Electrochemical Fabrication of Copper and Tin Micro‐Crystals from a Protic Ionic Liquid Medium,ChemistrySelect

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Electrochemical Fabrication of Copper and Tin Micro‐Crystals from a Protic Ionic Liquid Medium
ChemistrySelect ( IF 1.9 ) Pub Date : 2020-03-26 , DOI: 10.1002/slct.202000714
Akshay Vilas Bhujbal ₁ , Alok Rout ₂ , Konda A. Venkatesan ₂ , Bhalchandra M. Bhanage ₁

Affiliation

New protic ionic liquid, namely 1‐Methylpiperidinium trifluoromethane sulphonate [HmPip][OTf] was synthesized and employed for the dissolution of Cu and Sn metal precursors followed by the electrodeposition process of the subsequent metals. The cyclic voltammogram of [HmPip][OTf], CuCl₂ (80 mM) in [HmPip][OTf] and SnCl₂ (65 mM) in [HmPip][OTf] phase recorded at glassy carbon electrode (working electrode), with the glassy carbon as counter and platinum as the reference electrode. The CV indicates that Cu²⁺ underwent two‐step one‐electron transfer, whereas Sn²⁺ reduced via one step two‐electron transfer. The diffusion coefficient of Cu¹⁺, Cu²⁺ and Sn²⁺ ions in [HmPip][OTf] phase were evaluated by the CV method. The experimental temperature and the scan rate were set at 353 K and 110 mV/s respectively. Electrodeposition of Cu and Sn was done at their corresponding reduction potential determined from cyclic voltammetry. Spectroscopic investigation of the deposits obtained after electrodeposition is done by SEM‐EDX as well as XRD.

中文翻译：

从质子离子液体介质中电化学制备铜和锡微晶体

合成了新的质子离子液体，即1-甲基哌啶三氟甲烷磺酸盐[HmPip] [OTf]，并用于溶解铜和锡金属前体，然后进行后续金属的电沉积过程。在玻璃碳电极（工作电极）上记录的[HmPip] [OTf]，[HmPip] [OTf]中的CuCl ₂（80 mM）和[HmPip] [OTf]相中的SnCl ₂（65 mM）的循环伏安图玻璃碳作为对电极，铂作为参比电极。该CV表示的Cu ²⁺经历两步单电子转移，而锡²⁺通过一个步骤的双电子转移还原。Cu ¹⁺，Cu ²⁺和Sn ²⁺的扩散系数通过CV方法评估[HmPip] [OTf]相中的离子。实验温度和扫描速率分别设置为353 K和110 mV / s。以循环伏安法测定的相应还原电位进行铜和锡的电沉积。通过SEM-EDX和XRD对电沉积后获得的沉积物进行光谱研究。

更新日期：2020-03-27

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