CAMELIA AGAPESCU, ANCA COJOCARU, FLORENTINA GOLGOVICI,ADRIAN CRISTIAN MANEA, ADINA COTARTA<br>Electrochemical Studies of BiTeSe Films Deposition from <br>Ionic Liquids Based on Choline Chloride with Ethylene Glycol, <br>Malonic Acid or Oxalic Acid

CAMELIA AGAPESCU, ANCA COJOCARU, FLORENTINA GOLGOVICI,ADRIAN CRISTIAN MANEA, ADINA COTARTA
Electrochemical Studies of BiTeSe Films Deposition from
Ionic Liquids Based on Choline Chloride with Ethylene Glycol,
Malonic Acid or Oxalic Acid

Abstract:

The processes during the electrodeposition/dissolution of BiTeSe films on Pt and Cu electrodes were investigated by cyclic voltammetry and electrochemical impedance spectroscopy experiments. The electrolytes used were ionic liquids based on choline chloride mixed with ethylene glycol, malonic acid or oxalic acid, and the working temperature was 60 0C. Scanning the potential negatively, as a three-step mechanism, elemental selenium is first deposited at less negative potentials, followed by a direct formation of BiSeTe film and a Bi-rich ternary film. In the last step, the massive bismuth deposition proceeds together with hydrogen evolution and probably with reduction of choline cation. Deposition of BiTeSe films has been carried out in mixtures of choline chloride with malonic acid or oxalic acid on Cu plates in galvanostatic or potentiostatic conditions at 60 0C. Their characterization was performed using corrosion tests (Tafel plots, electrochemical impedance spectra). Keywords: electrodeposition, bismuth telluroselenide, ionic liquid, choline chloride, corrosion

Issue: 2012, Volume 63, Issue 9

Pages:

Download Pdf Article

This article is published under the Creative Commons Attribution 4.0 International License

<<<< back

PUBLISHING SECTION

Author Guidelines

* Paper Drafting

* Paper Template

* Ethical Statement

* Paper Submission

Ghidul Autorului (ro)

Open Access & Archiving Policy

Search Authors

LATEST NEWS
	NUMAR OMAGIAL PETRU PONI.. detalii
	Revista de Chimie - 70 de ani de aparitie neintrerupta.. detalii
	English-Romanian Dictionary for Mechanical Engineering (download pdf)