CO2 METHANATION OVER Ni CATALYSTS SUPPORTED ON HYDROTHERMALLY PREPARED Pr-DOPED CeO2 NANOSTRUCTURES

A. I. Tsiotsias; N. D. Charisiou; C. Zotos; V. Sebastian; K. Polychronopoulou; M. A. Goula

CO2 METHANATION OVER Ni CATALYSTS SUPPORTED ON HYDROTHERMALLY PREPARED Pr-DOPED CeO2 NANOSTRUCTURES

A. I. Tsiotsias, N. D. Charisiou, C. Zotos, V. Sebastian, K. Polychronopoulou, M. A. Goula

Mechanical & Nuclear Engineering

Research output: Contribution to journal › Conference article › peer-review

Abstract

CO2 methanation is commonly regarded as a very important reaction in Power-to-Gas applications and biogas upgrading. In this study, Ni catalysts supported on Pr-doped CeO2 nanostructures of different morphology were prepared, characterized, and evaluated regarding their CO2 methanation performance. Variation of the hydrothermal treatment temperature and solution pH led to the formation of different Pr-CeO2 nanostructures. The use of a concentrated NaOH solution led to highly-ordered Pr-CeO2 nanostructures (nanorods at 100^oC and nanocubes at 180^oC), whereas the use of a less basic NH3/(NH4)2CO3 buffer led to larger nanoparticles consisting of smaller aggregated crystallites. The Ni catalysts supported on Pr-CeO2 prepared with NH3/(NH4)2CO3 were far superior in catalytic activity compared to the ones supported on Pr-CeO2 prepared with concentrated NaOH, whereas the variation of the hydrothermal treatment temperature had a much lesser effect on the catalytic activity.

Original language	British English
Pages (from-to)	888-894
Number of pages	7
Journal	European Biomass Conference and Exhibition Proceedings
State	Published - 2022
Event	30th European Biomass Conference and Exhibition, EUBCE 2022 - Virtual, Online Duration: 9 May 2022 → 12 May 2022

Keywords

carbon dioxide (CO2)
catalytic conversion
CO2 reduction
hydrogen
methane
reactivity

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Cite this

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title = "CO2 METHANATION OVER Ni CATALYSTS SUPPORTED ON HYDROTHERMALLY PREPARED Pr-DOPED CeO2 NANOSTRUCTURES",

abstract = "CO2 methanation is commonly regarded as a very important reaction in Power-to-Gas applications and biogas upgrading. In this study, Ni catalysts supported on Pr-doped CeO2 nanostructures of different morphology were prepared, characterized, and evaluated regarding their CO2 methanation performance. Variation of the hydrothermal treatment temperature and solution pH led to the formation of different Pr-CeO2 nanostructures. The use of a concentrated NaOH solution led to highly-ordered Pr-CeO2 nanostructures (nanorods at 100oC and nanocubes at 180oC), whereas the use of a less basic NH3/(NH4)2CO3 buffer led to larger nanoparticles consisting of smaller aggregated crystallites. The Ni catalysts supported on Pr-CeO2 prepared with NH3/(NH4)2CO3 were far superior in catalytic activity compared to the ones supported on Pr-CeO2 prepared with concentrated NaOH, whereas the variation of the hydrothermal treatment temperature had a much lesser effect on the catalytic activity.",

keywords = "carbon dioxide (CO2), catalytic conversion, CO2 reduction, hydrogen, methane, reactivity",

author = "Tsiotsias, {A. I.} and Charisiou, {N. D.} and C. Zotos and V. Sebastian and K. Polychronopoulou and Goula, {M. A.}",

note = "Funding Information: We gratefully acknowledge support of this work by the project “Development of new innovative low carbon energy technologies to improve excellence in the Region of Western Macedonia” (MIS 5047197) which is implemented under the Action “Reinforcement of the Research and Innovation Infrastructure”, funded by the Operational Programme {"}Competitiveness, Entrepreneurship and Innovation{"} (NSRF 2014-2020) and co-financed by Greece and the European Union (European Regional Development Fund). Publisher Copyright: {\textcopyright} 2022, ETA-Florence Renewable Energies., All rights reserved.; 30th European Biomass Conference and Exhibition, EUBCE 2022 ; Conference date: 09-05-2022 Through 12-05-2022",

