Premium
Voltammetric Sizing of Inert Particles
Author(s) -
Davies Trevor J.,
Lowe Eleanor R.,
Wilkins Shelley J.,
Compton Richard G.
Publication year - 2005
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.200500152
Subject(s) - inert , sizing , voltammetry , chemistry , materials science , nanotechnology , chemical engineering , analytical chemistry (journal) , electrochemistry , chromatography , organic chemistry , electrode , engineering
The average size of inert particles is determined using a simple electrochemical procedure. Alumina particles are deposited on an edge‐plane graphite electrode, and a cyclic voltammogram is recorded. The scan rate employed varies between 0.2 and 2 V s −1 . At these scan rates the diffusion layer thickness is greater than the size of the alumina particles, minimizing the influence of the particles′ height on the observed voltammetry. The average size of the particles is determined via comparison of the experimental voltammograms with simulations.