Electrochemical and Spectroscopic Studies of Zinc Acetate in 1‐Ethyl‐3‐methylimidazolium Acetate for Zinc Electrodeposition | Zendy

Ghazvini Maryam Shapouri | Zendy; Pulletikurthi Giridhar | Zendy; Lahiri Abhishek | Zendy; Endres Frank | Zendy

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Electrochemical and Spectroscopic Studies of Zinc Acetate in 1‐Ethyl‐3‐methylimidazolium Acetate for Zinc Electrodeposition

Author(s) -

Ghazvini Maryam Shapouri,

Pulletikurthi Giridhar,

Lahiri Abhishek,

Endres Frank

Publication year - 2016

Publication title -

chemelectrochem

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 59

ISSN - 2196-0216

DOI - 10.1002/celc.201500444

Subject(s) - zinc , raman spectroscopy , cyclic voltammetry , electrochemistry , ionic liquid , chemistry , scanning electron microscope , nuclear chemistry , inorganic chemistry , ethyl acetate , materials science , organic chemistry , electrode , catalysis , physics , composite material , optics

In this paper, we report on the electrodeposition of zinc from the ionic liquid 1‐ethyl‐3‐methylimidazolium acetate ([EMIm]OAc) with various concentrations of zinc acetate [Zn(OAc) 2 ] at 100 °C. The electrochemical behavior of zinc complexes in [EMIm]OAc was determined by cyclic voltammetry. Raman and infrared spectroscopy were employed to study the coordination of Zn 2+ ions with OAc − , and it was found that upon increasing the Zn(OAc) 2 concentration the intensity of the band for the free acetate anion weakened, due to binding with Zn 2+ ions. A minimum concentration of 4 m Zn(OAc) 2 was required to observe bulk zinc deposition, and in that case, the reducible species present in the solution were probably a mixture of Zn(OAc) 2 and Zn(OAc) + . Furthermore, the scanning electron microscopy results revealed microcrystals of zinc composed of many nanostructures distributed on the substrate, and X‐ray diffraction analysis indicated that a Zn–Au alloy along with Zn films was obtained.

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