Sadiq, M., Arif, M., Ullah, A., Naveed, A., Afridi, S., Humayun, M., Naeem Khan, M. and Asif, M. (2021) “Synthesis of MnO2 Carbon nanotubes catalyst with enhanced Oxygen Reduction Reaction for Polymer Electrolyte Membrane Fuel Cell”, Journal of the Pakistan Institute of Chemical Engineers, 49(2), pp. 19–27. doi: 10.54693/piche.04923.