Cheng Hui, Chen Jun-Min, Li Qi-Jia, Su Chang-Yuan, Chen An-Na, Zhang Jia-Xuan, Liu Zhao-Qing, Tong Yexiang
School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou Higher Education Mega Center, Outer Ring Road No. 230, Guangzhou, 510006, P. R. China.
Chem Commun (Camb). 2017 Oct 19;53(84):11596-11599. doi: 10.1039/c7cc04099g.
A controllable Co doping strategy is introduced to significantly activate more catalytic sites for Mn-based materials and anchor Co-Mn nanoparticles on the N-doped carbon nanotube (N-CNT) substrates. The as-synthesized CoMnO/N-CNTs exhibit excellent ORR catalytic performance with large limited current density and positive half-wave potential, even outperforming the Pt/C catalysts. The outstanding ORR activity allows the CoMnO/N-CNTs to directly serve as the cathode electrode in a liquid/solid state Zn-air battery, demonstrating large power density and robust stability.
引入了一种可控的钴掺杂策略，以显著激活更多的锰基材料催化位点，并将钴-锰纳米颗粒锚定在氮掺杂碳纳米管（N-CNT）基底上。所合成的CoMnO/N-CNTs表现出优异的氧还原反应（ORR）催化性能，具有大的极限电流密度和正的半波电位，甚至优于Pt/C催化剂。出色的ORR活性使CoMnO/N-CNTs能够直接用作液/固态锌空气电池的阴极电极，展现出大功率密度和强大的稳定性。
