N,P,S-codoped C@nano-Mo2C as an efficient catalyst for high selective synthesis of methanol from CO2 hydrogenation

•N,P,S-codoped C@nano-Mo2C was prepared by using protic ionic liquid as a precursor.•N,P,S-codoped C@nano-Mo2C showed high catalytic activity and stability in CO2 hydrogenation.•The 91% selectivity with 19% conversion of CO2 was given in the CO2hydrogenation to methanol.