Preparation and characterization of fibrous NiO particles by thermal decomposition of nickelous complex precursors

来源期刊：中国有色金属学报(英文版)2004年第4期

论文作者：张传福 湛菁 邬建辉 黎昌俊

文章页码：713 - 717

Key words：pyrolysis; nickelous complex precursors; NiO fibres; growth mechanism

Abstract: The influences of pyrolytic conditions, including temperature, time, the flow rate of air, and the heating rate, on the morphology, average size and specific surface area of the NiO particles were investigated, and the composition and morphologies of the products were characterized by using of XRD, SEM and BET. It is found that fibrous NiO particles were produced under the optimal conditions. A suitable range of pH for preparing dispersive precursors was chosen according to analysis of zeta potential. Based on the observations of NiO precursors growth and SEM morphology of the precursor, the oriented attachment was proposed for the well-aligned growth of the NiO precursor fibres. The final product NiO inherits the morphology of the precursor.