Show simple item record

dc.contributor.author
Searles, Keith
dc.contributor.author
Siddiqi, Georges
dc.contributor.author
Safonova, Olga V.
dc.contributor.author
Copéret, Christophe
dc.date.accessioned
2019-06-18T15:14:57Z
dc.date.available
2017-06-12T20:48:58Z
dc.date.available
2019-06-18T15:14:57Z
dc.date.issued
2017-04-01
dc.identifier.issn
2041-6520
dc.identifier.issn
2041-6539
dc.identifier.other
10.1039/c6sc05178b
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/130343
dc.identifier.doi
10.3929/ethz-b-000130343
dc.description.abstract
Single-site gallium centers on the surface of silica are prepared via grafting of [Ga(OSi(OtBu)3)3(THF)] on SiO2–700 followed by a thermolysis step. The resulting surface species corresponds to well-defined tetra-coordinate gallium single-sites, [([triple bond, length as m-dash]SiO)3Ga(XOSi[triple bond, length as m-dash])] (X = –H or [triple bond, length as m-dash]Si) according to IR, X-ray absorption near-edge structure and extended X-ray absorption fine structure analysis. These gallium sites show high activity, selectivity and stability for propane dehydrogenation with an initial turnover frequency of 20 per h per gallium center, propylene selectivity of ≥93% and remarkable stability over 20 h. The stability of the catalyst probably results from site-isolation of the active site on a non-reducible support such as silica, diminishing facile reduction typical of Ga2O3-based catalysts.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Royal Society of Chemistry
en_US
dc.rights.uri
http://creativecommons.org/licenses/by-nc/3.0/
dc.title
Silica-supported isolated gallium sites as highly active, selective and stable propane dehydrogenation catalysts
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution-NonCommercial 3.0 Unported
dc.date.published
2017-01-03
ethz.journal.title
Chemical Science
ethz.journal.volume
8
en_US
ethz.journal.issue
4
en_US
ethz.journal.abbreviated
Chem. Sci.
ethz.pages.start
2661
en_US
ethz.pages.end
2666
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.grant
Understanding and Controlling the Interface of Supported Catalysts
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.identifier.nebis
010587385
ethz.publication.place
Cambridge
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02020 - Dep. Chemie und Angewandte Biowiss. / Dep. of Chemistry and Applied Biosc.::02513 - Laboratorium für Anorganische Chemie / Laboratory of Inorganic Chemistry::03872 - Copéret, Christophe / Copéret, Christophe
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02020 - Dep. Chemie und Angewandte Biowiss. / Dep. of Chemistry and Applied Biosc.::02513 - Laboratorium für Anorganische Chemie / Laboratory of Inorganic Chemistry::03872 - Copéret, Christophe / Copéret, Christophe
ethz.grant.agreementno
149704
ethz.grant.fundername
SNF
ethz.grant.funderDoi
10.13039/501100001711
ethz.grant.program
Projektförderung in Mathematik, Natur- und Ingenieurwissenschaften (Abteilung II)
ethz.date.deposited
2017-06-12T20:50:08Z
ethz.source
ECIT
ethz.identifier.importid
imp593655669337025998
ethz.ecitpid
pub:193349
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2017-07-24T08:56:27Z
ethz.rosetta.lastUpdated
2022-03-28T23:06:55Z
ethz.rosetta.versionExported
true
ethz.COinS
ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.atitle=Silica-supported%20isolated%20gallium%20sites%20as%20highly%20active,%20selective%20and%20stable%20propane%20dehydrogenation%20catalysts&rft.jtitle=Chemical%20Science&rft.date=2017-04-01&rft.volume=8&rft.issue=4&rft.spage=2661&rft.epage=2666&rft.issn=2041-6520&2041-6539&rft.au=Searles,%20Keith&Siddiqi,%20Georges&Safonova,%20Olga%20V.&Cop%C3%A9ret,%20Christophe&rft.genre=article&rft_id=info:doi/10.1039/c6sc05178b&
 Search print copy at ETH Library

Files in this item

Thumbnail

Publication type

Show simple item record