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Catalysts 2017, 7(2), 47; doi:10.3390/catal7020047

Ruthenium–Platinum Catalysts and Direct Methanol Fuel Cells (DMFC): A Review of Theoretical and Experimental Breakthroughs

1
LAQV-REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, 4169-007 Porto, Portugal
2
Department of Physical Chemistry, University of Vigo, Lagoas (Marcosende) s/n, 36310 Vigo, Pontevedra, Spain
*
Authors to whom correspondence should be addressed.
Academic Editors: Albert Demonceau, Ileana Dragutan and Valerian Dragutan
Received: 23 November 2016 / Revised: 22 January 2017 / Accepted: 24 January 2017 / Published: 5 February 2017
(This article belongs to the Special Issue Ruthenium Catalysts)
View Full-Text   |   Download PDF [3274 KB, uploaded 5 February 2017]   |  

Abstract

The increasing miniaturization of devices creates the need for adequate power sources and direct methanol fuel cells (DMFC) are a strong option in the various possibilities under current development. DMFC catalysts are mostly based on platinum, for its outperformance in three key areas (activity, selectivity and stability) within methanol oxidation framework. However, platinum poisoning with products of methanol oxidation led to the use of alloys. Ruthenium–platinum alloys are preferred catalysts active phases for methanol oxidation from an industrial point of view and, indeed, ruthenium itself is a viable catalyst for this reaction. In addition, the route of methanol decomposition is crucial in the goal of producing H2 from water reaction with methanol. However, the reaction pathway remains elusive and new approaches, namely in computational methods, have been ensued to determine it. This article reviews the various recent theoretical approaches for determining the pathway of methanol decomposition, and systematizes their validation with experimental data, within methodological context. View Full-Text
Keywords: direct methanol fuel cells; methanol decomposition; density functional theory; reaction mechanism; heterogeneous catalysis direct methanol fuel cells; methanol decomposition; density functional theory; reaction mechanism; heterogeneous catalysis
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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. (CC BY 4.0).

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Moura, A.S.; Fajín, J.L.C.; Mandado, M.; Cordeiro, M.N.D.S. Ruthenium–Platinum Catalysts and Direct Methanol Fuel Cells (DMFC): A Review of Theoretical and Experimental Breakthroughs. Catalysts 2017, 7, 47.

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