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Well‐Defined Platinum Surfaces for the Ethanol Oxidation Reaction
Author(s) -
Rizo Rubén,
PérezRodríguez Sara,
García Gonzalo
Publication year - 2019
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.201900600
Subject(s) - catalysis , materials science , nanotechnology , platinum , nanoparticle , precious metal , reactivity (psychology) , metal , electrode , porosity , single crystal , platinum nanoparticles , crystal (programming language) , chemical engineering , computer science , chemistry , organic chemistry , metallurgy , engineering , composite material , medicine , alternative medicine , programming language , pathology , crystallography
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.