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  5. New papers are accepted in Journal of Physical Chemistry C and ACS catalysis

New papers are accepted in Journal of Physical Chemistry C and ACS catalysis

16/09/2019 - several recent works were accepted in ACS catalysis and Journal of Physical Chemistry C

Dissolution of BiVO4 Photoanodes Revealed by Time-Resolved Measurements Under Photoelectrochemical Conditions

In this work we ivestigate photocorrosion of bismuth vanadate using our recently developed photo-electrochemical on-line ICP-MS (see Methods and Equipment). We demonstrate that the corrosion rate of both V and Bi increases significantly when the electrode is illuminated with light. Several potential/light (in)dependent dissolution mechanisms are identified and studied. This work is done in collaboration with Prof. Dr. Christina Scheu and Dr. Siyuan Zhang (see our Collaborations page for details).

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Effect of Ionic Liquid Modification on the ORR Performance and Degradation Mechanism of Trimetallic PtNiMo/C Catalysts

This work is a continuation of our research on improving of Pt-based/C electrocatalysts towards acidic oxygen reduction reaction. Previously we have shown that, following the concept of “solid catalyst with ionic liquid layer (SCILL)”, Ionic Liquids (ILs) modification may result in an improved activity and stability of commerical Pt/C catalyst. In current work we take a step further by investigating Pt-alloy catalysts, i.e. trimetallic PtNiMo/C system. We demonstrate that IL may play a role in dealloying kinetics, influencing stability of the catalyst. This work is done in collaboration with Prof. Etzold's group (see our Collaborations page for details).

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Selectivity Trends Between Oxygen Evolution and Chlorine Evolution on Iridium-Based Double Perovskites in Acidic Media

Electrochemical chlorine evolution reaction (CER) and oxygen evolution reaction (OER) are industrially important reactions. Depending on an application either of the reactions is desirable, while other should be suppressed. Unfortunately, because of an apparent coupling between key binding intermediates in both reactions, separation of two reactions represents a severe challenge. More advanced fundamental understanding is required to develope catalysts or conditions with highly selectrive CER or OER. In this study CER and OER on Iridium-Based Double Perovskites is studied. This work is done in collaboration with Prof. Koper's group (see our Collaborations page for details).

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