Xiangkai Kong

Phase-Transition-Induced Co–Fe2O3 Nanosheets from Upcycling Spent LiFePO4 for Oxygen Evolution

Abstract Spent LiFePO4 (LFP) batteries were upcycled into Co-modified Fe2O3 nanosheets (sFe2O3@Co) through an oxidative reconstruction, selective acid leaching, and Co incorporation. Phase-transition-induced confined growth generated defect-rich ultrathin Fe2O3 nanosheets, while...