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

Abstract

Abstract 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.