A Water‐Free ITIES: Ionic Liquid/Oil Interface for Base Metal Nanostructure Formation – Zn Case. Issue 2 (13th December 2022)

• Record Type: Journal Article
• Authors: Nishi, Naoya; Kuroyama, Yohei; Yoshida, Naohiro; Yokoyama, Yuko; Sakka, Tetsuo
• Is Part Of: ChemElectroChem. Volume 10:Issue 2(2023)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-12-13
• Subjects: electroless deposition -- ionic liquids -- ITIES -- liquid/liquid interface -- zinc; Electrochemistry -- Periodicals; 541.37
• DOI: 10.1002/celc.202201000
• Languages: English
• ISSNs: 2196-0216

Abstract

Abstract: Reductive metal deposition at the interface between two immiscible electrolyte solutions (ITIES), the oil/water interface, is an attractive methodology to produce metal nanostructures. However, the metals that can be deposited are limited to noble metals; otherwise, water molecules are reduced. Herein, a method to overcome this limitation by utilizing a novel water‐free ITIES between a hydrophilic ionic liquid and oil was introduced. As proof‐of‐concept experiments, the reductive deposition of zinc, a base metal with a standard redox potential more negative than that of water, was successfully realized at the ionic liquid/oil interface. The morphology of the zinc nanostructures was investigated, and the reaction mechanism was discussed, in which the electron transfer and ion transfer reactions across the interface simultaneously occurred to maintain the electroneutrality of the liquids. Abstract : Reductive Zn nanodeposition : Reductive metal deposition at the interface between two immiscible electrolyte solutions (ITIES) is an attractive methodology to produce metal nanostructures. However, the metals have been limited to noble metals; otherwise, water molecules are reduced. The present study introduced how to overcome this limitation by utilizing a novel water‐free ITIES between a hydrophilic ionic liquid and oil, exemplified by the formation of Zn metal nanostructures at the interface.