LAPSE:2023.23970
Published Article
LAPSE:2023.23970
Novel Ni/Ce(Ti)ZrO2 Catalysts for Methane Dry Reforming Prepared in Supercritical Alcohol Media
March 27, 2023
Abstract
To achieve a high activity and coking stability of nickel catalysts in dry reforming of methane, materials comprised of ceria−zirconia doped by Ti were investigated as supports. Ceria−zirconia supports doped with titanium were prepared either via the Pechini method or by synthesis in supercritical alcohol media. Ni-containing catalysts were prepared by two techniques: standard incipient wetness impregnation and one-pot synthesis. The catalytic reaction of DRM to synthesis gas was carried out in the 600−750 °C range over 5% wt. Ni/Ce(Ti)ZrO2. Dried and calcined supports and catalysts were characterized by physicochemical methods including N2 adsorption, XRD, Raman, H2-TPR, and HRTEM. Both preparation methods led to formation of solid solution with cubic fluorite-like structure, as well as after addition of Ti. Introduction of Ti should provide improved oxygen storage capacity and mobility of support oxygen. The highest activity was observed with the catalyst of 5% wt. Ni/Ce0.75Ti0.2Zr0.05O2−δ composition due to optimized oxide support structure and support oxygen mobility.
To achieve a high activity and coking stability of nickel catalysts in dry reforming of methane, materials comprised of ceria−zirconia doped by Ti were investigated as supports. Ceria−zirconia supports doped with titanium were prepared either via the Pechini method or by synthesis in supercritical alcohol media. Ni-containing catalysts were prepared by two techniques: standard incipient wetness impregnation and one-pot synthesis. The catalytic reaction of DRM to synthesis gas was carried out in the 600−750 °C range over 5% wt. Ni/Ce(Ti)ZrO2. Dried and calcined supports and catalysts were characterized by physicochemical methods including N2 adsorption, XRD, Raman, H2-TPR, and HRTEM. Both preparation methods led to formation of solid solution with cubic fluorite-like structure, as well as after addition of Ti. Introduction of Ti should provide improved oxygen storage capacity and mobility of support oxygen. The highest activity was observed with the catalyst of 5% wt. Ni/Ce0.75Ti0.2Zr0.05O2−δ composition due to optimized oxide support structure and support oxygen mobility.
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Keywords
biogas, ceria–zirconia, dry reforming of methane, supercritical synthesis
Subject
Suggested Citation
Bespalko Y, Smal E, Simonov M, Valeev K, Fedorova V, Krieger T, Cherepanova S, Ishchenko A, Rogov V, Sadykov V. Novel Ni/Ce(Ti)ZrO2 Catalysts for Methane Dry Reforming Prepared in Supercritical Alcohol Media. (2023). LAPSE:2023.23970
Author Affiliations
Bespalko Y: Department of Heterogeneous Catalysis, Boreskov Institute of Catalysis, 630090 Novosibirsk, Russia
Smal E: Department of Heterogeneous Catalysis, Boreskov Institute of Catalysis, 630090 Novosibirsk, Russia; Department of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia [ORCID]
Simonov M: Department of Heterogeneous Catalysis, Boreskov Institute of Catalysis, 630090 Novosibirsk, Russia; Department of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia [ORCID]
Valeev K: Department of Heterogeneous Catalysis, Boreskov Institute of Catalysis, 630090 Novosibirsk, Russia
Fedorova V: Department of Heterogeneous Catalysis, Boreskov Institute of Catalysis, 630090 Novosibirsk, Russia
Krieger T: Department of Heterogeneous Catalysis, Boreskov Institute of Catalysis, 630090 Novosibirsk, Russia; Department of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia
Cherepanova S: Department of Heterogeneous Catalysis, Boreskov Institute of Catalysis, 630090 Novosibirsk, Russia; Department of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia
Ishchenko A: Department of Heterogeneous Catalysis, Boreskov Institute of Catalysis, 630090 Novosibirsk, Russia; Department of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia
Rogov V: Department of Heterogeneous Catalysis, Boreskov Institute of Catalysis, 630090 Novosibirsk, Russia; Department of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia
Sadykov V: Department of Heterogeneous Catalysis, Boreskov Institute of Catalysis, 630090 Novosibirsk, Russia; Department of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia [ORCID]
Smal E: Department of Heterogeneous Catalysis, Boreskov Institute of Catalysis, 630090 Novosibirsk, Russia; Department of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia [ORCID]
Simonov M: Department of Heterogeneous Catalysis, Boreskov Institute of Catalysis, 630090 Novosibirsk, Russia; Department of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia [ORCID]
Valeev K: Department of Heterogeneous Catalysis, Boreskov Institute of Catalysis, 630090 Novosibirsk, Russia
Fedorova V: Department of Heterogeneous Catalysis, Boreskov Institute of Catalysis, 630090 Novosibirsk, Russia
Krieger T: Department of Heterogeneous Catalysis, Boreskov Institute of Catalysis, 630090 Novosibirsk, Russia; Department of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia
Cherepanova S: Department of Heterogeneous Catalysis, Boreskov Institute of Catalysis, 630090 Novosibirsk, Russia; Department of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia
Ishchenko A: Department of Heterogeneous Catalysis, Boreskov Institute of Catalysis, 630090 Novosibirsk, Russia; Department of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia
Rogov V: Department of Heterogeneous Catalysis, Boreskov Institute of Catalysis, 630090 Novosibirsk, Russia; Department of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia
Sadykov V: Department of Heterogeneous Catalysis, Boreskov Institute of Catalysis, 630090 Novosibirsk, Russia; Department of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia [ORCID]
Journal Name
Energies
Volume
13
Issue
13
Article Number
E3365
Year
2020
Publication Date
2020-07-01
ISSN
1996-1073
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PII: en13133365, Publication Type: Journal Article
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LAPSE:2023.23970
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https://doi.org/10.3390/en13133365
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