Q&A: Uncovering the low-temperature oxygen storage and release mechanism of Mn–CeO₂ nanoparticles

The search for better oxygen carriers has long centered on one key question: how can we design metal oxides that can reversibly store and release lattice oxygen efficiently at lower temperatures? This reversible behavior underpins clean-energy technologies such as fuel conversion, CO2 capture, and chemical looping for hydrogen production, where reaction feasibility and efficiency depend directly on a material's oxygen storage and release capacity (OSC).