Exceptionally active and stable catalysts for CO2 reforming of glycerol to syngas

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buir.contributor.authorSay, Zafer
buir.contributor.authorKoçak, Yusuf
buir.contributor.authorErcan, Kerem E.
buir.contributor.authorÖzensoy, Emrah
dc.citation.spage117808en_US
dc.citation.volumeNumber256en_US
dc.contributor.authorBac, S.en_US
dc.contributor.authorSay, Zaferen_US
dc.contributor.authorKoçak, Yusufen_US
dc.contributor.authorErcan, Kerem E.en_US
dc.contributor.authorHarfouche, M.en_US
dc.contributor.authorÖzensoy, Emrahen_US
dc.contributor.authorAvcı, A. K.en_US
dc.date.accessioned2020-01-27T10:59:49Z
dc.date.available2020-01-27T10:59:49Z
dc.date.issued2019
dc.departmentDepartment of Chemistryen_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.description.abstractCO2 reforming of glycerol to syngas was studied on Al2O3-ZrO2-TiO2 (AZT) supported Rh, Ni and Co catalysts within 600–750 °C and a molar inlet CO2/glycerol ratio (CO2/G) of 1–4. Glycerol and CO2 conversions decreased in the following order: Rh/AZT > Ni/AZT > Co/AZT. Reactant conversions on Rh/AZT exceeded 90% of their thermodynamic counterparts at 750 °C and CO2/G = 2–4 at which the activity of Ni/AZT was boosted to ˜95% of the thermodynamic CO2 conversion upon increasing the residence time. The loss in CO2 conversions was below 13% during the 72 h longevity tests confirming the exceptional stability of Rh/AZT and Ni/AZT. However, Co/ AZT suffered from sintering, carbon deposition and oxidation of Co sites, demonstrated via TEM-EDX, XPS, XANES and in-situ FTIR experiments. Characterization of Rh/AZT revealed no significant signs of deactivation. Ni/AZT preserved most of its original metallic pattern and gasified carbonaceous deposits during earlier stages of the reactionen_US
dc.description.provenanceSubmitted by Onur Emek (onur.emek@bilkent.edu.tr) on 2020-01-27T10:59:49Z No. of bitstreams: 1 Bilkent-research-paper.pdf: 268963 bytes, checksum: ad2e3a30c8172b573b9662390ed2d3cf (MD5)en
dc.description.provenanceMade available in DSpace on 2020-01-27T10:59:49Z (GMT). No. of bitstreams: 1 Bilkent-research-paper.pdf: 268963 bytes, checksum: ad2e3a30c8172b573b9662390ed2d3cf (MD5) Previous issue date: 2019-11-05en
dc.embargo.release2021-11-05
dc.identifier.doi10.1016/j.apcatb.2019.117808en_US
dc.identifier.issn0926-3373
dc.identifier.urihttp://hdl.handle.net/11693/52834
dc.language.isoEnglishen_US
dc.publisherElsevieren_US
dc.relation.isversionofhttps://doi.org/10.1016/j.apcatb.2019.117808en_US
dc.source.titleApplied Catalysis B: Environmentalen_US
dc.subjectGlycerolen_US
dc.subjectCarbon dioxideen_US
dc.subjectDry reformingen_US
dc.subjectSynthesis gasen_US
dc.titleExceptionally active and stable catalysts for CO2 reforming of glycerol to syngasen_US
dc.typeArticleen_US

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