引用本文:
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.
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.
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.
Preparation of Nanoelectrode Ensembles by Assembly of Nano-Silver Colloid on Gold Surface
摘要:
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.
English
Preparation of Nanoelectrode Ensembles by Assembly of Nano-Silver Colloid on Gold Surface
Abstract:
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.
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Key words:
- Nanoelectrode ensembles
- / microelectrode
- / silver colloid
- / self-assembled monolayers
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