熔渣中铁离子的循环伏安分析  

Analysis of cyclic voltammetry of iron ions in molten slag

作　　者：潘元[1] 高运明[1] 杨创煌[1] 姜亚龙 陈则[1] 

机构地区：[1]武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室,湖北武汉430081

出　　处：《武汉科技大学学报》2015年第2期85-89,共5页Journal of Wuhan University of Science and Technology

基　　金：国家自然科学基金资助项目(51174148);武汉科技大学大学生科技创新基金研究项目(13ZRA002)

摘　　要：研究了电解池配置及测试参数对含FeO熔渣循环伏安曲线稳定性的影响,初步考查了熔渣中Fe2+还原行为。结果表明:采用ZrO2(MgO)管作隔离膜,集成构建含有Pt,O2(air)/ZrO2参比电极的新型管状电解池进行循环伏安测试,能清楚地观察到熔渣体系中的氧化还原峰和电化学特性,但参比电极位置、电阻补偿率、工作电极在渣中的插入深度等对循环伏安曲线有一定影响;熔渣中Fe2+的电解还原过程由扩散控制。The effects of the configuration of electrolytic cell and testing parameters on stabilization of cyclic voltammograms of molten slag containing FeO were studied.The reduction behavior of Fe2＋ions in the molten slag was preliminarily investigated.The results show that the cyclic voltammograms can be measured by means of a novel tubular electrolytic cell constructed integrally with magnesia partially stabilized zirconia tube as the isolation membrane and Pt,O2（air）｜ZrO2as the reference electrode.The redox peak and other electrochemical characteristics of the molten slag can be distinctly observed with the novel electrolytic cell.However,such factors as the reference electrode placement,the resistance ratio of compensation and immersion depth of working electrode in the molten slag have an impact on the cyclic voltammograms.The reduction process of the Fe2＋ions in the molten slag may be controlled by diffusion.

关 键 词：电解池 熔渣 铁氧化物 铁离子 循环伏安图 ZrO2(MgO) 

分 类 号：TQ151.5[化学工程—电化学工业]