Argon adsorption isotherms were used to study the micropore size distr
ibution of manganese oxide octahedral molecular sieves, OMS-1 and OMS-
2. Using the cylindrical pore model, this characterization tool provid
es accurate pore size information for OMS-1. However, this method is l
ess accurate when measuring the smaller pore OMS-2. The argon adsorpti
on isotherm measurement can be used to complement other standard chara
cterization techniques to assess the quality of certain OMS products.
(C) 1997 Elsevier Science B.V.