Gold nanoparticles attached NH2+ ion implantation-modified indium tin oxide electrode: Characterization and electrochemical studies |
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| Authors: | Li ShuoQi Liu Lu Hu JingBo |
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| Institution: | 1,2* 1 Key Laboratory of Beam Technology and Material Modification,Ministry of Education;Beijing Normal University,Beijing 100875,China 2 College of Chemistry,Beijing Normal University,Beijing 100875,China 3 College of Chemistry and Molecular Engineering,Peking University,Beijing 100870,China |
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| Abstract: | An NH2+ ion implantation-modified indium tin oxide film was prepared and the implantation of amino groups on the indium tin oxide substrate was verified by X-ray photoelectron spectroscopy analysis.The gold nanoparticles attached surface could be obtained by self-assembly of different sized colloidal gold nanoparticles onto the NH2+ ion implantation-modified indium tin oxide surface.By scanning electron microscopy and electrochemical techniques,the as-prepared AuNPs attached NH2+ ion implantation-modified indium tin oxide electrode was characterized and compared with bare indium tin oxide electrode.Using a Fe(CN)6]3 /Fe(CN)6]4 redox probe,the increasingly facile heterogeneous electron transfer kinetics resulting from the attached gold nanoparticle arrays was observed.The gold nanoparticle arrays exhibited high catalytic activity toward the electro-oxidation of nitric oxide,which could provide electroanalytical application for nitric oxide sensing. |
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| Keywords: | ion implantation gold nanoparticles indium tin oxide amino groups electrode |
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