Tuesday publication update! This new publication in #NatureCommunications from @Jianbo Wu, @Xiaoqing Pan and @Wenpei Gao looks at the corrosion of electrocatalysts during electrochemical operations using the #PoseidonAX. Using electrochemical liquid cell transmission electron microscopy the authors have captured the intricate electrochemical corrosion of Pd@Pt core-shell octahedral nanoparticles, observing their transformation into Pt nanoframes.
⚡ During continuous in-situ cyclic voltammetry, redox peaks were recorded indicating an etching and deposition process. Pd atoms migrate from the core to the surface, followed by selective corrosion of Pt (111) terraces over edges or corners.
In situ microscopy simultaneously captured structural evolution and attribute site-specific Pt and Pd atomic dynamics to individual oxidation and reduction events.
This pioneering work provides shows insights into the surface reconstruction of nanoparticles during complex electrochemical processes, enhancing our understanding of catalyst degradation and paving the way for more resilient electrocatalysts. ⚡
Want to read the entire paper?
https://www.doi.org/10.1038/s41467-024-49434-3
Do you want to know how you can use the PoseidonAx with electrochemistry? Find it here?
https://www.protochips.com/gate/poseidon-ax-brochure/
