Reaction Characteristics of Ni-Based Catalyst Supported by Al2O3 in a Fluidized Bed for CO2 Methanation

Article Chemistry, Physical

Low Temperature CO Oxidation Over Highly Active Gold Nanoparticles Supported on Reduced Graphene Oxide@Mg-BTC Nanocomposite

Hatem M. Altass et al.

Summary: In this study, gold nanoparticles were successfully supported on reduced graphene oxide and Mg-BTC, demonstrating excellent stability and catalytic activity in adsorption and oxidation of CO gas.

CATALYSIS LETTERS (2023)

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Article Chemistry, Physical

Research Progress and Reaction Mechanism of CO2 Methanation over Ni-Based Catalysts at Low Temperature: A Review

Li Li et al.

Summary: This article focuses on the progress of CO2 methanation and the key parameters of catalysts based on nickel, as well as the reaction mechanism. Designing and preparing catalysts with high activity and stability at low temperature, as well as studying the reaction mechanism, are important areas for further research.

CATALYSTS (2022)

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Review Energy & Fuels

Current Developments in Catalytic Methanation of Carbon Dioxide-A Review

Chung Hong Tan et al.

Summary: This article discusses the characteristics and recent advances of metal-based catalysts in the methanation of CO2, which is of great interest to researchers and industries as a method to reduce carbon dioxide emissions.

FRONTIERS IN ENERGY RESEARCH (2022)

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Review Chemistry, Physical

Ni-Based Catalyst for Carbon Dioxide Methanation: A Review on Performance and Progress

Nur Diyan Mohd Ridzuan et al.

Summary: This review critically discusses recent developments in the application of nickel-based catalysts for CO2 methanation, focusing on the effects of supporting material, promoters, and catalyst composition. Additionally, the thermodynamics, kinetics, and mechanism of CO2 methanation are briefly addressed.

CATALYSTS (2022)

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Article Thermodynamics

CO2 methanation in a bench-scale bubbling fluidized bed reactor using Ni-based catalyst and its exothermic heat transfer analysis

Hyungseok Nam et al.

Summary: In this study, CO2 methanation was conducted using a 0.2 kW CH4 bench-scale fluidized bed reactor with approximately 13 kg nickel-based catalyst to investigate the impact of temperature, gas velocity, and H-2/CO2 ratio on CO2 conversion, CH4 purity, and CH4 selectivity. Response surface methodology was employed to design experimental conditions to evaluate the effect of operating variables, and optimal conditions were determined for maximum CO2 conversion and CH4 purity.

ENERGY (2021)

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Article Multidisciplinary Sciences

Pyroelectric nanoplates for reduction of CO2 to methanol driven by temperature-variation

Lingbo Xiao et al.

Summary: The use of pyroelectric nanostructured materials to reduce CO2 to methanol at temperatures between 15°C and 70°C has been shown to have a high methanol yield of up to 55.0 μmol/g. This cost-effective and environmentally friendly method presents a new avenue for utilizing natural temperature variations for future methanol economy.

NATURE COMMUNICATIONS (2021)

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Article Chemistry, Applied

Active, selective and stable NiO-CeO2 nanoparticles for CO2 methanation

Andrea Cardenas-Arenas et al.

Summary: The study of CO2 hydrogenation to CH4 revealed that the catalyst consisting of size-controlled NiO-CeO2 mixed oxide nanoparticles exhibits higher activity and selectivity, attributed to its high specific surface area and the presence of highly-reducible Ni-O-Ce species on the nanoparticle surface.

FUEL PROCESSING TECHNOLOGY (2021)

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Article Engineering, Chemical

Flow behavior and heat transfer in bubbling fluidized-bed with immersed heat exchange tubes for CO2 methanation

Son Ich Ngo et al.

Summary: This study investigated the hydrodynamic and heat transfer characteristics of a BFB reactor with immersed heat exchange tubes for CO2 methanation using a 2D gas-solid Eulerian computational fluid dynamics model. The results showed that the heat of reaction was effectively removed in the reactor and isothermal conditions were maintained. The CO2 conversion rate reached 92% under specific operating conditions.

POWDER TECHNOLOGY (2021)

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Article Engineering, Chemical

Enhanced Catalytic Activity for CO Oxidation by Highly Active Pd Nanoparticles Supported on Reduced Graphene Oxide/Copper Metal Organic Framework

Hatem M. Altass et al.

Summary: Pd nanoparticles were successfully dispersed on rGO@Cu-BTC nanocomposite surface, showing excellent catalytic activity for CO oxidation. The presence of rGO played a vital role in the dispersion of Pd NPs on the catalyst surface, leading to higher catalytic activity compared to catalyst without rGO.

JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS (2021)

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Article Chemistry, Multidisciplinary

Palladium supported on mixed-metal-organic framework (Co-Mn-MOF-74) for efficient catalytic oxidation of CO

Reda S. Salama et al.

Summary: Successful synthesis of monometallic and bimetallic metal-organic frameworks with different Co/Mn ratios under solvothermal conditions, followed by deposition of Pd nanoparticles. Characterization results show that Pd nanoparticles were finely dispersed on the MOFs surfaces. The catalytic activity of monometallic MOFs was enhanced by introducing another metal in the same framework, while loading with Pd nanoparticles showed an excellent improvement in CO conversion. Samples containing Pd nanoparticles exhibited higher catalytic activities with increasing Pd content.

RSC ADVANCES (2021)

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Article Chemistry, Physical