Influence of the ultrasound power density in the ultrasound-assisted synthesis of Ni-based LDH catalysts for CO2 methanation

Michel Obeid; Christophe Poupin; Madona Labaki; Sharad Gupta; Samer Aouad; François Delattre; Ferdaous Ben Romdhane; François Devred; Eric M. Gaigneaux; Josefine Schnee; Edmond Abi-Aad

doi:10.1016/j.jece.2024.114059

Influence of the ultrasound power density in the ultrasound-assisted synthesis of Ni-based LDH catalysts for CO₂ methanation

Michel Obeid, Christophe Poupin, Madona Labaki, Sharad Gupta, Samer Aouad, François Delattre, Ferdaous Ben Romdhane, François Devred, Eric M. Gaigneaux, Josefine Schnee, Edmond Abi-Aad

Chemistry

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

Abstract

Ultrasound-assisted co-precipitation method was used to synthesize Ni-LDH based catalysts for CO₂ methanation. The influence of ultrasonic irradiation power density (90, 180, 270, and 360 W·L⁻¹) on the physico-chemical properties of the catalysts as well as on their catalytic behavior was studied as compared to catalysts prepared by conventional co-precipitation. Based on the XRD results, ultrasound decreases the crystallite size of LDH structure whatever the power density used as compared to the conventional method, and by increasing the ultrasound power density, the crystallite size increases. This effect on dried samples leads to an increase in the size of nickel particles on the catalysts. 90 W·L⁻¹ improves Ni particle distribution, catalyst basicity, and reducibility. Finally, Ni Us 90, the most performant catalyst in the studied series, shows a CO₂ conversion of 80 % and a CH₄ selectivity of 99.9 % at 350 ℃ with no deactivation for 100 hours under reaction conditions.

Original language	English (US)
Article number	114059
Journal	Journal of Environmental Chemical Engineering
Volume	12
Issue number	5
DOIs	https://doi.org/10.1016/j.jece.2024.114059
State	Published - Oct 2024

Keywords

CO methanation
Layered double hydroxide
Nickel
Power density
Ultrasound

ASJC Scopus subject areas

Chemical Engineering (miscellaneous)
Waste Management and Disposal
Pollution
Process Chemistry and Technology

Access to Document

10.1016/j.jece.2024.114059

Cite this

Obeid, M., Poupin, C., Labaki, M., Gupta, S., Aouad, S., Delattre, F., Ben Romdhane, F., Devred, F., Gaigneaux, E. M., Schnee, J., & Abi-Aad, E. (2024). Influence of the ultrasound power density in the ultrasound-assisted synthesis of Ni-based LDH catalysts for CO₂ methanation. Journal of Environmental Chemical Engineering, 12(5), Article 114059. https://doi.org/10.1016/j.jece.2024.114059

Obeid, M, Poupin, C, Labaki, M, Gupta, S, Aouad, S, Delattre, F, Ben Romdhane, F, Devred, F, Gaigneaux, EM, Schnee, J & Abi-Aad, E 2024, 'Influence of the ultrasound power density in the ultrasound-assisted synthesis of Ni-based LDH catalysts for CO₂ methanation', Journal of Environmental Chemical Engineering, vol. 12, no. 5, 114059. https://doi.org/10.1016/j.jece.2024.114059

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abstract = "Ultrasound-assisted co-precipitation method was used to synthesize Ni-LDH based catalysts for CO2 methanation. The influence of ultrasonic irradiation power density (90, 180, 270, and 360 W·L−1) on the physico-chemical properties of the catalysts as well as on their catalytic behavior was studied as compared to catalysts prepared by conventional co-precipitation. Based on the XRD results, ultrasound decreases the crystallite size of LDH structure whatever the power density used as compared to the conventional method, and by increasing the ultrasound power density, the crystallite size increases. This effect on dried samples leads to an increase in the size of nickel particles on the catalysts. 90 W·L−1 improves Ni particle distribution, catalyst basicity, and reducibility. Finally, Ni Us 90, the most performant catalyst in the studied series, shows a CO2 conversion of 80 % and a CH4 selectivity of 99.9 % at 350 ℃ with no deactivation for 100 hours under reaction conditions.",

keywords = "CO methanation, Layered double hydroxide, Nickel, Power density, Ultrasound",

author = "Michel Obeid and Christophe Poupin and Madona Labaki and Sharad Gupta and Samer Aouad and Fran{\c c}ois Delattre and {Ben Romdhane}, Ferdaous and Fran{\c c}ois Devred and Gaigneaux, {Eric M.} and Josefine Schnee and Edmond Abi-Aad",

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AU - Aouad, Samer

AU - Delattre, François

AU - Ben Romdhane, Ferdaous

AU - Devred, François

AU - Gaigneaux, Eric M.

AU - Schnee, Josefine

AU - Abi-Aad, Edmond

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N2 - Ultrasound-assisted co-precipitation method was used to synthesize Ni-LDH based catalysts for CO2 methanation. The influence of ultrasonic irradiation power density (90, 180, 270, and 360 W·L−1) on the physico-chemical properties of the catalysts as well as on their catalytic behavior was studied as compared to catalysts prepared by conventional co-precipitation. Based on the XRD results, ultrasound decreases the crystallite size of LDH structure whatever the power density used as compared to the conventional method, and by increasing the ultrasound power density, the crystallite size increases. This effect on dried samples leads to an increase in the size of nickel particles on the catalysts. 90 W·L−1 improves Ni particle distribution, catalyst basicity, and reducibility. Finally, Ni Us 90, the most performant catalyst in the studied series, shows a CO2 conversion of 80 % and a CH4 selectivity of 99.9 % at 350 ℃ with no deactivation for 100 hours under reaction conditions.

AB - Ultrasound-assisted co-precipitation method was used to synthesize Ni-LDH based catalysts for CO2 methanation. The influence of ultrasonic irradiation power density (90, 180, 270, and 360 W·L−1) on the physico-chemical properties of the catalysts as well as on their catalytic behavior was studied as compared to catalysts prepared by conventional co-precipitation. Based on the XRD results, ultrasound decreases the crystallite size of LDH structure whatever the power density used as compared to the conventional method, and by increasing the ultrasound power density, the crystallite size increases. This effect on dried samples leads to an increase in the size of nickel particles on the catalysts. 90 W·L−1 improves Ni particle distribution, catalyst basicity, and reducibility. Finally, Ni Us 90, the most performant catalyst in the studied series, shows a CO2 conversion of 80 % and a CH4 selectivity of 99.9 % at 350 ℃ with no deactivation for 100 hours under reaction conditions.

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