Encapsulated Co-Ni alloy boosts high-temperature CO2 electroreduction - Nature

"Electrocatalytic CO2 reduction is crucial for achieving a net-zero-emission society, with low-temperature methods facing significant efficiency and longevity challenges."

"High-temperature CO2 electroreduction in solid oxide electrolysis cells offers an alternative, achieving over 50% energy efficiency, potentially addressing existing efficiency problems."

Electrocatalytic CO2 reduction is critical for a net-zero-emission society, yet existing low-temperature technologies struggle with low energy efficiency and short catalyst lifetimes. Current systems have efficiency below 35% and lifetimes of under 100 hours at necessary current densities. High-temperature CO2 electroreduction (600-1,000°C) in solid oxide electrolysis cells (SOEC) is a promising alternative, achieving over 50% energy efficiency with complete selectivity for CO. However, current catalysts face limitations due to agglomeration and instability, necessitating advancements in catalyst design and performance optimization strategies.

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