A composite of Co nanoparticles highly dispersed on N-rich carbon substrates: an efficient electrocatalyst for
Zhang Zhang1, Liwei Su, Mei Yang
1Tianjin Key Laboratory of Metal and Molecule Based Material Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Institute of New Energy Material Chemistry, Synergetic Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China. zhouzhen@nankai.edu.cn.
Abstract:
In this work, we present a facile sol-gel method to prepare a composite of Co nanoparticles highly dispersed on N-rich carbon substrates (Co-C composite). The assembled Li-O2 batteries with the composite as a cathode catalyst showed lower overpotential and better cyclability, and the improved performance may be attributed to the superior electrocatalytic activity of the Co-C composite.
