Abstract
Well-aligned hierarchical hollow nanoarrays containing ZnO core and Fe(OH)3 nanotube shell have been synthesized via simple one-step hydrothermal method and etching at room temperature. The obtained catalyst has a high specific surface area, a large number of catalytic active sites and good chemical stability. The resulting Fe(OH)3-ZnO/NF nanotubes exhibits promising behavior in alkaline solution. When the current density is 10 mA cm-2, the HER and OER overpotentials (η10) of Fe(OH)3-ZnO/NF are 190 and 388 mV, respectively.
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