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High-Resolution Adsorption of Nitrogen on Mesoporous Alumina
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SYSNO ASEP 0101104 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title High-Resolution Adsorption of Nitrogen on Mesoporous Alumina Title Vysoce rozlišená adsorpce dusíku na mesoporézní alumině Author(s) Čejka, Jiří (UFCH-W) RID, ORCID, SAI
Žilková, Naděžda (UFCH-W) RID, ORCID
Rathouský, Jiří (UFCH-W) RID, ORCID
Zukal, Arnošt (UFCH-W) RIDSource Title Langmuir - ISSN 0743-7463
Roč. 20, - (2004), s. 7532-7539Number of pages 8 s. Language eng - English Country US - United States Keywords nitrogen ; mesoporous alumina ; adsorption Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects IAA4040411 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) GA104/02/0571 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z4040901 - UFCH-W Annotation Nitrogen adsorption isotherms on organized mesoporous aluminas prepared by several different synthesis procedures were analyzed by means of comparative plot method using Aluminiumoxid C and .alpha.-alumina as reference adsorbents. To secure the high resolution ability of this method, all the adsorption measurements were carefully performed in a relative pressure range from 10 6 to 0.99. Although some samples of organized mesoporous alumina were treated at temperatures up to 1000 .DEG.C, only the Aluminiumoxid C has proved to be suitable as a reference adsorbent. The comparative analysis of isotherms on activated aluminas has shown that this method allows the determination of very small amount of microporosity. The standard nitrogen adsorption data for Aluminiumoxid C and .alpha.-alumina are presented in a tabulated form, which consists of 91 points for each adsorbent. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2005
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