Hydrogen storage by carbon materials synthesized from oil seeds and fibrous plant materials

Carbon materials of various morphologies have been synthesized by pyrolysis of various oil-seeds and plantʹs fibrous materials. These materials are characterized by SEM and Raman. Surface areas of these materials are determined by methylene blue method. These carbon porous materials are used for hydrogen storage. Carbon fibers with channel type structure are obtained from baggas and coconut fibers. It is reported that amongst the different plant based precursors studied, carbon from soyabean (1.09 wt%) and baggas (2.05 wt%) gave the better capacity to store hydrogen at 11 kg / m 2 pressure of hydrogen at room temperature. Efforts are made to correlate the hydrogen adsorption capacity with intensities and peak positions of G- and D-band obtained with carbon materials synthesized from plant based precursors. It is suggested that carbon materials whose G-band is around 1575 cm - 1 and the intensity of D-band is less compared to G-band, may be useful material for hydrogen adsorption study.