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The effect of WO3 modification of ZrO2 support on the Ni-catalyzed dry reforming of biogas reaction for syngas production

Χαρισίου Νικόλαος Δ., Σιακαβέλας Γιώργος, Παπαγερίδης Κυριάκος Ν., Μπακλαβαρίδης Απόστολος Ν., Tzounis, Lazaros 1987-, Γούλα Γραμματική, Gentekakis Ioannis, Πολυχρονοπούλου Κυριακή, Goula, Maria

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URIhttp://purl.tuc.gr/dl/dias/70F9B0C3-3D16-40A4-9A83-A743CCACF6DF-
Identifierhttps://www.frontiersin.org/articles/10.3389/fenvs.2017.00066/full-
Identifierhttps://doi.org/10.3389/fenvs.2017.00066-
Languageen-
TitleThe effect of WO3 modification of ZrO2 support on the Ni-catalyzed dry reforming of biogas reaction for syngas productionen
CreatorΧαρισίου Νικόλαος Δ.el
CreatorCharisiou Nikolaos D.en
CreatorΣιακαβέλας Γιώργοςel
CreatorSiakavelas Giorgosen
CreatorΠαπαγερίδης Κυριάκος Ν.el
CreatorPapageridis Kiriakos N.en
CreatorΜπακλαβαρίδης Απόστολος Ν.el
CreatorBaklavaridis Apostolos N.en
CreatorTzounis, Lazaros 1987-en
CreatorΓούλα Γραμματικήel
CreatorGoula Grammatikien
CreatorGentekakis Ioannisen
CreatorΓεντεκακης Ιωαννηςel
CreatorΠολυχρονοπούλου Κυριακήel
CreatorPolychronopoulou Kyriakien
CreatorGoula, Mariaen
PublisherFrontiers Mediaen
Content SummaryThe time-on-stream catalytic performance and stability of 8 wt. % Ni catalyst supported on two commercially available catalytic supports, ZrO2 and 15 wt.% WO3-ZrO2, was investigated under the biogas dry reforming reaction for syngas production, at 750°C and a biogas quality equal to CH4/CO2 = 1.5, that represents a common concentration of real biogas. A number of analytical techniques such as N2 adsorption/desorption (BET method), XRD, H2-TPR, NH3- and CO2-TPD, SEM, ICP, thermal analysis (TGA/DTG) and Raman spectroscopy were used in order to determine textural, structural and other physicochemical properties of the catalytic materials, and the type of carbon deposited on the catalytic surface of spent samples. These techniques were used in an attempt to understand better the effects of WO3-induced modifications on the catalyst morphology, physicochemical properties and catalytic performance. Although Ni dispersion and reducibility characteristics were found superior on the modified Ni/WZr sample than that on Ni/Zr, its dry reforming of methane (DRM) performance was inferior a result attributed to the enhanced acidity and complete loss of the basicity recorded on this catalyst, an effect that competes and finally overshadows the benefits of the other superior properties. Raman studies revealed that the degree of graphitization decreases with the insertion of WO3 in the crystalline structure of the ZrO2 support, as the ID/IG peak intensity ratio is 1.03 for the Ni/Zr and 1.29 for the Ni/WZr catalyst.en
Type of ItemPeer-Reviewed Journal Publicationen
Type of ItemΔημοσίευση σε Περιοδικό με Κριτέςel
Licensehttp://creativecommons.org/licenses/by/4.0/en
Date of Item2018-03-22-
Date of Publication2017-
SubjectBiogas utilizationen
SubjectCyclic economyen
SubjectDry reforming of methaneen
SubjectRenewable carbon sourcesen
SubjectSyngas productionen
SubjectTungstated zirconiaen
SubjectZirconiaen
Bibliographic CitationN. D. Charisiou, G. Siakavelas, K. N. Papageridis, A. Baklavaridis, L. Tzounis, G. Goula, I. V. Yentekakis, K. Polychronopoulou and M. A. Goula, "The effect of WO3 modification of ZrO2 support on the Ni-catalyzed dry reforming of biogas reaction for syngas production," Frontiers in Environmental Science, vol. 5, Oct. 2017. doi:10.3389/fenvs.2017.00066el

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