包信和院士领衔！复旦大学汪国雄/大连化物所宋月锋，最新Nature子刊丨高价铱单原子助力高温CO₂电解！

TL;DR - A Nature Communications study reports high-valent iridium single atoms stabilized on a perovskite cathode for efficient high-temperature CO₂-to-CO electrolysis. Strong Ir–O–Fe interactions deliver both catalytic activity and durability under harsh operating conditions.

• Ir remained atomically dispersed after 1000 °C treatment and more than 600 hours of electrolysis.
• Electronic coupling increased oxygen vacancies, improving CO₂ adsorption, dissociation, and interfacial charge transfer.
• The cell reached 3.02 A cm⁻² at 800 °C and 1.5 V—80.8% above untreated LSF—with nearly 100% Faradaic efficiency.
• Spectroscopy, microscopy, operando SERS, isotope experiments, and DFT linked the performance gains to lower vacancy-formation and CO₂-reduction barriers.