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Solid‐State Electrochemical Method for Determining Core and Shell Size in Pd@PdO Nanoparticles
Author(s) -
DoménechCarbó Antonio,
Coronado Eugenio,
Díaz Pilar,
Ribera Antonio
Publication year - 2010
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.200900336
Subject(s) - nanoparticle , cyclic voltammetry , electrochemistry , palladium , aqueous solution , voltammetry , materials science , quartz crystal microbalance , inorganic chemistry , oxide , electrode , chemical engineering , chemistry , nanotechnology , catalysis , metallurgy , organic chemistry , adsorption , engineering
Electrochemical characterization of palladium nanoparticles surrounded by a palladium oxide shell (Pd@PdO) is described from a combination of voltammetry plus electrochemical quartz crystal microbalance experiments at nanoparticle deposits on graphite electrodes in contact with aqueous H 2 SO 4 and NaOH solutions. A method for determining the metal core size and oxide shell thickness of the Pd@PdO nanoparticles, based on a combination of conventional voltammetry of nanoparticles in DMSO solution and voltammetry of nanoparticle deposits in contact with 0.10 M aqueous NaOH solution, is described.