IN-PERSON EVENT - REGISTER HERE \;to attend
By Dr \;Pablo Sebastián Fernández\, \;Universid ade Estadual de Campinas (UNICAMP)\, Brazil
\nAbstract: \;Understanding how electrocatalytic react ions affect catalyst structure at the nanoscale remains a major challenge. Here\, we use Bragg Coherent Diffraction Imaging (BCDI) to track\, for th e first time\, the strain evolution of a single Pt nanoparticle during the electrooxidation of glycerol in alkaline media. The measurements reveal a clear potential-dependent structural response across the full reaction wi ndow. By combining BCDI with ATR-SEIRAS\, we establish a direct correlatio n between strain and the adsorption of reaction intermediates. The results show that adsorbate-induced tensile strain dominates the catalyst respons e\, with strong facet-dependent behavior and mechanical coupling across th e particle. These findings demonstrate a dynamic interplay between surface chemistry and catalyst structure\, highlighting BCDI as a powerful operan do tool for probing electrocatalytic mechanisms at the nanoscale.
\nShort bio: \;Dr. Fernan dez is an Associate Professor at Unicamp\, head of the Campinas Electroche mistry Group (CampEG) and an active member at the Center for Innovation on New Energies (CINE). He was the Director of the Physical Chemistry Divisi on of SBQ (Brazilian Chemical Society\, 2020-2022). Since 2020 he is the B razilian representative of the SIBAE (Ibero-American Society of Electroche mistry). His research focuses on fundamental aspects of electrochemistry a nd electrocatalysis with an emphasis on the use and development of in situ characterization tools. His current project´s portfolio includes project s aligned with this proposal: i) PI on a FAPESP regular project (~U$S110k) \, which focus on producing value-added products from glycerol and green h ydrogen\, ii) PI on a CNPq project (~U$S400k)\, which focus on the product ion of green hydrogen on AEM and alkaline electrolyzers.
\nHosted by Dr Camilo A. Mesa Z
amora &\; Prof. María Escudero\, \;
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DTSTART:20260511T090000 DTEND:20260511T215959 LOCATION:ICN2 Seminar Room\, Campus UAB CATEGORIES:ICN2 Seminars END:VEVENT END:VCALENDAR