Performance increase of microfluidic formic acid fuel cell using Pd/MWCNTs as catalyst |
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Authors: | D Morales-Acosta |
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Affiliation: | Centro de Investigación y Desarrollo Tecnológico en Electroquímica, S.C. Parque Tecnológico Querétaro Sanfandila, P.O. Box 064, Pedro Escobedo, 76703 Querétaro, Mexico |
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Abstract: | This paper shows that the combination of an O2 saturated acidic fluid setup (O2-setup) and a composite of Pd nanoparticles supported on multiwalled-carbon nanotubes (Pd/MWCNTs) as anode catalyst material, results in the improvement of microfluidic fuel cell performance. Microfluidic fuel cells were constructed and evaluated at low HCOOH concentrations (0.1 and 0.5 M) using Pd/V XC-72 and Pd/MWCNTs as anode and Pt/V XC-72 as cathode electrode materials, respectively. The results show a higher power density (2.9 mW cm−2) for this cell when compared to the value reported in the literature that considers a commercial Pd/V XC-72 and 3.3 mW cm−2 using a Pd/MWCNTs with a 50% less Pd loading than that commercial Pd/V XC-72. |
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Keywords: | Microfluidic fuel cell Formic acid Palladium nanoparticles Carbon nanotubes |
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