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https://scholarbank.nus.edu.sg/handle/10635/115582
DC Field | Value | |
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dc.title | An FTIR and static SIMS study of the adsorption of propylene on Cu-ZSM-5 catalysts | |
dc.contributor.author | Chen, L. | |
dc.contributor.author | Chen, H.Y. | |
dc.contributor.author | Lin, J. | |
dc.contributor.author | Tan, K.L. | |
dc.contributor.author | Pan, J.S. | |
dc.date.accessioned | 2014-12-12T07:29:41Z | |
dc.date.available | 2014-12-12T07:29:41Z | |
dc.date.issued | 1997-08 | |
dc.identifier.citation | Chen, L.,Chen, H.Y.,Lin, J.,Tan, K.L.,Pan, J.S. (1997-08). An FTIR and static SIMS study of the adsorption of propylene on Cu-ZSM-5 catalysts. Surface Review and Letters 4 (4) : 607-611. ScholarBank@NUS Repository. | |
dc.identifier.issn | 0218625X | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/115582 | |
dc.description.abstract | Diffuse reflectance infrared spectroscopy and static secondary ion mass spectrometry (SIMS) were employed to study the surface species formed during the adsorption and reaction of propylene on a copper-exchanged ZSM-5 catalyst. Propylene showed characteristics of chemisorption on Cu-ZSM-5 at room temperature and total decomposition to CO, CO2 and CH4 at 350°C. The ir bands of =C-H stretching at 3101 cm-1, =C-C stretching at 916 cm-1 and C=CH2 twisting at 575 cm-1 for propylene disappeared upon adsorption, indicating the breaking of the C=C double bond, while the decrease in the signal intensity of zeolite isolated and vicinal SiOH groups at 3700 and 3592 cm-1 implied that the adsorbed di-σ species was bound to zeolite SiO-. Static SIMS showed two distinguished peaks at 73 and 147 amu, which were assigned to the adsorbed species H2OSi2(C3H5O2) due to the interaction of propylene with ZSM-5 and Cu-ZSM-5. The adsorption and reaction of propylene were enhanced by the presence of Cu+ in ZSM-5. The mechanism for these processes was discussed. | |
dc.source | Scopus | |
dc.type | Article | |
dc.contributor.department | INST OF MATERIALS RESEARCH & ENGINEERING | |
dc.contributor.department | PHYSICS | |
dc.description.sourcetitle | Surface Review and Letters | |
dc.description.volume | 4 | |
dc.description.issue | 4 | |
dc.description.page | 607-611 | |
dc.description.coden | SRLEF | |
dc.identifier.isiut | NOT_IN_WOS | |
Appears in Collections: | Staff Publications |
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