Ce-doped α-FeOOH nanorods as high-performance anode material for energy storage

Proper contents of Ce doping in α-FeOOH nanorods have been conveniently fabricated with high yields through a hydrothermal followed an acid-washing method. The 0.5 wt% Ce-doped α-FeOOH suppressed the dramatic drop of specific discharge capacity within the first 100 cycles and exhibits excellent long-term cycling performances (830 mA h g−1 at high current densities of 2000 mA g−1 after 800 cycles). The 0.5 wt% Ce-doped α-FeOOH//LiFePO4 full cell exhibits the initial discharge capacity of ∼580 mA h g−1 at 1000 mA g−1. The excellent performances of the obtained products reveal potential applications as anode for Lithium-ion batteries. When utilized as anode material for Sodium-ion batteries, it exhibits an initial discharge capacity of 587 mA h g−1 at 100 mA g−1. The 0.5 wt% Ce-doped α-FeOOH nanorod could be applied as a highly attractive candidate for energy storage applications that have environmental friendly, low cost and reliability requests.317