Mono- and bimetallic metal catalysts based on Ni and Ru supported on alumina-coated monoliths for CO<sub>2</sub> methanation

Bustinza, Ainhoa; Frías, Marina; Liu, Yuefeng; García‐Bordejé, Enrique

doi:10.1039/d0cy00639d

Cited by 24 publications

(14 citation statements)

References 45 publications

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“…It was observed that the most suitable amount of ruthenium that improves the activity of the nickel catalyst is 1 wt%, the best value being 0.5 wt% in the case of platinum, reaching a high conversion at a lower temperature. A similar conclusion was found by Bustinza et al [26], by incorporating ruthenium in different proportions and order on a nickel (12.7 wt%) catalyst supported in alumina-coated monolith. In this case, the best conversion in the methanation reaction was achieved for catalysts with 1 wt% of Ru.…”

Section: Introductionsupporting

confidence: 86%

Effect of the Addition of Alkaline Earth and Lanthanide Metals for the Modification of the Alumina Support in Ni and Ru Catalysts in CO2 Methanation

et al. 2021

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In order to reduce greenhouse gas emissions, which are reaching alarming levels in the atmosphere, capture, recovery, and transformation of carbon dioxide emitted to methane is considered a potentially profitable process. This transformation, known as methanation, is a catalytic reaction that mainly uses catalysts based on noble metals such as Ru and, although with less efficiency, on transition metals such as Ni. In order to improve the efficiency of these conventional catalysts, the effect of adding alkaline earth metals (Ba, Ca, or Mg at 10 wt%) and lanthanides (La or Ce at 14 wt%) to nickel (13 wt%), ruthenium (1 wt%), or both-based catalysts has been studied at temperatures between 498 and 773 K and 10 bar pressure. The deactivation resistance in presence of H2S was also monitored. The incorporation of La into the catalyst produces interactions between active metal Ni, Ru, or Ru-Ni and the alumina support, as determined by the characterization. This fact results in an improvement in the catalytic activity of the 13Ni/Al2O3 catalyst, which achieves a methane yield of 82% at 680 K for 13Ni/14La-Al2O3, in addition to an increase in H2S deactivation resistance. Furthermore, 89% was achieved for 1Ru-13Ni/14La-Al2O3 at 651 K, but it showed to be more vulnerable to H2S presence.

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Section: Introductionsupporting

confidence: 86%

Effect of the Addition of Alkaline Earth and Lanthanide Metals for the Modification of the Alumina Support in Ni and Ru Catalysts in CO2 Methanation

et al. 2021

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“…NiRu bimetallic catalysts are also viable candidates to be studied under more industrial-like conditions. Bustinza et al [ 99 ] prepared bimetallic NiRu structured monolithic catalysts with low Ru contents by homogeneously dispersing Ni and Ru precursors over alumina washcoated monoliths. Through an appropriate preparation method, Ni was supported in the form of small nanoparticles (2–4 nm), while Ru was atomically dispersed over the structured support.…”

Section: Promotion With Noble Metalsmentioning

confidence: 99%

Bimetallic Ni-Based Catalysts for CO2 Methanation: A Review

et al. 2020

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CO2 methanation has recently emerged as a process that targets the reduction in anthropogenic CO2 emissions, via the conversion of CO2 captured from point and mobile sources, as well as H2 produced from renewables into CH4. Ni, among the early transition metals, as well as Ru and Rh, among the noble metals, have been known to be among the most active methanation catalysts, with Ni being favoured due to its low cost and high natural abundance. However, insufficient low-temperature activity, low dispersion and reducibility, as well as nanoparticle sintering are some of the main drawbacks when using Ni-based catalysts. Such problems can be partly overcome via the introduction of a second transition metal (e.g., Fe, Co) or a noble metal (e.g., Ru, Rh, Pt, Pd and Re) in Ni-based catalysts. Through Ni-M alloy formation, or the intricate synergy between two adjacent metallic phases, new high-performing and low-cost methanation catalysts can be obtained. This review summarizes and critically discusses recent progress made in the field of bimetallic Ni-M (M = Fe, Co, Cu, Ru, Rh, Pt, Pd, Re)-based catalyst development for the CO2 methanation reaction.

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“…Bustinza et al successfully designed bimetallic Ru-Ni based alumina coated monoliths using a consecutive impregnation method for CO 2 methanation with low pressure drop at high space velocities. 295 Recently, Chaudret and coworkers reported a surface engineering technique to fabricate an Fe-Ni catalytic network for selective magnetically induced CO 2 hydrogenation towards CH 4 under mild conditions (Fig. 18).…”

Section: Metal Nps As Active Sites For Co 2 Conversionmentioning

confidence: 99%

Recent progress in materials development for CO₂conversion: issues and challenges

et al. 2021

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Mono- and bimetallic metal catalysts based on Ni and Ru supported on alumina-coated monoliths for CO₂ methanation

Abstract: A bimetallic catalyst consisting of Ni nanoparticles interspersed with atomic Ru on alumina coated monolith afforded higher activity than other mono and bimetallic catalysts in CO2 methanation, providing low pressure drop at high space velocity.

Cited by 24 publications

References 45 publications

Effect of the Addition of Alkaline Earth and Lanthanide Metals for the Modification of the Alumina Support in Ni and Ru Catalysts in CO2 Methanation

Effect of the Addition of Alkaline Earth and Lanthanide Metals for the Modification of the Alumina Support in Ni and Ru Catalysts in CO2 Methanation

Bimetallic Ni-Based Catalysts for CO2 Methanation: A Review

Recent progress in materials development for CO₂conversion: issues and challenges

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Mono- and bimetallic metal catalysts based on Ni and Ru supported on alumina-coated monoliths for CO2 methanation

Abstract: A bimetallic catalyst consisting of Ni nanoparticles interspersed with atomic Ru on alumina coated monolith afforded higher activity than other mono and bimetallic catalysts in CO2 methanation, providing low pressure drop at high space velocity.

Cited by 24 publications

References 45 publications

Effect of the Addition of Alkaline Earth and Lanthanide Metals for the Modification of the Alumina Support in Ni and Ru Catalysts in CO2 Methanation

Effect of the Addition of Alkaline Earth and Lanthanide Metals for the Modification of the Alumina Support in Ni and Ru Catalysts in CO2 Methanation

Bimetallic Ni-Based Catalysts for CO2 Methanation: A Review

Recent progress in materials development for CO2conversion: issues and challenges

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Mono- and bimetallic metal catalysts based on Ni and Ru supported on alumina-coated monoliths for CO₂ methanation

Recent progress in materials development for CO₂conversion: issues and challenges