Effect of copper on nickel/zeolite based bimetallic catalysts for enhanced thermocatalytic hydrogenation of carbon dioxide

Document Type

Review

Publication Date

2-1-2026

Abstract

Carbon dioxide (CO₂), a major greenhouse gas released from anthropogenic activities like industrial emissions and fossil fuel combustion, has elevated atmospheric levels, exacerbating global warming. Its chemical inertness has exhibited conversion challenges, though efficient catalysis aids for the transformation into valuable products. Conventional CO₂ capture and storage (CCS) suffers from high costs, energy intensity, leakage risks, and inefficiencies, while carbon capture and utilization (CCU) has shown a viable alternative by yielding useful chemicals and fuels with economic benefits. Among thermochemical, electrochemical, photocatalytic, and biological pathways with limitations in efficiency, stability, or scalability this review focuses on thermocatalytic CO₂ hydrogenation to methane. It highlights Ni-Cu bimetallic catalysts confined in zeolitic frameworks, where Ni-Cu synergy and zeolites’ tunable acidity/pore structure has helped in CO₂ activation, CH₄ selectivity, and stability. Key synthesis methods and properties are examined to reveal impacts of bimetallic composition and zeolite topology on performance, concluding with challenges and future directions for scalable CO₂ methanation

Publication Title

Inorganic Chemistry Communications

ISSN

13877003

DOI

10.1016/j.inoche.2025.116014

Volume

184

Link to Full Text

Share

COinS