TY - JOUR
T1 - Electrochemical studies of gold and chloride in ionic liquids
AU - Aldous, Leigh
AU - Silvester, D.S.
AU - Villagran, Constanza
AU - Pitner, W.R.
AU - Compton, R.G.
AU - Lagunas, M.C.
AU - Hardacre, Christopher
PY - 2006/8
Y1 - 2006/8
N2 - For the first time, the electrochemistry of gold has been studied in detail in a 'second-generation', non-haloaluminate, ionic liquid. In particular, the electrochemical behaviour of Na[AuCl4] has been investigated in 1-butyl-3-methylimidazolium bis{(tifluoromethyl)sulfonyl} imide, [C(4)mim][NTf2], over gold, platinum and glassy carbon working electrodes. The reduction of [AuCl4](-) initially forms [AuCl2](-) before deposition on the electrode as Au(0). To enable stripping of deposited gold or electrodissolution of bulk gold, the presence of chloride, trichloride or chlorine is required. Specifically trichloride and chlorine have been identified as the active species which preferentially form Au(I) and Au(III), respectively.
AB - For the first time, the electrochemistry of gold has been studied in detail in a 'second-generation', non-haloaluminate, ionic liquid. In particular, the electrochemical behaviour of Na[AuCl4] has been investigated in 1-butyl-3-methylimidazolium bis{(tifluoromethyl)sulfonyl} imide, [C(4)mim][NTf2], over gold, platinum and glassy carbon working electrodes. The reduction of [AuCl4](-) initially forms [AuCl2](-) before deposition on the electrode as Au(0). To enable stripping of deposited gold or electrodissolution of bulk gold, the presence of chloride, trichloride or chlorine is required. Specifically trichloride and chlorine have been identified as the active species which preferentially form Au(I) and Au(III), respectively.
UR - http://www.scopus.com/inward/record.url?scp=33750832367&partnerID=8YFLogxK
U2 - 10.1039/b609261f
DO - 10.1039/b609261f
M3 - Article
VL - 30
SP - 1576
EP - 1583
JO - New Journal of Chemistry
JF - New Journal of Chemistry
IS - 11
ER -