摘要
在微波外场强化作用下,以CoCl_2溶液为钴源、草酸铵为沉淀剂采用液相沉淀的方法合成立方形Co_3O_4前驱体,前驱体及热分解产物经SEM、XRD以及TG-DTA分析表征,考察加热方式、反应物浓度、反应温度和反应时间对前驱体形貌的影响.结果表明,在微波外场作用下,反应物起始浓度为0.1 mol/L、反应温度为80℃和反应时间为150 min的液相合成条件下,反应可制得粒径大小分布均匀,D50分布在3μm左右的立方形Co_3O_4前驱体.
Using CoCl2 solution as cobalt source and ammonium oxalate as precipitant, the affects of microwave on morphology of synthesis cubic-C〇 3〇 4and its precursor in the liquid phase were studied. The precursor and thermal decomposition productswere characterized by scanning electron microscope （SEM）, x-ray diffraction （XRD） and thermogravimetric-differential thermal analysis （TG-DTA）. The effects of heating method,initial c oncentration of CoCl2 , reaction temperature and reactiontime on the morphology and the size of the precursor are detected.The results show that the cubic -Co3O4 precursors are produced , their average particle size are about 3 [Jim, under the condition： the initial reactant concentration is 0.1 mol/L, The reaction temperature is 80°C and the reaction time is 150 minutes.
出处
《有色金属科学与工程》
CAS
2017年第3期16-21,共6页
Nonferrous Metals Science and Engineering
基金
国家自然科学基金资助项目(51564022)
江西省高等学校科技落地计划项目(KJLD13041)
关键词
微波外场
CO3O4
前驱体
液相沉淀法
microwave field
Co304
precursor
liquid phase precipitation method
