Citation: Gang XIA, Xiao Ya HU, Cheng Yin WANG, Gen Di JIN, Rong GUO. Preparation of Nanoelectrode Ensembles by Assembly of Nano-Silver Colloid on Gold Surface[J]. Chinese Chemical Letters, ;2002, 13(2): 159-162. shu

Preparation of Nanoelectrode Ensembles by Assembly of Nano-Silver Colloid on Gold Surface

Department of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002

Received Date: 31 May 2001

A novel method for preparing silver nanoelectrode ensembles (SNEEs) and gold nanoelectrode ensembles (GNEEs) has been developed.Silver colloid particles were first absorbed to the gold electrode surface to form a monolayer silver colloid.N-hexadecyl mercaptan was then assembled on the electrode to form a thiol monolayer on which hydrophilic ions cannot be transfered.The SNEEs was prepared by removing thiol from silver colloid surface through applying an AC voltage with increasing frequency at 0.20 V (vs.SCE).Finally, GNEEs was obtained by immersing a SNEEs into 6 mol/L HNO₃ to remove the silver colloid particles.By comparison with other methods such as template method etc., this method enjoys some advantages of lower resistance, same diameter, easy preparation, controllable size and density.
- Nanoelectrode ensembles,
- microelectrode,
- silver colloid,
- self-assembled monolayers
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