Colloquium Marie Sklodowska-Curie

Esta serie de coloquios ve la luz impulsada por el interés común de varios Institutos del Consejo Superior de Investigaciones Científicas (CSIC) que quieren traer a la sociedad los últimos avances científicos y la visión del mundo que surge de ellos.

El objetivo final es transmitir el mensaje de que la ciencia es un bien público que debe hacerse accesible a todos los ciudadanos. Una manera efectiva de enviar este mensaje es a través de la difusión de conocimiento que combina el rigor con la accesibilidad. Con este espíritu, esta serie quiere reunir a personalidades de renombre internacional de una variedad de campos de investigación y del mundo de la cultura, para compartir su experiencia con un amplio público.

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Contacto y sugerencias: msccsic.es

Próximo coloquio

Life and Fate of Energy Conversion Electrocatalysts

Beatriz Roldán Cuenya Department of Interface Science, Fritz Haber Institute of the Max Planck Society, Berlin, Germany
Salón de actos
Edificio central CSIC
Serrano 117

Climate change concerns have spurred a growing interest in developing environmentally friendly technologies for green energy generation and storage in the form of chemical bonds. The latter includes green H2 production from water splitting and the re-utilization of CO2 via its electrocatalytic reduction into value-added chemicals and fuels. It is therefore of particular interest to develop low cost, efficient, selective and durable electro-catalysts that can operate under mild reaction conditions. Nonetheless, in order to tailor the chemical reactivity of electrocatalysts, fundamental understanding of their structure and surface composition under reaction conditions must be obtained. It should also be kept in mind that even morphologically and chemically well-defined pre-catalysts will be susceptible to drastic modifications under operation, especially when the reaction conditions themselves change dynamically.

This talk will offer new insights into the electrocatalytic reduction of CO2 as well as the oxygen evolution reaction using model pre-catalysts ranging from single atoms, nanoparticles, thin films to single crystals. I will illustrate the need of a multi-technique operando microscopy and spectroscopy approach to gain understanding into the active state formation of complex electrocatalytic materials. Moreover, examples will be given on the correlation between the dynamically evolving structure and composition of the electro-catalysts under operando reaction conditions and their activity and selectivity. These results are expected to open up new routes for the reutilization of CO2 through its direct conversion into industrially valuable chemicals and fuels such as ethylene and ethanol and the generation of green H2.

[Emisión en directo]