Preparation of Fe2O3/Fe foils by anodic oxidation in saturated NaF solution and calcination

被引：1
作者：
Su, C. -W. [1 ,2 ,3 ]
Yang, W. [1 ,2 ,3 ]
Li, J. -M. [1 ,2 ,3 ]
Guo, J. -M. [1 ,2 ,3 ]
Zhang, Y. -J. [1 ,2 ,3 ]
机构：
[1] Yunnan Univ Nationalities, Key Lab Chem Ethn Med Resources, State Ethn Affairs Commiss, D-306 Guang Jing Compound, Kunming 650500, Peoples R China
[2] Yunnan Univ Nationalities, Minist Educ, Kunming 650500, Peoples R China
[3] Yunnan Univ Nationalities, Engn Lab Polylact Acid Based Funct Mat Yunnan, Sch Chem & Biotechnol, Kunming 650500, Peoples R China
来源：
SURFACE ENGINEERING | 2013年 / 29卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Oxidation; Anode; Iron; Morphology; Foil; DIMETHYL-SULFOXIDE; IRON-OXIDE; LITHIUM; FILMS; STORAGE; MICROSPHERES; ANODIZATION; PERFORMANCE; FABRICATION; FEOOH;
D O I：
10.1179/1743294413Y.0000000139
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Fe2O3/Fe foils were prepared by anodic oxidation of Fe foils in saturated NaF solution kept at 70 degrees C and subsequent calcination at 400 degrees C. The morphology of anodised Fe foils was affected remarkably by anodic voltage and time. When pulse anodisation was applied, clusters that consisted of nanograins were formed on the Fe foils. The X-ray diffraction and Fourier transform infrared data suggested that the cluster products transformed to Fe2O3 after calcining at 400 degrees C for 2 h. According to thermogravimetry-differential scanning calorimetry data, the transformation began at similar to 350 degrees C. The Fe2O3/Fe anodes for Li ion batteries were analysed by means of cyclic voltammograms, electrochemical impedance spectroscopies and discharge/charge curves.
引用
收藏
页码：468 / 473
页数：6
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