Carbon Dioxide Valorization into Methane Using Samarium Oxide-Supported Monometallic and Bimetallic Catalysts

Radwa A. El-Salamony; Ahmed S. Al-Fatesh; Kenit Acharya; Abdulaziz A.M. Abahussain; Abdulaziz Bagabas; Nadavala Siva Kumar; Ahmed A. Ibrahim; Wasim Ullah Khan; Rawesh Kumar

doi:10.3390/catal13010113

Carbon Dioxide Valorization into Methane Using Samarium Oxide-Supported Monometallic and Bimetallic Catalysts

Radwa A. El-Salamony, Ahmed S. Al-Fatesh^*, Kenit Acharya, Abdulaziz A.M. Abahussain, Abdulaziz Bagabas, Nadavala Siva Kumar, Ahmed A. Ibrahim, Wasim Ullah Khan, Rawesh Kumar^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

Samarium oxide (Sm₂O₃) is a versatile surface for CO₂ and H₂ interaction and conversion. Samarium oxide-supported Ni, samarium oxide-supported Co-Ni, and samarium oxide-supported Ru-Ni catalysts were tested for CO₂ methanation and were characterized by X-ray diffraction, nitrogen physisorption, infrared spectroscopy, H₂-temperature programmed reduction, and X-ray photoelectron spectroscopy. Limited H₂ dissociation and widely available surface carbonate and formate species over 20 wt.% Ni, dispersed over Sm₂O₃, resulted in ~98% CH₄ selectivity. The low selectivity for CO could be due to the reforming reaction between CH₄ (methanation product) and CO₂. Co-impregnation of cobalt with nickel over Sm₂O₃ had high surface adsorbed oxygen and higher CO selectivity. On the other hand, co-impregnation of ruthenium and nickel over Sm₂O₃ led to more than one catalytic active site, carbonate species, lack of formate species, and 94% CH₄ selectivity. It indicated the following route of CH₄ synthesis over Ru-Ni/Sm₂O₃; carbonate → unstable formate → CO → CH₄.

Original language	English
Article number	113
Journal	Catalysts
Volume	13
Issue number	1
DOIs	https://doi.org/10.3390/catal13010113
State	Published - Jan 2023
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2023 by the authors.

Keywords

CH selectivity
CO methanation
SmO-supported Co-Ni
SmO-supported Ni
SmO-supported Ru-Ni

ASJC Scopus subject areas

Catalysis
General Environmental Science
Physical and Theoretical Chemistry

UN SDGs

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

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10.3390/catal13010113

Cite this

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title = "Carbon Dioxide Valorization into Methane Using Samarium Oxide-Supported Monometallic and Bimetallic Catalysts",

abstract = "Samarium oxide (Sm2O3) is a versatile surface for CO2 and H2 interaction and conversion. Samarium oxide-supported Ni, samarium oxide-supported Co-Ni, and samarium oxide-supported Ru-Ni catalysts were tested for CO2 methanation and were characterized by X-ray diffraction, nitrogen physisorption, infrared spectroscopy, H2-temperature programmed reduction, and X-ray photoelectron spectroscopy. Limited H2 dissociation and widely available surface carbonate and formate species over 20 wt.% Ni, dispersed over Sm2O3, resulted in ~98% CH4 selectivity. The low selectivity for CO could be due to the reforming reaction between CH4 (methanation product) and CO2. Co-impregnation of cobalt with nickel over Sm2O3 had high surface adsorbed oxygen and higher CO selectivity. On the other hand, co-impregnation of ruthenium and nickel over Sm2O3 led to more than one catalytic active site, carbonate species, lack of formate species, and 94% CH4 selectivity. It indicated the following route of CH4 synthesis over Ru-Ni/Sm2O3; carbonate → unstable formate → CO → CH4.",

keywords = "CH selectivity, CO methanation, SmO-supported Co-Ni, SmO-supported Ni, SmO-supported Ru-Ni",

author = "El-Salamony, {Radwa A.} and Al-Fatesh, {Ahmed S.} and Kenit Acharya and Abahussain, {Abdulaziz A.M.} and Abdulaziz Bagabas and Kumar, {Nadavala Siva} and Ibrahim, {Ahmed A.} and Khan, {Wasim Ullah} and Rawesh Kumar",

note = "Publisher Copyright: {\textcopyright} 2023 by the authors.",

year = "2023",

month = jan,

doi = "10.3390/catal13010113",

language = "English",

volume = "13",

journal = "Catalysts",

issn = "2073-4344",

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T1 - Carbon Dioxide Valorization into Methane Using Samarium Oxide-Supported Monometallic and Bimetallic Catalysts

AU - El-Salamony, Radwa A.

AU - Al-Fatesh, Ahmed S.

AU - Acharya, Kenit

AU - Abahussain, Abdulaziz A.M.

AU - Bagabas, Abdulaziz

AU - Kumar, Nadavala Siva

AU - Ibrahim, Ahmed A.

AU - Khan, Wasim Ullah

AU - Kumar, Rawesh

PY - 2023/1

Y1 - 2023/1

N2 - Samarium oxide (Sm2O3) is a versatile surface for CO2 and H2 interaction and conversion. Samarium oxide-supported Ni, samarium oxide-supported Co-Ni, and samarium oxide-supported Ru-Ni catalysts were tested for CO2 methanation and were characterized by X-ray diffraction, nitrogen physisorption, infrared spectroscopy, H2-temperature programmed reduction, and X-ray photoelectron spectroscopy. Limited H2 dissociation and widely available surface carbonate and formate species over 20 wt.% Ni, dispersed over Sm2O3, resulted in ~98% CH4 selectivity. The low selectivity for CO could be due to the reforming reaction between CH4 (methanation product) and CO2. Co-impregnation of cobalt with nickel over Sm2O3 had high surface adsorbed oxygen and higher CO selectivity. On the other hand, co-impregnation of ruthenium and nickel over Sm2O3 led to more than one catalytic active site, carbonate species, lack of formate species, and 94% CH4 selectivity. It indicated the following route of CH4 synthesis over Ru-Ni/Sm2O3; carbonate → unstable formate → CO → CH4.

AB - Samarium oxide (Sm2O3) is a versatile surface for CO2 and H2 interaction and conversion. Samarium oxide-supported Ni, samarium oxide-supported Co-Ni, and samarium oxide-supported Ru-Ni catalysts were tested for CO2 methanation and were characterized by X-ray diffraction, nitrogen physisorption, infrared spectroscopy, H2-temperature programmed reduction, and X-ray photoelectron spectroscopy. Limited H2 dissociation and widely available surface carbonate and formate species over 20 wt.% Ni, dispersed over Sm2O3, resulted in ~98% CH4 selectivity. The low selectivity for CO could be due to the reforming reaction between CH4 (methanation product) and CO2. Co-impregnation of cobalt with nickel over Sm2O3 had high surface adsorbed oxygen and higher CO selectivity. On the other hand, co-impregnation of ruthenium and nickel over Sm2O3 led to more than one catalytic active site, carbonate species, lack of formate species, and 94% CH4 selectivity. It indicated the following route of CH4 synthesis over Ru-Ni/Sm2O3; carbonate → unstable formate → CO → CH4.

KW - CH selectivity

KW - CO methanation

KW - SmO-supported Co-Ni

KW - SmO-supported Ni

KW - SmO-supported Ru-Ni

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DO - 10.3390/catal13010113

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ER -

Carbon Dioxide Valorization into Methane Using Samarium Oxide-Supported Monometallic and Bimetallic Catalysts

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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