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HomeMaterials Science ForumMaterials Science Forum Vol. 869Pd-Based Electrocatalysts Prepared by Borohydride...

Pd-Based Electrocatalysts Prepared by Borohydride Reduction Method for Methanol and Ethanol Electro-Oxidation in Alkaline Medium

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Abstract:

Pd/C, Au/C, AuBi/C, PdAu/C, PdAuBi/C electrocatalysts (with different atomic ratios and 20 wt% of metal loading) were prepared by borohydride reduction method using a water/2-propanol mixture as solvent, Pd (NO₃)₂.2H₂O, HAuCl₄.3H₂O and Bi (NO₃)₃.5H₂O as metal sources, carbon black Vulcan XC72 as support and NaBH₄ as reducing agent. The activities of the prepared electrocatalysts for methanol and ethanol electro-oxidation in alkaline medium were investigated by chronoamperometry using the thin porous coating technique. Chronoamperometry experiments showed that PdAu/C (Pd:Au atomic ratio of 50:50) has superior activity and stability for methanol and ethanol electro-oxidation compared with other catalysts.

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21st Brazilian Conference on Materials Science and Engineering

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Periodical:

Materials Science Forum (Volume 869)

Pages:

987-991

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.869.987

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Online since:

August 2016

Authors:

Michele Brandalise*, Marcelo Marques Tusi, Estevam Vitorio Spinacé, Almir Oliveira Neto

Keywords:

Alkaline Medium, Ethanol, Methanol, Pd-Based Electrocatalysts

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© 2016 Trans Tech Publications Ltd. All Rights Reserved

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