Hybrid solgel double metal cyanide catalysts for the copolymerisation of styrene oxide and CO2This article was submitted following the 11th International Conference on Carbon Dioxide Utilization, June 2730, 2011 (Dijon-France).Electronic supplementary information (ESI) available. See DOI: 10.1039/c2gc16485j
Hybrid solgel catalysts of zinc hexacyanocobaltate and SiO 2 were prepared by co-precipitation of the double metal cyanide with silica. Hybrid catalysts prepared at moderately acidic conditions showed the best performance with respect to activity, selectivity and stability. The hybrid solgel materia...
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| creator | Dienes, Yvonne Leitner, Walter Mller, Merlin G. J Offermans, Willem K Reier, Tobias Reinholdt, Alexander Weirich, Thomas E Mller, Thomas E |
| description | Hybrid solgel catalysts of zinc hexacyanocobaltate and SiO
2
were prepared by co-precipitation of the double metal cyanide with silica. Hybrid catalysts prepared at moderately acidic conditions showed the best performance with respect to activity, selectivity and stability. The hybrid solgel materials displayed high catalytic activity for the copolymerisation of styrene oxide and carbon dioxide (up to 650 mol
SO
(mol
Zn
h)
1
) and high productivity (575 g
Polymer
g
Catalyst
1
). They also displayed good selectivity to the polymeric product (8087%), while only little cyclic styrene carbonate was formed as side product. A detailed electron microscopy study of the hybrid solgel materials showed that the active phase consisted of thin platelets containing the metals in a molar ratio
n
Zn
/
n
Co
= 2.1, whereby the double metal cyanide was closely associated with silica.
Hybrid solgel catalysts of zinc hexacyanocobaltate and SiO
2
were prepared by co-precipitation of the double metal cyanide with silica. |
| doi_str_mv | 10.1039/c2gc16485j |
| format | Article |
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2
were prepared by co-precipitation of the double metal cyanide with silica. Hybrid catalysts prepared at moderately acidic conditions showed the best performance with respect to activity, selectivity and stability. The hybrid solgel materials displayed high catalytic activity for the copolymerisation of styrene oxide and carbon dioxide (up to 650 mol
SO
(mol
Zn
h)
1
) and high productivity (575 g
Polymer
g
Catalyst
1
). They also displayed good selectivity to the polymeric product (8087%), while only little cyclic styrene carbonate was formed as side product. A detailed electron microscopy study of the hybrid solgel materials showed that the active phase consisted of thin platelets containing the metals in a molar ratio
n
Zn
/
n
Co
= 2.1, whereby the double metal cyanide was closely associated with silica.
Hybrid solgel catalysts of zinc hexacyanocobaltate and SiO
2
were prepared by co-precipitation of the double metal cyanide with silica.</description><identifier>ISSN: 1463-9262</identifier><identifier>EISSN: 1463-9270</identifier><identifier>DOI: 10.1039/c2gc16485j</identifier><language>eng</language><creationdate>2012-04</creationdate><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Dienes, Yvonne</creatorcontrib><creatorcontrib>Leitner, Walter</creatorcontrib><creatorcontrib>Mller, Merlin G. J</creatorcontrib><creatorcontrib>Offermans, Willem K</creatorcontrib><creatorcontrib>Reier, Tobias</creatorcontrib><creatorcontrib>Reinholdt, Alexander</creatorcontrib><creatorcontrib>Weirich, Thomas E</creatorcontrib><creatorcontrib>Mller, Thomas E</creatorcontrib><title>Hybrid solgel double metal cyanide catalysts for the copolymerisation of styrene oxide and CO2This article was submitted following the 11th International Conference on Carbon Dioxide Utilization, June 2730, 2011 (Dijon-France).Electronic supplementary information (ESI) available. See DOI: 10.1039/c2gc16485j</title><description>Hybrid solgel catalysts of zinc hexacyanocobaltate and SiO
2
were prepared by co-precipitation of the double metal cyanide with silica. Hybrid catalysts prepared at moderately acidic conditions showed the best performance with respect to activity, selectivity and stability. The hybrid solgel materials displayed high catalytic activity for the copolymerisation of styrene oxide and carbon dioxide (up to 650 mol
SO
(mol
Zn
h)
1
) and high productivity (575 g
Polymer
g
Catalyst
1
). They also displayed good selectivity to the polymeric product (8087%), while only little cyclic styrene carbonate was formed as side product. A detailed electron microscopy study of the hybrid solgel materials showed that the active phase consisted of thin platelets containing the metals in a molar ratio
n
Zn
/
n
Co
= 2.1, whereby the double metal cyanide was closely associated with silica.
Hybrid solgel catalysts of zinc hexacyanocobaltate and SiO
2
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2
were prepared by co-precipitation of the double metal cyanide with silica. Hybrid catalysts prepared at moderately acidic conditions showed the best performance with respect to activity, selectivity and stability. The hybrid solgel materials displayed high catalytic activity for the copolymerisation of styrene oxide and carbon dioxide (up to 650 mol
SO
(mol
Zn
h)
1
) and high productivity (575 g
Polymer
g
Catalyst
1
). They also displayed good selectivity to the polymeric product (8087%), while only little cyclic styrene carbonate was formed as side product. A detailed electron microscopy study of the hybrid solgel materials showed that the active phase consisted of thin platelets containing the metals in a molar ratio
n
Zn
/
n
Co
= 2.1, whereby the double metal cyanide was closely associated with silica.
Hybrid solgel catalysts of zinc hexacyanocobaltate and SiO
2
were prepared by co-precipitation of the double metal cyanide with silica.</abstract><doi>10.1039/c2gc16485j</doi><tpages>1</tpages></addata></record> |
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| source | Royal Society Of Chemistry Journals; Alma/SFX Local Collection |
| title | Hybrid solgel double metal cyanide catalysts for the copolymerisation of styrene oxide and CO2This article was submitted following the 11th International Conference on Carbon Dioxide Utilization, June 2730, 2011 (Dijon-France).Electronic supplementary information (ESI) available. See DOI: 10.1039/c2gc16485j |
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