NDLI: From single crystal surfaces to single atoms: investigating active sites in electrocatalysis

Content Provider	Royal Society of Chemistry (RSC)
Author	O'Mullane, Anthony P.
Copyright Year	2014
Abstract	Electrocatalytic processes will undoubtedly be at the heart of energising future transportation and technology with the added importance of being able to create the necessary fuels required to do so in an environmentally friendly and cost effective manner. For this to be successful two almost mutually exclusive surface properties need to be reconciled, namely producing highly active/reactive surface sites that exhibit long term stability. This article reviews the various approaches which have been undertaken to study the elusive nature of these active sites on metal surfaces which are considered as adatoms or clusters of adatoms with low coordination number. This includes the pioneering studies at extended well defined stepped single crystal surfaces using cyclic voltammetry up to the highly sophisticated in situ electrochemical imaging techniques used to study chemically synthesised nanomaterials. By combining the information attained from single crystal surfaces, individual nanoparticles of defined size and shape, density functional theory calculations and new concepts such as mesoporous multimetallic thin films and single atom electrocatalysts new insights into the design and fabrication of materials with highly active but stable active sites can be achieved. The area of electrocatalysis is therefore not only a fascinating and exciting field in terms of realistic technological and economical benefits but also from the fundamental understanding that can be acquired by studying such an array of interesting materials.
Starting Page	4012
Ending Page	4026
Page Count	15
File Format	HTM / HTML PDF
ISSN	20403364
Volume Number	6
Issue Number	8
Journal	Nanoscale
DOI	10.1039/c4nr00419a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Cyclic voltammetry Mesoporous material Coordination number Electrochemistry Nanomaterials Density functional theory Adatom
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology

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