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Spectroscopic characterization of the hydroxyl groups in SAPO-40. Part II: interaction with CO and N2

1997Journal article Restricted
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dc.contributor.authorOnida, B.
dc.contributor.authorGabelica, Z.
dc.contributor.authorLourenço, J. P.
dc.contributor.authorRibeiro, M. F.
dc.contributor.authorGarrone, E.
dc.date.accessioned2013-01-04T12:16:10Z
dc.date.available2013-01-04T12:16:10Z
dc.date.issued1997
dc.date.updated2013-01-03T10:15:38Z
dc.description.abstractSAPO-40 exhibits five main OH species, describable as high-frequency ones (HF, at 3737, 3730, and 3724 cm-1) and low-frequency ones (LF1 and LF2, at 3559 and 3528 cm-1, respectively), the former probably sitting in 12-member-ring channels and the latter either in side pockets or eight-member-ring channels of the AFR structure. The low-temperature interaction of such OH species with CO shows that HF species have strictly similar acidity (comparable to that of HY zeolites), in contrast with previous results concerning H-transfer to NH3. The ease of interaction and the spectral features are in accord with the location in large cavities. The vibration of H-bonded hydroxyl has a noticeable structure with subbands. The interaction of CO with LF1 and LF2 species occurs with difficulty and yields nonlinear complexes because of the steric hindrance brought about by small cavities. Adsorption of N2 follows similar patterns.por
dc.identifier.citationOnida, B.; Gabelica, Z.; Lourenço, J. P.; Ribeiro, M. F.; Garrone, E. Spectroscopic characterization of the hydroxyl groups in SAPO-40. Part II: Interaction with CO and N2, J. Phys. Chem. B, 101, 9244-9249, 1997.por
dc.identifier.issn1520-6106
dc.identifier.otherAUT: JLO01215;
dc.identifier.urihttp://hdl.handle.net/10400.1/2051
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherAmerican Chemical Societypor
dc.subjectCO adsorptionpor
dc.subjectN2 adsorptionpor
dc.subjectSAPO-40por
dc.subjectAcidity characterizationpor
dc.subjectFTIRpor
dc.titleSpectroscopic characterization of the hydroxyl groups in SAPO-40. Part II: interaction with CO and N2por
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage9249por
oaire.citation.startPage9244por
oaire.citation.titleJournal of Physical Chemistry Bpor
oaire.citation.volume101por
person.familyNameLourenço
person.givenNameJoão P.
person.identifier634248
person.identifier.ciencia-idF81F-A1F0-2A7C
person.identifier.orcid0000-0002-0501-6672
person.identifier.ridA-7758-2008
person.identifier.scopus-author-id57195730600
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublicationf66ab886-d989-4c1d-9550-527507723c26
relation.isAuthorOfPublication.latestForDiscoveryf66ab886-d989-4c1d-9550-527507723c26

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