Zur Kurzanzeige

dc.contributor.author
Hemberger, Patrick
dc.contributor.author
Custodis, Victoria B.F.
dc.contributor.author
Bodi, Andras
dc.contributor.author
Gerber, Thomas
dc.contributor.author
van Bokhoven, Jeroen A.
dc.date.accessioned
2017-09-13T14:09:07Z
dc.date.available
2017-09-13T11:41:15Z
dc.date.available
2017-09-13T14:09:07Z
dc.date.issued
2017
dc.identifier.other
10.1038/ncomms15946
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/184609
dc.identifier.doi
10.3929/ethz-b-000184609
dc.description.abstract
Catalytic fast pyrolysis is a promising way to convert lignin into fine chemicals and fuels, but current approaches lack selectivity and yield unsatisfactory conversion. Understanding the pyrolysis reaction mechanism at the molecular level may help to make this sustainable process more economic. Reactive intermediates are responsible for product branching and hold the key to unveiling these mechanisms, but are notoriously difficult to detect isomer-selectively. Here, we investigate the catalytic pyrolysis of guaiacol, a lignin model compound, using photoelectron photoion coincidence spectroscopy with synchrotron radiation, which allows for isomer-selective detection of reactive intermediates. In combination with ambient pressure pyrolysis, we identify fulvenone as the central reactive intermediate, generated by catalytic demethylation to catechol and subsequent dehydration. The fulvenone ketene is responsible for the phenol formation. This technique may open unique opportunities for isomer-resolved probing in catalysis, and holds the potential for achieving a mechanistic understanding of complex, real-life catalytic processes.
en_US
dc.language.iso
en
en_US
dc.publisher
Nature Publishing Group
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.title
Understanding the mechanism of catalytic fast pyrolysis by unveiling reactive intermediates in heterogeneous catalysis
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2017-06-29
ethz.journal.title
Nature Communications
ethz.journal.volume
8
en_US
ethz.pages.start
15946
en_US
ethz.size
9 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.grant
Understanding and manipulating free radicals in lignin for a controlled depolymerization to chemicals
en_US
ethz.identifier.scopus
ethz.publication.place
London
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.::02516 - Inst. f. Chemie- und Bioingenieurwiss. / Inst. Chemical and Bioengineering::03746 - Van Bokhoven, Jeroen A. / Van Bokhoven, Jeroen A.
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.::02516 - Inst. f. Chemie- und Bioingenieurwiss. / Inst. Chemical and Bioengineering::03746 - Van Bokhoven, Jeroen A. / Van Bokhoven, Jeroen A.
en_US
ethz.grant.agreementno
136892
ethz.grant.fundername
SNF
ethz.grant.funderDoi
10.13039/501100001711
ethz.grant.program
NFP < 60: Gesuch
ethz.date.deposited
2017-09-13T11:41:16Z
ethz.source
FORM
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2017-09-13T14:09:09Z
ethz.rosetta.lastUpdated
2019-02-02T11:49:59Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.atitle=Understanding%20the%20mechanism%20of%20catalytic%20fast%20pyrolysis%20by%20unveiling%20reactive%20intermediates%20in%20heterogeneous%20catalysis&rft.jtitle=Nature%20Communications&rft.date=2017&rft.volume=8&rft.spage=15946&rft.au=Hemberger,%20Patrick&Custodis,%20Victoria%20B.F.&Bodi,%20Andras&Gerber,%20Thomas&van%20Bokhoven,%20Jeroen%20A.&rft.genre=article&
 Suchen via SFX

Dateien zu diesem Eintrag

Thumbnail

Publikationstyp

Zur Kurzanzeige