Electrochemistry in Ultrahigh Vacuum:Underpotential Deposition of Al on W from AlCl_3/1-ethyl-3-methyl-imidazolium Ambient Temperature Chloroaluminate Melts

摘要

Room temperature molten salts have emerged as a very promising class of ionic liquids with application in a variety of technologically important areas.Among the most interesting and unique properties some of these ionic liquids display is a very wide liquid temperature range and very low vapor pressure.3 Attention in the electrochemical community has been focused in part on the possibility of electro-depositing Al and Al-based alloys from AlCl_3/1-ethyl-3-methylimidazolium chloride (EMIC) ambient temperature chloroaluminate melts,which have an adjustable Lewis acidity and ionic composition dependent on the AlCl_3/RCl molar ratio (N).