2015-Sustainable Industrial Processing Summit
SIPS 2015 Volume 9: Physics, Advanced Materials, Multifunctional Materials
| Editors: | Kongoli F, Dubois JM, Gaudry E, Fournee V, Marquis F |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2015 |
| Pages: | 275 pages |
| ISBN: | 978-1-987820-32-4 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Reduced Graphene Oxide Supported Palladium-Based Alloys for Hydrogen Evolution Reaction
Jose Cardoso1; David Cardoso1; Luis Amaral1; Cesar Sequeira1; Melike Sevim2; Onder Metin2; Tansel Sener3; Diogo Santos1;1INSTITUTO SUPERIOR TECNICO, UNIVERSIDADE DE LISBOA, Lisbon, Portugal; 2ATATURK UNIVERSITY, Erzurum, Turkey; 3TUBITAK MARMARA RESEARCH CENTER ENERGY INSTITUTE, Gebze/Kocaeli, Turkey;
Type of Paper: Regular
Id Paper: 360
Topic: 21
Abstract:
The world's economy, just like our own way of life, is completely dependent on the access to energy. With the health problems arising from the pollution resulting from the consumption of fossil fuels and the unavoidable issue of the depletion of the non-renewable resources needed for their production, finding new, clean, and efficient fuels is a priority. Hydrogen is a promising alternative to be used as an energy carrier as it is the lightest and most abundant element in the Universe. Moreover, hydrogen is an extremely clean fuel as the only waste produced from its consumption is water. One way to produce hydrogen is via water electrolysis, by splitting the water molecule into oxygen and hydrogen when applying a potential difference between two electrodes immersed in an aqueous electrolyte. The main drawback of this process is its capital and operation costs, since a high overpotential is necessary for the hydrogen evolution reaction (HER) to take place. In order to overcome this issue novel efficient electrocatalysts are required to improve the electrolysis performance. This work intends to study Pd alloys as cathode electrocatalysts, namely PdAu, PdFe and PdFeAg alloys supported on reduced graphene oxide (rGO). The prepared electrodes are submitted to linear scan voltammetry, chronoamperometry and chronopotentiometry studies to characterise their activity for HER in alkaline media. The activity of the tested electrodes towards water electrolysis was established based on the obtained data.
Keywords:
Batteries; Energy; Fuels; Hydrogen; Materials;References:
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