
The journal covers solid-state electrochemistry and focusses on the following fields: mechanisms of solid-state electrochemical reactions, semiconductor electrochemistry, electrochemical batteries, accumulators and fuel cells, electrochemical mineral leaching, galvanic metal plating, electrochemical potential memory devices, solid-state electrochemical sensors, ion and electron transport in solid materials and polymers, electrocatalysis, photoelectrochemistry, corrosion of solid materials, solid-state electroanalysis, electrochemical machining of materials, electrochromism and electrochromic devices, new electrochemical solid-state synthesis.
The Journal of Solid State Electrochemistry makes the professional in research and industry aware of this swift progress and its importance for future developments and success in the above-mentioned fields.
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