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Organic Acid Adsorption on Lead Titanate Surfaces
Author(s) -
Hirakata Keigo,
Rhine Wendell E.,
Cima Michael J.
Publication year - 1995
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1995.tb08705.x
Subject(s) - carboxylate , adsorption , chemistry , carboxylic acid , titration , titanate , inorganic chemistry , molecule , infrared spectroscopy , fourier transform infrared spectroscopy , diffuse reflectance infrared fourier transform , organic chemistry , chemical engineering , catalysis , photocatalysis , ceramic , engineering
Several carboxylic acids were adsorbed on the surface of lead titanate. The total amount of adsorbed acid was determined and characterized by diffuse reflectance infrared Fourier transmission spectroscopy (DRIFTS). The acids were found to be chemisorbed on the lead titanate surface by a metal carboxylate bond. This bond forms by reaction between surface hydroxyls and the organic acid functional group. The amount of adsorbed species per unit surface area varied with each carboxylic acid studied and generally correlated with the size of the individual molecules. The experiments also demonstrate an application of a sensitive method for carbon analysis, oxygen‐based coulombic titration.