Hydrogen production via aqueous-phase reforming of methanol over nickel modified Ce, Zr and La oxide supports

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Stekrova, Martina
dc.contributor.author Rinta-Paavola, Aleksi
dc.contributor.author Karinen, Reetta
dc.date.accessioned 2019-05-06T09:14:14Z
dc.date.available 2019-05-06T09:14:14Z
dc.date.issued 2018-04
dc.identifier.citation Stekrova , M , Rinta-Paavola , A & Karinen , R 2018 , ' Hydrogen production via aqueous-phase reforming of methanol over nickel modified Ce, Zr and La oxide supports ' , Catalysis Today , vol. 304 , pp. 143-152 . https://doi.org/10.1016/j.cattod.2017.08.030 en
dc.identifier.issn 0920-5861
dc.identifier.issn 1873-4308
dc.identifier.other PURE UUID: 71f6b10c-a532-4705-a8ff-3cb833526a4a
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/hydrogen-production-via-aqueousphase-reforming-of-methanol-over-nickel-modified-ce-zr-and-la-oxide-supports(71f6b10c-a532-4705-a8ff-3cb833526a4a).html
dc.identifier.other PURE LINK: http://www.scopus.com/inward/record.url?scp=85028365222&partnerID=8YFLogxK
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/33354751/CHEM_Stekrova_et_al_Hydrogen_production_via_aqueous_2018_Catalysis_Today.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/37695
dc.description.abstract Aqueous-phase reforming (APR) of methanol over nickel supported on zirconium, cerium and lanthanum oxides was performed in continuous laboratory scale reactor and discussed in this paper. The role of composition and physico-chemical properties of the supports were investigated and significant benefit of using mixed oxides CeO2-ZrO2 and La2O3-ZrO2 over the pure oxides, in term of methanol conversion and hydrogen production, was demonstrated. Methanol conversion of over 50% with hydrogen production efficiency of over 40% were achieved with the most active catalyst Ni/25%CeO2-ZrO2.Furthermore, catalyst stability, the most challenging issue within APR studies, was thoroughly investigated and discussed. Slight deactivation of the prepared catalysts during APR experiments or reduction was observed and addressed to the Ni particles sintering. On the other hand, other common reasons causing catalysts deactivation under APR conditions, such as leaching of Ni, changes in Ni oxidation state or changes in the supports lattice were not observed by wide range of characterization methods The most stable catalyst, Ni/10%La2O3-ZrO2, exhibited a slight decrease of MeOH conversion within two subsequent experiments (each per 6h) from 46.3% to 42.7%. en
dc.format.extent 143-152
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries Catalysis Today en
dc.relation.ispartofseries Volume 304 en
dc.rights openAccess en
dc.subject.other Catalysis en
dc.subject.other Chemistry(all) en
dc.subject.other 215 Chemical engineering en
dc.title Hydrogen production via aqueous-phase reforming of methanol over nickel modified Ce, Zr and La oxide supports en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Department of Chemical and Metallurgical Engineering
dc.subject.keyword Aqueous-phase reforming
dc.subject.keyword Cerium and lanthanum mixed oxides
dc.subject.keyword Methanol
dc.subject.keyword Nickel-based catalyst
dc.subject.keyword Zirconium
dc.subject.keyword Catalysis
dc.subject.keyword Chemistry(all)
dc.subject.keyword 215 Chemical engineering
dc.identifier.urn URN:NBN:fi:aalto-201905062815
dc.identifier.doi 10.1016/j.cattod.2017.08.030
dc.date.embargo info:eu-repo/date/embargoEnd/2020-02-03

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