{"title":"Reductive deposition of aluminum at a water-free ionic liquid/oil interface","authors":"Naohiro Yoshida, Yohei Kuroyama, Yuko Yokoyama, Tetsuo Sakka, Naoya Nishi","doi":"10.1016/j.elecom.2023.107575","DOIUrl":null,"url":null,"abstract":"<div><p>The oil/water interface has been used as a reaction field for interfacial metal deposition via electron transfer between metal ions and reducing agents across the interface. However, the metals that can be deposited at liquid/liquid interfaces are limited to noble metals whose standard redox potential is more positive than that of water. In the present study, we designed a water-free liquid/liquid interface between a hydrophilic ionic liquid (IL) and oil (O) and succeeded in reductively depositing Al, a base metal that has a significantly negative standard redox potential and that is not reduced at water-based liquid/liquid interfaces. The morphology of the deposited Al was investigated and the reaction mechanism was explained as a combination of electron transfer and ion transfer across the IL/O interface.</p></div>","PeriodicalId":304,"journal":{"name":"Electrochemistry Communications","volume":"156 ","pages":"Article 107575"},"PeriodicalIF":4.7000,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Electrochemistry Communications","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1388248123001492","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ELECTROCHEMISTRY","Score":null,"Total":0}
引用次数: 0
Abstract
The oil/water interface has been used as a reaction field for interfacial metal deposition via electron transfer between metal ions and reducing agents across the interface. However, the metals that can be deposited at liquid/liquid interfaces are limited to noble metals whose standard redox potential is more positive than that of water. In the present study, we designed a water-free liquid/liquid interface between a hydrophilic ionic liquid (IL) and oil (O) and succeeded in reductively depositing Al, a base metal that has a significantly negative standard redox potential and that is not reduced at water-based liquid/liquid interfaces. The morphology of the deposited Al was investigated and the reaction mechanism was explained as a combination of electron transfer and ion transfer across the IL/O interface.
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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