4. Conclusions
In summary, we found that carbon defects in nitrogen-doped carbon could enhance the adsorption capacity of C2H2 and HCl and promote acetylene hydrochlorination. The synthesised C1100 catalyst displayed excellent catalytic activity, close to that of a Au catalyst, under the reaction conditions of GHSV (C2H2) = 36/h and 220 °C. The C1100 catalyst could be easily regenerated by treating with NH3 at 700 °C after deactivation. The relationship between the carbon defects and catalytic activity may be useful for designing better carbon-based catalysts for acetylene hydrochlorination.
