Covalent Hybrid of Spinel Manganese–Cobalt Oxide and Graphene as Advanced Oxygen Reduction Electrocatalysts

• Published in: Journal of the American Chemical Society Vol. 134; no. 7; pp. 3517 - 3523
• Main Authors: Liang, Yongye, Wang, Hailiang, Zhou, Jigang, Li, Yanguang, Wang, Jian, Regier, Tom, Dai, Hongjie
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society 22.02.2012
• Subjects: active sites; cations; chemical bonding; cobalt; cobalt oxide; durability; electrochemistry; graphene; graphene oxide; manganese; nanoparticles; nitrogen; oxygen; X-radiation; X-ray absorption spectroscopy

Through direct nanoparticle nucleation and growth on nitrogen doped, reduced graphene oxide sheets and cation substitution of spinel Co3O4 nanoparticles, a manganese–cobalt spinel MnCo2O4/graphene hybrid was developed as a highly efficient electrocatalyst for oxygen reduction reaction (ORR) in alkal...