A METHOD TO MAKE CNT/PT CATALYST WHEREIN THE SIZE OF THE PLATINUM NANO PARTICLES IS CONTROLLED USING MICROWAVE IRRADIATION

摘要

The invention relates to a method to prepare a stable suspension of CNT/Pt catalyst in the form of a catalyst ink for making electrodes for proton exchange membrane fuel cell (PEMFCs), comprising a method to deposit CNT/Pt (Carbon Nanotubes on which platinum nano particles are deposited) catalyst ink made using microwave treatment of the CNTs (carbon nanotubes) in harsh oxidizing conditions followed by a second microwave treatment of CNTs for platinum deposition. In particular, the method uses an ultrasonic spray technique for deposition of CNT/Pt to fabricate large area electrodes for commercial PEMFC (Proton exchange membrane fuel cell) application.