{"title":"用于增强光阴极保护的电沉积石墨烯@二氧化钛纳米片","authors":"Qian-Yu Wang, Teng Xu, Ji-Ming Hu","doi":"10.1016/j.elecom.2024.107682","DOIUrl":null,"url":null,"abstract":"<div><p>In this work, TiO<sub>2</sub> was firmly attached on freestanding graphene (Gr, rather than graphene oxide or reduced graphene oxide) nanosheets (Gr@e-TiO<sub>2</sub>) by a novel electrodeposition method. The morphology, crystal structure, band gap characteristics, optical properties and photoelectric properties were systematically investigated. It is indicated that the absorption of visible light increased and the recombination of photogenerated electron-hole pairs decreased for the as-obtained Gr@e-TiO<sub>2</sub>. Compared with pure TiO<sub>2</sub> as well as GO (graphene oxide)@h-TiO<sub>2</sub> prepared by conventional hydrothermal method, Gr@e-TiO<sub>2</sub> exhibited a more negative open circuit potential and higher photocurrent density for 304SS protection. The enhanced photocathodic protection performance of Gr@e-TiO<sub>2</sub> can be attributed to the large specific surface area and good charge transport efficiency of graphene.</p></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"160 ","pages":"Article 107682"},"PeriodicalIF":4.7000,"publicationDate":"2024-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1388248124000250/pdfft?md5=ebdcaf937613fd872e90737e19b3d017&pid=1-s2.0-S1388248124000250-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Electrodeposited graphene@TiO2 nanosheets for enhanced photocathodic protection\",\"authors\":\"Qian-Yu Wang, Teng Xu, Ji-Ming Hu\",\"doi\":\"10.1016/j.elecom.2024.107682\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>In this work, TiO<sub>2</sub> was firmly attached on freestanding graphene (Gr, rather than graphene oxide or reduced graphene oxide) nanosheets (Gr@e-TiO<sub>2</sub>) by a novel electrodeposition method. The morphology, crystal structure, band gap characteristics, optical properties and photoelectric properties were systematically investigated. It is indicated that the absorption of visible light increased and the recombination of photogenerated electron-hole pairs decreased for the as-obtained Gr@e-TiO<sub>2</sub>. Compared with pure TiO<sub>2</sub> as well as GO (graphene oxide)@h-TiO<sub>2</sub> prepared by conventional hydrothermal method, Gr@e-TiO<sub>2</sub> exhibited a more negative open circuit potential and higher photocurrent density for 304SS protection. The enhanced photocathodic protection performance of Gr@e-TiO<sub>2</sub> can be attributed to the large specific surface area and good charge transport efficiency of graphene.</p></div>\",\"PeriodicalId\":304,\"journal\":{\"name\":\"Electrochemistry Communications\",\"volume\":\"160 \",\"pages\":\"Article 107682\"},\"PeriodicalIF\":4.7000,\"publicationDate\":\"2024-02-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S1388248124000250/pdfft?md5=ebdcaf937613fd872e90737e19b3d017&pid=1-s2.0-S1388248124000250-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Electrochemistry Communications\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1388248124000250\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ELECTROCHEMISTRY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Electrochemistry Communications","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1388248124000250","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ELECTROCHEMISTRY","Score":null,"Total":0}
Electrodeposited graphene@TiO2 nanosheets for enhanced photocathodic protection
In this work, TiO2 was firmly attached on freestanding graphene (Gr, rather than graphene oxide or reduced graphene oxide) nanosheets (Gr@e-TiO2) by a novel electrodeposition method. The morphology, crystal structure, band gap characteristics, optical properties and photoelectric properties were systematically investigated. It is indicated that the absorption of visible light increased and the recombination of photogenerated electron-hole pairs decreased for the as-obtained Gr@e-TiO2. Compared with pure TiO2 as well as GO (graphene oxide)@h-TiO2 prepared by conventional hydrothermal method, Gr@e-TiO2 exhibited a more negative open circuit potential and higher photocurrent density for 304SS protection. The enhanced photocathodic protection performance of Gr@e-TiO2 can be attributed to the large specific surface area and good charge transport efficiency of graphene.
期刊介绍：
Electrochemistry Communications is an open access journal providing fast dissemination of short communications, full communications and mini reviews covering the whole field of electrochemistry which merit urgent publication. Short communications are limited to a maximum of 20,000 characters (including spaces) while full communications and mini reviews are limited to 25,000 characters (including spaces). Supplementary information is permitted for full communications and mini reviews but not for short communications. We aim to be the fastest journal in electrochemistry for these types of papers.
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