My research focuses on nanostructured electrocatalysts for sustainable energy conversion, particularly in proton exchange membrane (PEM) water electrolyzers and fuel cells.

A graphic depiction of a platinum-alloy nanoparticle with a defect.

These devices rely on catalysts based on precious metals such as platinum (Pt) and iridium (Ir), whose scarcity and cost drive the need for more efficient, durable, and resource-lean designs.

I investigate the structure–property relationships of Pt- and Ir-based nanoparticle catalysts on high-surface-area supports.

Atomic-scale structure has a profound impact on catalytic activity and stability. Understanding it is essential for designing catalysts that meet industrial performance and lifetime requirements.

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Methods

A significant part of my work involves automated image and diffraction pattern analysis to extract quantitative insights from large datasets.

I work with experts to combine advanced electron microscopy, including identical-location and 4D scanning transmission electron microscopy (IL-STEM, 4D-STEM), with X-ray diffraction (XRD) and electrochemical testing (TF-RDE, modified floating electrode).

By uniting materials and data science, my research aims to provide a bottom-up understanding of catalyst performance and degradation, enabling the rational design of next-generation electrocatalysts for a sustainable hydrogen economy.

A graphic depiction of graphite.