year = "2022",

language = "British English",

pages = "888--894",

journal = "European Biomass Conference and Exhibition Proceedings",

issn = "2282-5819",

publisher = "ETA-Florence Renewable Energies",

}

TY - JOUR

T1 - CO2 METHANATION OVER Ni CATALYSTS SUPPORTED ON HYDROTHERMALLY PREPARED Pr-DOPED CeO2 NANOSTRUCTURES

AU - Tsiotsias, A. I.

AU - Charisiou, N. D.

AU - Zotos, C.

AU - Sebastian, V.

AU - Polychronopoulou, K.

AU - Goula, M. A.

N1 - Funding Information: We gratefully acknowledge support of this work by the project “Development of new innovative low carbon energy technologies to improve excellence in the Region of Western Macedonia” (MIS 5047197) which is implemented under the Action “Reinforcement of the Research and Innovation Infrastructure”, funded by the Operational Programme "Competitiveness, Entrepreneurship and Innovation" (NSRF 2014-2020) and co-financed by Greece and the European Union (European Regional Development Fund). Publisher Copyright: © 2022, ETA-Florence Renewable Energies., All rights reserved.

PY - 2022

Y1 - 2022

N2 - CO2 methanation is commonly regarded as a very important reaction in Power-to-Gas applications and biogas upgrading. In this study, Ni catalysts supported on Pr-doped CeO2 nanostructures of different morphology were prepared, characterized, and evaluated regarding their CO2 methanation performance. Variation of the hydrothermal treatment temperature and solution pH led to the formation of different Pr-CeO2 nanostructures. The use of a concentrated NaOH solution led to highly-ordered Pr-CeO2 nanostructures (nanorods at 100oC and nanocubes at 180oC), whereas the use of a less basic NH3/(NH4)2CO3 buffer led to larger nanoparticles consisting of smaller aggregated crystallites. The Ni catalysts supported on Pr-CeO2 prepared with NH3/(NH4)2CO3 were far superior in catalytic activity compared to the ones supported on Pr-CeO2 prepared with concentrated NaOH, whereas the variation of the hydrothermal treatment temperature had a much lesser effect on the catalytic activity.

AB - CO2 methanation is commonly regarded as a very important reaction in Power-to-Gas applications and biogas upgrading. In this study, Ni catalysts supported on Pr-doped CeO2 nanostructures of different morphology were prepared, characterized, and evaluated regarding their CO2 methanation performance. Variation of the hydrothermal treatment temperature and solution pH led to the formation of different Pr-CeO2 nanostructures. The use of a concentrated NaOH solution led to highly-ordered Pr-CeO2 nanostructures (nanorods at 100oC and nanocubes at 180oC), whereas the use of a less basic NH3/(NH4)2CO3 buffer led to larger nanoparticles consisting of smaller aggregated crystallites. The Ni catalysts supported on Pr-CeO2 prepared with NH3/(NH4)2CO3 were far superior in catalytic activity compared to the ones supported on Pr-CeO2 prepared with concentrated NaOH, whereas the variation of the hydrothermal treatment temperature had a much lesser effect on the catalytic activity.

KW - carbon dioxide (CO2)

KW - catalytic conversion

KW - CO2 reduction

KW - hydrogen

KW - methane

KW - reactivity

UR - http://www.scopus.com/inward/record.url?scp=85142475420&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:85142475420

SN - 2282-5819

SP - 888

EP - 894

JO - European Biomass Conference and Exhibition Proceedings

JF - European Biomass Conference and Exhibition Proceedings

T2 - 30th European Biomass Conference and Exhibition, EUBCE 2022

Y2 - 9 May 2022 through 12 May 2022

ER -

CO2 METHANATION OVER Ni CATALYSTS SUPPORTED ON HYDROTHERMALLY PREPARED Pr-DOPED CeO2 NANOSTRUCTURES

Abstract

Keywords

UN SDGs

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