Uniformity and Ordering of Inner Walls of (Al)MCM-41

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Title:Uniformity and Ordering of Inner Walls of (Al)MCM-41
Creators:
Dědeček, Jiří
Žilková, Naděžda
Čejka, Jiří
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 66, 4, pp. 567-574
Uncontrolled Keywords:(Al)MCM-41, Molecular sieves, Mesoporous materials, Heterogeneous catalysis, Co(II) ions, VIS spectroscopy

Abstract

The uniformity and ordering of the surface of (Al)MCM-41 channel walls was investigated employing bare Co(II) ions as probes. VIS spectra of Co(II) ions evidenced the presence of two types of uniform cationic sites in dehydrated Co-(Al)MCM-41 in a wide range of Si/Al/Co chemical composition (Si/Al = 11-76, Co/Al = 0.08-0.44). These cationic sites represent centers of two types of uniform domains, containing in minimum 18 surface T atoms, present on the surface of the channel walls of (Al)MCM-41. These domains represent majority of the inner surface of the (Al)MCM-41 molecular sieve. <p>

Title:Uniformity and Ordering of Inner Walls of (Al)MCM-41
Creators:
Dědeček, Jiří
Žilková, Naděžda
Čejka, Jiří
Uncontrolled Keywords:(Al)MCM-41, Molecular sieves, Mesoporous materials, Heterogeneous catalysis, Co(II) ions, VIS spectroscopy
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:66
Number:4
Page Range:pp. 567-574
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc20010567UNSPECIFIED
ID Code:1811
Item Type:Article
Deposited On:06 Feb 2009 17:12
Last Modified:06 Feb 2009 16:12

Citation

Dědeček, Jiří; Žilková, Naděžda; Čejka, Jiří (2001) Uniformity and Ordering of Inner Walls of (Al)MCM-41. Collection of Czechoslovak Chemical Communications, 66 (4). pp. 567-574. ISSN 0010-0765

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