【作者】 林智虹；

【导师】 陈震；

【作者基本信息】 福建师范大学 ， 物理化学， 2004， 硕士

【摘要】 本文研究了以阳离子交换膜技术电解生成高铁酸盐和直接电化学法在电解槽中制备电池级高铁酸钡固体材料的两种新方法，并且就电解质种类、浓度、电解液温度、表观阳极电流密度、电解时间等工艺因素对生成高铁酸盐电流效率的影响，进行了较为系统的研究。 以电化学循环伏安法、分光光度法以及红外光谱法研究FeO₄^2-对偶氮及酚类废水的降解脱色行为，实验结果表明，经过FeO₄^2-处理后，循环伏安曲线上原有废水的氧化还原峰消失，代之为Fe³⁺／Fe²⁺的氧化还原峰。紫外光谱分析结果表明，经高铁酸盐处理后废水溶液中的有机成分逐渐减小，红外光谱分析的结果表明，经高铁酸盐絮凝剂处理后，有机染料的主要谱峰消失，代之以CO₃^2-的振动吸收峰，以分光光度法测试出该降解反应的速度常数。 此外，将制得的难溶高铁酸盐固体粉末作为电池正极材料应用于碱性电池中，用化学分析法、扫描电镜（SEM）、粉末X射线衍射（XRD）、红外吸收光谱、热重（TGA）、差热（DTA）等方法对所制高纯固态高铁酸盐的化学组成、晶体形貌、结构特征等化学物理性质进行了表征．将高铁电池与二氧化锰电池进行放电对比实验。结果表明，高铁酸盐具有较传统碱性电池正极材料——MnO₂更为优越的放电性能，其放电起始电压高，放电平台可达到1.1V。更多还原

【Abstract】 The literatures on hand in relation to the methods of preparing ferrate(VI) were summarized in this paper. The techniques for preparing ferrate(VI) solution by SPE cation membrane in the anode chamber and the direct electrochemical preparation of solid Fe(VI) super-iron battery compounds were explored, respectively. The results suggested that the concentration of KOH, the temperature, the current density and the duration time of electrolysis were the important parameters for producing FeO42-.Ferrate(VI) solution was used in treating azo dyes and phenolic waste water. The degradation of compounds was discussed by I-V cyclic voltammogram, IR and UV spectrum. Results of I-V cyclic voltammograms showed that the redox peaks corresponding to organic compounds were not observed in the treated solutions. Instead, a couple of Fe3+/Fe2+ redox peaks were observed. IR results indicated that organic compound was decomposed by FeO42-. The degradation and the decolorization of dyes were confirmed by the measurements of visible spectrum and chemical analysis.The synthesized solid ferrate(VI) salts were used as a cathode materials in the alkaline cell (Zn anode). XRD, SEM and IR were performed to identify the structure of ferrate salt. The experimental results demonstrated that the super-iron battery, appeared several energy and environmental advantage.更多还原