Dissolution Heterogeneity Observed in Anisotropic Ruthenium Dioxide Nanocrystals via Liquid-Phase Transmission Electron Microscopy

Title	Dissolution Heterogeneity Observed in Anisotropic Ruthenium Dioxide Nanocrystals via Liquid-Phase Transmission Electron Microscopy
Authors	S. Avery Vigil, Ivan A. Moreno-Hernandez
Magazine	Journal of the American Chemical Society
Date	04/10/2024
DOI	10.1021/jacs.3c13709
Introduction	Noble metal oxides such as ruthenium dioxide act as highly efficient electrocatalysts for anodic reactions in acidic solutions; however, their dissolution during electrochemical operations restricts large-scale applications in renewable energy systems. Understanding the dissolution dynamics of nanocrystals is fundamental for their practical implementation. This study reveals nanoscale heterogeneity in the dissolution of ruthenium dioxide nanocrystals using liquid-phase transmission electron microscopy under oxidising conditions. The study permits direct observation of how distinct crystallographic facets dissolve, providing a unique comparison of their stability. The findings disclose significant heterogeneity in facet stability due to nanoscale strains, highlighting the role of nanoscale heterogeneity in macroscopic electrocatalyst stability. This characterisation methodology can be critical in future electrocatalyst research.
Quote	S. Avery Vigil and Ivan A. Moreno-Hernandez. Dissolution Heterogeneity Observed in Anisotropic Ruthenium Dioxide Nanocrystals via Liquid-Phase Transmission Electron Microscopy. J. Am. Chem. Soc. 2024. DOI: 10.1021/jacs.3c13709
Element	Ruthenium (Ru)

You have successfully subscribed! Check your inbox soon to receive great emails from this sender.

NEED HELP?