Nanostructured carbon materials have been synthesized by negative templating of NaY zeolites with different carbon precursors and synthesis processes. Highly microporous carbon materials with different content of nitrogen were obtained. It was observed that an intermediate thermal treatment increases significantly the adsorption capacity in the low relative pressure range for all gases. The analysis by XPS and TPD-MS showed that nitrogen is inserted in the carbon structure. These results are in good agreements with the structure previously proposed for such carbon materials (Roussel-2007). The hydrogen adsorption capacities are always strongly related to the micropore volumes. Nevertheless, structural differences of the carbon materials can lead to differences in the amount of pores with a size below 0.5 nm which influences hydrogen adsorption capacities.
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