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Well-defined platinum surfaces for the ethanol oxidation reaction

Well-defined platinum surfaces for the ethanol oxidation reaction
Well-defined platinum surfaces for the ethanol oxidation reaction

Direct ethanol fuel cells are a promising technology for clean energy production. The ethanol oxidation reaction (EOR) is surface sensitive and, hence, the study of single-crystal electrodes provides fundamental knowledge of the different activity of the metal crystal planes. However, for practical applications, metal nanoparticles dispersed on a porous support are generally used to enhance the efficiency and to reduce the catalyst cost. Although some research has been devoted to the development of shape-controlled nanoparticles, the finding of an efficient, cost-effective, and easily scaled-up catalytic system remains a challenge. Furthermore, the use of a suitable support with a well-defined nanoarchitecture is essential for the control of the catalyst reactivity. In this Review, a general overview of the performance of single-crystal electrodes and unsupported/supported shape-controlled nanoparticles for the EOR is presented, paying special attention to Pt surfaces. Finally, the major challenges and directions for future research are also discussed to guide the design of efficient shape-controlled catalysts for the EOR.

catalyst support, direct ethanol fuel cells, ethanol electrooxidation, nanoparticles, single crystals
Rizo, Rubén
22ec6b6e-114a-448c-9118-5e74006fdb66
Pérez-Rodríguez, Sara
13cf3679-8e13-41ee-96a9-d71f776c430c
García, Gonzalo
f4408b47-d1ea-4c14-b1f0-ac1b1ffaee2a
Rizo, Rubén
22ec6b6e-114a-448c-9118-5e74006fdb66
Pérez-Rodríguez, Sara
13cf3679-8e13-41ee-96a9-d71f776c430c
García, Gonzalo
f4408b47-d1ea-4c14-b1f0-ac1b1ffaee2a

Rizo, Rubén, Pérez-Rodríguez, Sara and García, Gonzalo (2019) Well-defined platinum surfaces for the ethanol oxidation reaction. ChemElectroChem. (doi:10.1002/celc.201900600).

Record type: Review

Abstract

Direct ethanol fuel cells are a promising technology for clean energy production. The ethanol oxidation reaction (EOR) is surface sensitive and, hence, the study of single-crystal electrodes provides fundamental knowledge of the different activity of the metal crystal planes. However, for practical applications, metal nanoparticles dispersed on a porous support are generally used to enhance the efficiency and to reduce the catalyst cost. Although some research has been devoted to the development of shape-controlled nanoparticles, the finding of an efficient, cost-effective, and easily scaled-up catalytic system remains a challenge. Furthermore, the use of a suitable support with a well-defined nanoarchitecture is essential for the control of the catalyst reactivity. In this Review, a general overview of the performance of single-crystal electrodes and unsupported/supported shape-controlled nanoparticles for the EOR is presented, paying special attention to Pt surfaces. Finally, the major challenges and directions for future research are also discussed to guide the design of efficient shape-controlled catalysts for the EOR.

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e-pub ahead of print date: 4 January 2019
Keywords: catalyst support, direct ethanol fuel cells, ethanol electrooxidation, nanoparticles, single crystals

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Local EPrints ID: 434910
URI: http://eprints.soton.ac.uk/id/eprint/434910
PURE UUID: d736cf25-a1b3-43df-adfc-15660b3a43bc

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Date deposited: 15 Oct 2019 16:30
Last modified: 04 Feb 2021 05:02

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Contributors

Author: Rubén Rizo
Author: Sara Pérez-Rodríguez
Author: Gonzalo García

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