Industry News and Headlines

Tailoring Coordination and Pore Structure of MOF‐Derived Co Single‐Atom Catalysts Anchored on Graphene for Rechargeable Zinc–Air Batteries

Researchers introduced a dual‑engineering approach that combines polymer encapsulation with a wavy graphene oxide substrate to produce cobalt single‑atom catalysts derived from MOFs. The polymer layer generates mesopores, while the curved graphene modulates the Co‑Nx coordination, creating defect‑rich Co‑N3 sites. These structural innovations deliver a half‑wave potential of 0.90 V for the oxygen reduction reaction and a 397 mV overpotential for oxygen evolution at 10 mA cm⁻². Integrated into rechargeable zinc‑air batteries, the catalyst achieves 190 mW cm⁻² power density, 832 mAh g⁻¹ specific capacity, and stable cycling over 600 cycles.