阳极共沉积法制备Fe和Co掺杂PbO_2电极及其性能表征  

Preparation and Performances of PbO_2 Electrodes Doped with Fe or Co by the Electro-codeposition Method

作　　者：李晓萍[1,2] 陆海彦[2,3] 任秀斌[2] 李伟[2] 丹媛媛[2] 林海波[2,3] 

机构地区：[1]白城师范学院化学系 [2]吉林大学化学学院,长春130012 [3]苏州耐思达化学科技有限公司,苏州215123

出　　处：《应用化学》2011年第5期571-575,共5页Chinese Journal of Applied Chemistry

基　　金：国家自然科学基金(20873051);吉林省重点项目(20080306);江苏省自然科学基金(BK2009596)资助项目

摘　　要：采用阳极共沉积的方法制备了Fe和Co掺杂Ti/PbO2电极。用XRD、SEM及循环伏安法研究了Fe和Co掺杂对Ti/PbO2电极的影响。结果表明,掺杂Fe和Co的Ti/PbO2电极与纯Ti/PbO2电极相比,虽然形貌变化很小,但在结构和性质上发生了改变。Co掺杂可提高电极的析氧活性,PbO2电极涂层在电化学过程中存在溶解和重新沉积或者晶型转化的现象。这种Pb2+的溶解与再沉积可能会影响电极材料的寿命。Ti/PbO2 electrodes doped with Fe or Co were prepared by an electro-codeposition method.The effects of the Fe or Co on Ti/PbO2 electrodes were investigated by the X-ray diffraction（XRD）,scanning electron microscope（SEM） and cyclic voltammetry（CV）.Compared with the pure Ti/PbO2 electrode,the morphology of Ti/PbO2 electrode doped with either Fe or Co remained nearly unchanged while their structures and performances were varied.The activities of oxygen evolution reaction（OER） were improved in Co doped electrode.The dissolution,re-deposition or crystalline transforming of PbO2 took place during the electro-reaction process.In addition,the lifetime of the electrodes might be influenced by such dissolution and re-deposition.

关 键 词：阳极 催化剂 氧化物 电化学共沉积 二氧化铅电极 

分 类 号：O646.5[理学—物理化学]