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Published on: December 30, 2013
Deposition and morphological evolution of nanostructured palladium during potential cycling: a liquid-cell TEM study
Jie Yang1, Sagar Prabhudev2, Carmen M Andrei3
1School of Biomedical Engineering, McMaster University, Hamilton, L8S 4L7, Canada. soleyml@mcmaster.ca.
Abstract:
In order to gain better control over the functionality of Pd nanostructures used in several CO2-mitigating electrochemical energy conversion systems, it is imperative to underpin different nanoscale phenomena influencing their structural durability. Hitherto, such analyses have been carried out before/after an electrochemical treatment, but not during the entire process. Here, we demonstrate monitoring of morphological evolution in Pd nanostructures over the entire course of electrochemical treatment using a liquid-cell transmission electron microscope (TEM) set-up. Our findings reveal new insights into nanoparticle growth, dissolution, detachment, and aggregation that are relevant for the development of functional Pd nanomaterials.
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