Abstract
The utilization of fossil fuel has increased atmospheric carbon dioxide (CO2) concentrations drastically over the last few decades. This leads to global warming and climate change, increasing the occurrence of more severe weather around the world. One promising solution to reduce anthropogenic CO2 emissions is methanation. Many researchers and industries are interested in CO2 methanation as a power-to-gas technology and carbon capture and storage (CCS) system. Producing an energy carrier, methane (CH4), via CO2 methanation and water electrolysis is an exceptionally effective method of capturing energy generated by renewables. To enhance methanation efficiency, numerous researches have been conducted to develop catalysts with high activity, CH4 selectivity, and stability against the reaction heat. Therefore, in this mini-review, the characteristics and recent advances of metal-based catalysts in methanation of CO2 is discussed.
Highlights
Solving climate change represents one of mankind’s biggest challenges in the 21st century (Wang and Gong, 2011)
Ni is the most thoroughly researched metal for CO2 methanation due to its relatively high activity, exceptional CH4 selectivity, and lower cost compared to noble metals (Rönsch et al, 2016)
CO2 methanation process is greatly dependent on catalysts performance
Summary
Solving climate change represents one of mankind’s biggest challenges in the 21st century (Wang and Gong, 2011). Methanation catalysts must fulfil two requirements: (1) display high efficiency and activity at low temperatures, and (2) remain stable against the reaction heat (Xu et al, 2016a). Ni is the most thoroughly researched metal for CO2 methanation due to its relatively high activity, exceptional CH4 selectivity, and lower cost compared to noble metals (Rönsch et al, 2016).
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
