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Nanoskiving fabrication of size-controlled Au nanowire electrodes for electroanalysis

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Abstract

Nanoskiving, benefiting from its simple operation and high reproducibility, is a promising method to fabricate nanometer-size electrodes. In this work, we report the fabrication of Au nanowire electrodes with different shapes and well-controlled sizes through nanoskiving. Au nanowire block electrodes, membrane electrodes and tip electrodes are prepared with good reproducibility. Steady-state cyclic voltammograms (CVs) demonstrate that all these electrodes behave well as nanoband ultramicroelectrodes. A fast heterogeneous electron transfer rate constant can be extracted reliably from steady-state CVs at various size Au nanowire block electrodes by the Koutecký–Levich (K–L) method. The Au nanowire membrane electrodes demonstrate good sensitivity toward the oxidation of catecholamine and could monitor catecholamine released from rat adrenal chromaffin cells stimulated by high K+.

Graphical abstract: Nanoskiving fabrication of size-controlled Au nanowire electrodes for electroanalysis

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Publication details

The article was received on 21 Jan 2019, accepted on 06 Mar 2019 and first published on 08 Mar 2019


Article type: Paper
DOI: 10.1039/C9AN00122K
Citation: Analyst, 2019, Advance Article

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    Nanoskiving fabrication of size-controlled Au nanowire electrodes for electroanalysis

    M. Xu, Y. Zhang, K. Wang, J. Mao, W. Ji, W. Qiu, T. Feng, M. Zhang and L. Mao, Analyst, 2019, Advance Article , DOI: 10.1039/C9AN00122K

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