화학공학소재연구정보센터
Journal of the Electrochemical Society, Vol.163, No.6, D259-D264, 2016
Electrodeposition of Selenium in a Hydrophobic Room-Temperature Ionic Liquid
Electrodeposition of selenium (Se) in an amide type hydrophobic room temperature ionic liquid, 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)amide (BMPTFSA) containing SeCl4 as a Se source in the presence of excess chloride on a glassy carbon electrode was studied at 25 and 50 degrees C. Raman spectroscopy showed SeCl4 in BMPTFSA with excess chloride forms an octahedral chlorocomplex of [SeCl6](2-). The reduction of [SeCl6](2-) to Se and that of Se to Se(-II) were observed by cyclic voltammetry. Electrodeposits obtained by potentiostatic electrolysis were confirmed to be metallic Se by energy dispersive X-ray, X-ray diffraction, Raman spectroscopy and X-ray photoelectron spectroscopy. (C) The Author(s) 2016. Published by ECS. All rights reserved.