Vu Van Thang, Phuong Nam Le Pham, Thuy Trang T. Vuong, Kiem Do Van, Tu Le Manh, Phi Long Nguyen. "Sustainable synthesis of Ni-doped Co3O4/graphene from recycled cobalt for efficient oxygen evolution reaction." Scientific Reports (2026). https://doi.org/10.1038/s41598-026-52116-3