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dc.contributor.authorWahab, A. K.
dc.contributor.authorOdedairo, T.
dc.contributor.authorLabis, J.
dc.contributor.authorHedhili, Mohamed N.
dc.contributor.authorDelavar, A.
dc.contributor.authorIdriss, H.
dc.date.accessioned2015-04-28T11:17:59Z
dc.date.available2015-04-28T11:17:59Z
dc.date.issued2013-08-13
dc.identifier.citationComparing Pt/SrTiO3 to Rh/SrTiO3 for hydrogen photocatalytic production from ethanol 2013, 3 (3-4):83 Applied Petrochemical Research
dc.identifier.issn2190-5525
dc.identifier.issn2190-5533
dc.identifier.doi10.1007/s13203-013-0033-y
dc.identifier.urihttp://hdl.handle.net/10754/550812
dc.description.abstractPhotocatalytic hydrogen production from ethanol as an example of biofuel is studied over 0.5 wt% Rh/SrTiO3 and 0.5 wt% Pt/SrTiO3 perovskite materials. The rate of hydrogen production, rH2, over Pt/SrTiO3 is found to be far higher than that observed over Rh/SrTiO3 (4 × 10−6 mol of H2 g catal. −1 min−1 (1.1 × 10−6 mol of H2 m catal. −2 min−1) compared to 0.7 × 10−6 mol of H2 g catal. −1 min−1 (5.5 × 10−8 mol of H2 m catal. −2 min−1), respectively, under UV excitation with a flux equivalent to that from the sun light (ca. 1 mW cm−2). Analyses of the XPS Rh3d and XPS Pt4f indicate that Rh is mainly present in its ionic form (Rh3+) while Pt is mainly present in its metallic form (Pt0). A fraction of the non-metallic state of Rh in the catalyst persisted even after argon ion sputtering. The tendency of Rh to be oxidized compared to Pt might be the reason behind the lower activity of the former compared to the later. On the contrary, a larger amount of methane are formed on the Rh containing catalyst compared to that observed on the Pt containing catalyst due to the capacity of Rh to break the carbon–carbon bond of the organic compound.
dc.publisherSpringer Nature
dc.relation.urlhttp://link.springer.com/10.1007/s13203-013-0033-y
dc.rightsThis article is distributed under the terms of the Creative Commons Attribution License which permits any use, dis- tribution, and reproduction in any medium, provided the original author(s) and the source are credited.
dc.subjectEthanol-photoreaction
dc.subjectXPS Rh3d
dc.subjectXPS Pt4f
dc.subjectHydrogen production
dc.subjectPerovskite materials
dc.subjectBand gap
dc.subjectSrTiO3
dc.subjectCarbon–carbon bond dissociation
dc.titleComparing Pt/SrTiO3 to Rh/SrTiO3 for hydrogen photocatalytic production from ethanol
dc.typeArticle
dc.contributor.departmentImaging and Characterization Core Lab
dc.contributor.departmentAdvanced Nanofabrication, Imaging and Characterization Core Lab
dc.identifier.journalApplied Petrochemical Research
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionSABIC: T&I Riyadh and CRI-KAUST, Riyadh, Saudi Arabia
dc.contributor.institutionKAIN, Riyadh, Saudi Arabia
kaust.personHedhili, Mohamed N.
kaust.personDelavar, A.
refterms.dateFOA2018-06-13T17:09:02Z
dc.date.published-online2013-08-13
dc.date.published-print2013-12


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