Adsorption and desorption of nitrogen at 77 K on micro- and meso- porous materials: Study of transport kinetics

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17310%2F16%3AA1701GPK" target="_blank" >RIV/61988987:17310/16:A1701GPK - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Adsorption and desorption of nitrogen at 77 K on micro- and meso- porous materials: Study of transport kinetics

Original language description

The paper presents and discusses the kinetic results of nitrogen adsorption and desorption experiments performed at 77 K on one aluminium-based and three carbon-based materials differing in their microporous and mesoporous nature. The paper focuses on an examination of the transport phenomena during the adsorption/desorption experiments in different-sized pores (micropores and mesopores) identified by both Horvath-Kawazoe and modified Kelvin equations. Of the eight kinetic relations applied to sorption kinetics data, Crank's intraparticle diffusion model is found to be the best-describing. It was observed that rates of transport phenomena significantly change with gradual pore-filling/emptying. Transport proceeds at a minimal rate for a fine micropore (diameter ? 1 nm) filling region and increases steeply upon filling of wider micropores (diameter 1-2 nm). The maximum transport rate is found to be during the filling of pores between 2 and 4 nm in size.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CB - Analytical chemistry, separation

OECD FORD branch

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Project

<a href="/en/project/LO1208" target="_blank" >LO1208: Theoretical aspects of Energetic treatment of Waste and Environment Protection against negative impacts</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

MICROPOR MESOPOR MAT

ISSN

1387-1811

e-ISSN

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Volume of the periodical

227

Issue of the periodical within the volume

March

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

8

Pages from-to

202-209

UT code for WoS article

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EID of the result in the Scopus database

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