液相共沉淀法制备纳米α-MnO_2的研究

Study on Preparation of Nano α-MnO_2 by Liquid Precipitation

以硫酸锰、高锰酸钾为原料,采用液相共沉积法制备纳米α-MnO_2颗粒,利用SEM、XRD、比表面积仪等手段表征其晶态及粒径,以考察反应温度、时间等条件对样品微观形貌的影响规律。结果表明:反应温度和时间分别为60℃、3 h时,制备出颗粒状纳米α-MnO_2,且无杂质峰,BET比表面积为186.58 m^2/g。

In this paper,nano α-MnO2 was prepared by liquid precipitation using manganese sulfate and potassium permanganate as raw materials. The sample was characterized by SEM,XRD and specific surface area instrument. The effects of reaction conditions such as reaction temperature and time on the microscopic morphology of samples were studied. The results showed that： pure nano α-MnO2 of particles was obtained when 60 ℃ and 3 h,the specific surface area was 186. 58 m^2/g.