Interconnected β-Ni(OH)_2 sheets and their morphology-retained transformation into mesostructured Ni

摘要

A facile route was described for the synthesis of interconnected β-Ni(OH)_2 sheets, which was realized by thermal treatment of Ni(NH_3)_6~(2+) solution at 95℃. X-ray diffraction (XRD), transmission electron microscopy (TEM), field emission scanning electron microscopy (FE-SEM), infrared absorption spectrum (IR) and Raman spectrum were used to characterize the product. The complexation of ammonia and temperature played important roles for the formation of the assembled structure. Thus-prepared β-Ni(OH)_2 were morphology-retained transformed into mesostructured Ni by further reduction in H_2 current for 1.5 h.