Metal nanoparticles supported on a nonconductive oxide undergo pH-dependent spontaneous polarization
Thejas S. Wesley, Max J. Hülsey, Karl S. Westendorff, Noah B. Lewis, Ethan J. Crumlin, Yuriy Román‐Leshkov, Yogesh Surendranath
Abstract
Using infrared and near-ambient pressure X-ray photoelectron spectroscopies, we demonstrate that changing the solution pH modulates the electrochemical potential of metal nanoparticles supported on nonconductive metal oxides by over 400 mV.
Topics & Concepts
NanoparticleOxidePolarization (electrochemistry)MetalMaterials scienceNanotechnologyChemical engineeringChemistryMetallurgyPhysical chemistryEngineeringElectrocatalysts for Energy ConversionElectrochemical Analysis and ApplicationsCopper-based nanomaterials and applications