6533b832fe1ef96bd129a211

RESEARCH PRODUCT

Comments on surface structure analysis by water and nitrogen adsorption

X. WangW. ZimmermannK. C. NgA. ChakrabotyE. Robens

subject

SorbentAnalytical chemistrychemistry.chemical_elementSorptionNitrogen adsorptionCondensed Matter PhysicsNitrogenAdsorptionchemistrySpecific surface areaSurface structurePhysical chemistryPhysical and Theoretical ChemistryWater vapor

description

Specific surface area and pore size distribution are determined usually from adsorption isotherms at low temperatures using nitrogen or noble gases. These are not absolute parameters and the measuring methods are fraught with serious difficulties. General problems of sorption measurements and recent developments are discussed. To obtain information for practical purposes these measurements need to be supplemented by investigations of the sorbate/sorbent system used in practice. Results of the measurement of nitrogen and water vapour adsorption on different materials are compared.

yearjournalcountryeditionlanguage
2004-01-01Journal of Thermal Analysis and Calorimetry
https://doi.org/10.1023/b:jtan.0000028044.44316.ce