高铁酸钾之电解法制备及性质表征  

Electrosy nthesis and Characterization of Potassium Ferrate ( Ⅵ )

作　　者：何伟春[1] 左宏森[1] 杨长春[2] 丁哲[1] 

机构地区：[1]郑州工业高等专科学校材料系,河南郑州450007 [2]郑州大学化学系,河南郑州450052

出　　处：《河南教育学院学报（自然科学版）》2003年第2期47-49,共3页Journal of Henan Institute of Education(Natural Science Edition)

摘　　要：采用快速电合成技术可有效获得ω((K_2FeO_4)为93％～98.1％的晶体,通过现代仪器分析(AAS.XRD,SEM,IR,TGA和DTA)表征了样品。发现样品具有以下性质:XRD八条强线d(pm)值为298_x,259_3,432_3,308_3,521_3,427_3,294_2,226_2;晶体较粗(50～100μm),呈长而薄的正交晶形;在4000～400cm^(-1)之间IR特征峰为三重强峰(815,791,774cm^(-1))和单重弱峰(1571cm^(-1));热稳定性高于536K。The K2Fe04 solid with the mass percent from 93% to 98.1 % can be obtained efficiently by adopting the quick electrosynthesis technique. The sample was characterized by modem instruments analytical methods ( AAS, SEM , XRD, IR,TGA and DTA).We found that as follow. The interplanar distance (d/pm) of the eight strong XRD lines are of 298X ,2593,4323,3083,5213,4273,2942,2262.The crystals of K2Fe04 are big to 50 - 100 μm with their form being or-thogonalt both long and thin. The absorption characteristic peaks of IR are of a strong triplet (815 ,791,774cm-1' )and a weak singlet (1 571 cm-1 ) between 4 000 ~ 400 cm-1 band. The thermal decomposition point of the sample is above 536K.

关 键 词：高铁酸钾 电解法 制备工艺 性质表征 快速电合成法 热稳定性 水处理剂 正极材料 

分 类 号：TQ131.13[化学工程—无机化工]