N‐doped, defective graphene obtained by pyrolysis of chitosan at 900 °C under Ar exhibits catalytic activity for the Sabatier hydrogenation of CO2 to CH4 at temperatures about 500 °C with estimated turnover… Click to show full abstract
N‐doped, defective graphene obtained by pyrolysis of chitosan at 900 °C under Ar exhibits catalytic activity for the Sabatier hydrogenation of CO2 to CH4 at temperatures about 500 °C with estimated turnover frequencies and activation energy values of 73.17 s−1 and 24.3 kcal×mol−1, respectively. It has been found that this enhanced catalytic activity compared to other related doped defective graphenes derives from the presence of pyridinic N atoms that adsorbs CO2 forming carbamate‐type adsorbates.
               
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