Electrochemical studies of gold and chloride in ionic liquids

被引:99
作者
Aldous, Leigh
Silvester, Debbie S.
Villagran, Constanza
Pitner, William R.
Compton, Richard G.
Lagunas, M. Cristina [1 ]
Hardacre, Christopher
机构
[1] Queens Univ Belfast, Sch Chem & Chem Engn, QUILL Ctr, Belfast BT9 5AG, Antrim, North Ireland
[2] Univ Oxford, Phys & Theoret Chem Lab, Oxford OX1 3QZ, England
[3] Merck KGaA, PLS Ion Liquids, D-64271 Darmstadt, Germany
基金
英国工程与自然科学研究理事会;
关键词
D O I
10.1039/b609261f
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
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.
引用
收藏
页码:1576 / 1583
页数:8
相关论文
共 52 条
  • [1] Hydrophobic, highly conductive ambient-temperature molten salts
    Bonhote, P
    Dias, AP
    Papageorgiou, N
    Kalyanasundaram, K
    Gratzel, M
    [J]. INORGANIC CHEMISTRY, 1996, 35 (05) : 1168 - 1178
  • [2] In situ STM investigation of gold reconstruction and of silicon electrodeposition on Au(111) in the room temperature ionic liquid 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide
    Borisenko, N
    El Abedin, SZ
    Endres, F
    [J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (12) : 6250 - 6256
  • [3] PREPARATION, PROPERTIES, AND VIBRATIONAL-SPECTRA OF COMPLEXES CONTAINING AUCL2-, AUBR2-, AND AUL2-IONS
    BRAUNSTE.P
    CLARK, RJH
    [J]. JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1973, (17): : 1845 - 1848
  • [4] Non-haloaluminate room-temperature ionic liquids in electrochemistry - A review
    Buzzeo, MC
    Evans, RG
    Compton, RG
    [J]. CHEMPHYSCHEM, 2004, 5 (08) : 1106 - 1120
  • [5] Stabilized and size-tunable gold nanoparticles formed in a quaternary ammonium-based room-temperature ionic liquid under γ-irradiation
    Chen, SM
    Liu, YD
    Wu, GZ
    [J]. NANOTECHNOLOGY, 2005, 16 (10) : 2360 - 2364
  • [6] Stoichiometric and catalytic reactions of gold utilizing ionic liquids
    Deetlefs, M
    Raubenheimer, HG
    Esterhuysen, MW
    [J]. CATALYSIS TODAY, 2002, 72 (1-2) : 29 - 41
  • [7] ELECTROWINNING COUPLED TO GOLD LEACHING BY ELECTROGENERATED CHLORINE .1. AU(III)-AU(I)/AU KINETICS IN AQUEOUS CL2/CL- ELECTROLYTES
    DIAZ, MA
    KELSALL, GH
    WELHAM, NJ
    [J]. JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1993, 361 (1-2): : 25 - 38
  • [8] Electrodeposition of silver particles and gold nanoparticles from ionic liquid-crystal precursors
    Dobbs, William
    Suisse, Jean-Moise
    Douce, Laurent
    Welter, Richard
    [J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2006, 45 (25) : 4179 - 4182
  • [9] DONAHUE FM, 1985, J ELECTROCHEM SOC, V132, pC372
  • [10] Metal bis{(trifluoromethyl)sulfonyl}amide complexes: highly efficient Friedel-Crafts acylation catalysts
    Earle, MJ
    Hakala, U
    McAuley, BJ
    Nieuwenhuyzen, M
    Ramani, A
    Seddon, KR
    [J]. CHEMICAL COMMUNICATIONS, 2004, (12) : 1368 - 1369