Effect of Heteroatom on Properties of SiO2-Supported Heteropolymolybdates

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Title:Effect of Heteroatom on Properties of SiO2-Supported Heteropolymolybdates
Creators:
Spojakina, Alla
Kostova, Nina
Jirátová, Květa
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 63, 11, pp. 1927-1937
Uncontrolled Keywords:Silicomolybdates, Hydrodesulfurization of thiophene, Silica-supported heteropolymolybdates, Heterogeneous catalysis, IR spectroscopy, Phosphomolybdates, Temperature programmed reduction

Abstract

SiO<sub>2</sub>-supported trihydrogen phosphododecamolybdate acid H<sub>3</sub>PMo<sub>12</sub>O<sub>40</sub> (denoted as H<sub>3</sub>PMo) and tetrahydrogen silicododecamolybdate acid H<sub>4</sub>SiMo<sub>12</sub>O<sub>40</sub> (denoted as H<sub>4</sub>SiMo) and their lithium salts have been studied using IR spectroscopy, temperature programmed reduction and measurement of the thiophene conversion. Lacunar anions of H<sub>3</sub>PMo and, under some conditions, of H<sub>4</sub>SiMo are formed if lithium is present in the catalyst. Unlike the supported hetero polyacids, lithium combined with the analogues of defect Keggin anions formed during calcination enhances hydrodesulfurization of thiophene.

Title:Effect of Heteroatom on Properties of SiO2-Supported Heteropolymolybdates
Creators:
Spojakina, Alla
Kostova, Nina
Jirátová, Květa
Uncontrolled Keywords:Silicomolybdates, Hydrodesulfurization of thiophene, Silica-supported heteropolymolybdates, Heterogeneous catalysis, IR spectroscopy, Phosphomolybdates, Temperature programmed reduction
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:63
Number:11
Page Range:pp. 1927-1937
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19981927UNSPECIFIED
ID Code:1431
Item Type:Article
Deposited On:06 Feb 2009 17:09
Last Modified:06 Feb 2009 16:09

Citation

Spojakina, Alla; Kostova, Nina; Jirátová, Květa (1998) Effect of Heteroatom on Properties of SiO2-Supported Heteropolymolybdates. Collection of Czechoslovak Chemical Communications, 63 (11). pp. 1927-1937. ISSN 0010-0765

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