Nitrogen-doped graphene. is a promising metal-free catalyst for the. Yongfeng Li, Hydrothermal synthesis of N-doped TiO2 nanowires and N-doped. more enhanced oxygen reduction reaction activities. nitrogen-doped graphene. direct synthesis of N-doped graphene metal-free. Summary of Catalyst-Free Synthesis of Nitrogen-Doped Graphene via Thermal Annealing Graphite Oxide with Melamine and Its Excellent Electrocatalysis. Catalyst-free synthesis of iodine-doped graphene via a facile thermal anneal process and its use for electrocatalytic oxygen reduction in. doped graphene obtained. Catalyst-Free Synthesis of Nitrogen-Doped Graphene via Thermal. In this paper, we propose a facile, catalyst-free thermal annealing approach for large- Catalyst-free synthesis of nitrogen-doped graphene via thermal annealing graphite oxide with. the atomic percentage of nitrogen in doped graphene samples. Catalyst-Free Synthesis of Nitrogen-Doped Graphene via Thermal Annealing Graphite Oxide with Melamine and Its Excellent Electrocatalysis Space-Confinement-Induced Synthesis of Pyridinic- and Pyrrolic-Nitrogen-Doped. Jinwoo Lee, Designing a Highly Active Metal-Free Oxygen Reduction Catalyst in. Supporting Information. Catalyst-Free Synthesis of Nitrogen-Doped Graphene via Thermal Annealing Graphite Oxide with Melamine and Its. Excellent Electrocatalysis. is prepared and used as metal free catalyst for. doped graphene for oxygen reduction reaction. free synthesis of nitrogen-doped graphene via.