High-rate asymmetrical supercapacitors based on cobalt-doped birnessite nanotubes and Mn-FeOOH nanotubes
Man Shen, Shi Jin Zhu, Ziyang Guo, Xin Fu, Wangchen Huo, Chuan Jing, Xiaoying Liu, Yuxin Zhang
Abstract
Co-Doped MnO2 nanotubes (Co-MnO2-5) were prepared as the positive electrode of supercapacitors via a simple one-step hydrothermal method. Co doping and one-dimensional tunneling of nanotubes result in low internal resistance and good ionic contact, enhancing the conductivity and electrochemical performance of the electrodes.
Topics & Concepts
BirnessiteSupercapacitorCobaltMaterials scienceHydrothermal circulationDopingChemical engineeringElectrochemistryNanotechnologyManganeseChemistryMetallurgyPhysical chemistryElectrodeOptoelectronicsManganese oxideEngineeringSupercapacitor Materials and FabricationAdvancements in Battery MaterialsConducting polymers and applications