Open Conference Systems, International Conference on Electrochemical Energy and Technology

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Shaping of Electrocatalysis by Tailored Nanoscale Surfaces
Vojislav R Stamenkovic

Last modified: 2014-10-15

Abstract


The research effort aimed to fundamental understanding of processes that are relevant for energy conversion and storage will be presented.  Atomic scale insight at the electrified solid-liquid interfaces is considered critical in further advancement of materials that could be implemented in electrochemical systems such as electrolyzers, batteries and fuel cells.

It has been demonstrated that fine tuning of the surface properties can lead towards unprecedented improvements in their functional properties that are relevant for energy conversion and storage [1].  This presentation will address unique research approach that is capable of revealing structure-function relationships in the design of nanomaterials for electrochemical systems.  The following topics will be discussed:  1) well-defined materials obtained by varying their surface structure, composition profile and electronic properties;  2) atomic/molecular insight into electrified solid-liquid interfaces;  3) modeling of electrochemical systems [2];  4) identification of the active and the most vulnerable surface sites under reaction conditions;  5) insight into chemical nature between the surface atoms, reactants, and molecular species in the electrolyte;  6) engineering of advanced nanomaterials with desired size, shape and composition profile [3-5];  7) ex-situ and in-situ characterization of tailored nanostructured electrochemical interfaces.

This synergistic approach encompasses highly diverse experimental and theoretical methods and has been proven to serve as a foundation in the development of novel materials with advanced properties.


Keywords


fuel cells; platinum alloys; nanoparticles

References


[1]  Stamenkovic et al. Science 315 (2007) 493.

[2]  Stamenkovic et al. Angew. Chem. 45 (2006) 2897.

[3]  Stamenkovic et al. Nature Mat. 6 (2007) 241.

[4]  van der Vliet et al. Nature Mat. 11 (2012) 1051.

[5]  Chen et al. Science 343 (2014) 1339.


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