Atomically Dispersed Copper in TiO 2 Supported NiO Nanoparticles Drives High CH 4 Productivity, Selectivity, and Stability in CO 2 Methanation Via Reversible Oxygen Vacancies Generation

Key Points

• This research aims to develop an efficient catalyst for CO2 methanation using TiO2-supported NiO with atomically dispersed copper.
• Developed a TiO2-supported NiO catalyst incorporating atomically dispersed copper.
• Investigated the role of oxygen vacancies in enhancing catalyst performance.
• Evaluated methane productivity, selectivity, and stability under CO2 methanation conditions.
• Achieved high CH4 productivity and selectivity with the developed catalyst.
• Demonstrated enhanced stability over extended operational periods.
• Reversible generation of oxygen vacancies contributed to improved catalytic activity.