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International Journal of Electrochemistry
Volume 2014, Article ID 239270, 6 pages
Research Article

Pd-Au Electrocatalysts for Hydrogen Evolution Reaction at Neutral pH

1Department of Chemistry, South-West University “Neofit Rilski”, 2700 Blagoevgrad, Bulgaria
2Department of Physical Chemistry, Plovdiv University “Paisii Hilendarski”, 4000 Plovdiv, Bulgaria
3Laboratory of Inorganic Materials (LIM), Chemical Process & Energy Resources Institute, Center for Research and Technology-Hellas (CPERI/CERTH), Thermi, 57001 Thessaloniki, Greece
4Department of Biochemistry and Microbiology, Plovdiv University “Paisii Hilendarski”, 4000 Plovdiv, Bulgaria

Received 31 December 2013; Revised 23 February 2014; Accepted 10 March 2014; Published 31 March 2014

Academic Editor: Benjamín R. Scharifker

Copyright © 2014 Elitsa Chorbadzhiyska et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Pd-Au codeposits with different ratio of both metals were electrodeposited on carbon felt, characterized by scanning electron microscopy, and investigated as electrocatalysts towards hydrogen evolution reaction in neutral phosphate buffer solution. The quantities of the produced hydrogen gas with different electrocatalysts, estimated from data obtained by chronoamperometry, were confirmed by mass spectrometry analysis. The highest hydrogen evolution rate was achieved with the electrocatalysts, produced from electrolyte with equal Pd and Au content.