Laser-induced generation of hydrogen from methanol vapor

Abstract

A laser-induced generation of hydrogen (LIGH) from methanol vapor by irradiation of graphene aerogel (GA) as the target with focused beam of continuous wave (CW) laser diode is reported. It was found that among the produced gases H2, CO and CH4 were main components. The generation of gas products was observed when light emission from graphene aerogel occurred upon irradiation with laser beam. The efficiency of hydrogen generation increased with excitation power of applied laser and concentration of methanol in vapor. This process is potentially attractive for the H2 - rich and O2 - free syngas for fuel cells.