Engineering of hollow mesoporous Fe-graphitic carbon Nitride@CNTs for superior electrocatalytic oxygen reduction reaction - Anuj Kumar; Ram K. Gupta; Mohd Ubaidullah; Abdullah M. Al-Enizi; Bidhan Pandit; Senthilkumar Nangan; V. Jagadeesha Angadi; Ghulam Yasin (Fuel, 2024)