Effective Mn Doping of Co3O4 to Improve the Catalytic Performance of Co3O4/N-doped Carbon toward Hydrogenation Reduction Reaction of p-Nitrophenol

This work reports that 5% Mn doping of Co3O4 can greatly improve catalytic performance of Co3O4/N-doped carbon (Co3O4/NC) catalysts toward hydrogenation reaction of p-nitrophenol by using NaBH4 as reducing agent. Mn doping can cause formation of cobalt or oxygen vacancies without changing the crystalline structure of Co3O4. The 5%Mn-doped Co3O4/NC has a high activity parameter of 173 s(-1)g(-1) when the molar ratio of NaBH4:p-nitrophenol is 100:1, while the un-doped Co3O4/NC catalyst has a low parameter of 37.0 s(-1)g(-1).

Automated summary

This study demonstrates that 5% Mn doping of Co3O4 can effectively enhance the catalytic performance of Co3O4/NC catalysts in the hydrogenation reaction of p-nitrophenol. Mn doping induces the formation of cobalt or oxygen vacancies in Co3O4 without altering its crystalline structure. The 5%Mn-doped Co3O4/NC catalyst exhibits a high activity parameter of 173 s(-1)g(-1) at a molar ratio of NaBH4:p-nitrophenol of 100:1, while the un-doped Co3O4/NC catalyst has a low parameter of 37.0 s(-1)g(-1).