Micropore size distribution of octahedral molecular sieves (OMS)

Abstract

Argon adsorption isotherms were used to study the micropore size distribution of manganese oxide octahedral molecular sieves, OMS-1 and OMS-2. Using the cylindrical pore model, this characterization tool provides accurate pore size information for OMS-1. However, this method is less accurate when measuring the smaller pore OMS-2. The argon adsorption isotherm measurement can be used to complement other standard characterization techniques to assess the quality of certain OMS products.