Synthesis of Au/C and Au/Pani for anode electrodes in glucose microfluidic fuel cell |
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Authors: | M Guerra-Balcázar D Morales-Acosta F Castaneda J Ledesma-García LG Arriaga |
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Institution: | 1. Centro de Investigación y Desarrollo Tecnológico en Electroquímica, 76703 Querétaro, México;2. División de Investigación y Posgrado, Facultad de Ingeniería, Universidad Autónoma de Querétaro, 76010 Querétaro, México |
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Abstract: | Gold nanoparticles have been prepared by two methods: chemical (ex-situ, Au/C) by two phase protocol, and electrochemical (in-situ, Au/Pani) by electroreduction of gold ions on a polyaniline film and compared as anode catalysts in a glucose microfluidic fuel cell. In this paper the structural characteristics and electrocatalytic properties were investigated by X-ray diffraction and electrochemical measurements. The catalytic behavior of both anodes was tested in a microfluidic fuel cell with a reference electrode incorporated, by means of linear sweep voltammetry (LSV), showing a cathodic shift in the glucose oxidation peak for Au/Pani. Results show a higher power density (0.5 mW cm? 2) for Au/C anode compared with an already reported value, where a glucose microfluidic fuel cell was used in similar conditions. |
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