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Ordered PtSn/C Electrocatalyst: A High Performance Material for the Borohydride Electrooxidation Reaction

Electrocatalysis’ Laboratory, Chemistry Department, UNESP, Bauru 17033-360, Brazil
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Academic Editor: Luísa Margarida Martins
Catalysts 2017, 7(7), 198; https://doi.org/10.3390/catal7070198
Received: 13 March 2017 / Revised: 2 June 2017 / Accepted: 4 June 2017 / Published: 29 June 2017
(This article belongs to the Special Issue Advances in Electrocatalysis)
This work used a rotating disc electrode and quasi-steady state polarization curves to investigate the sodium borohydride electrooxidation of ordered intermetallic PtSn/C in alkaline solution. Under similar experimental conditions, PtSn/C proved to be a better electrocatalyst than Pt in an overall process that involved eight electrons. Assays performed in the presence of thiourea and S2− species evidenced that a chemical hydrolysis step took place, followed by electrochemical oxidation of the generated H2. The results presented herein suggest that PtSn/C constitutes a promising electrode material for application in alkaline borohydride fuel cell. View Full-Text
Keywords: borohydride; hydrogen; PtSn/C; electrooxidation; kinect; mechanism borohydride; hydrogen; PtSn/C; electrooxidation; kinect; mechanism
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Bortoloti, F.; Angelo, A.C.D. Ordered PtSn/C Electrocatalyst: A High Performance Material for the Borohydride Electrooxidation Reaction. Catalysts 2017, 7, 198.

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