DMF中电化学制备Ce-Fe-Co合金及磁性研究  

Electrochemical Preparation and Magnetic Properties Studies of Ce-Fe-Co Alloy in DMF

作　　者：王建朝[1] 王书海[1] 叶广[1] 翟博[1] 刘影[1] 胡博[1] 

机构地区：[1]青海师范大学化学系,青海西宁810008

出　　处：《中山大学学报（自然科学版）》2012年第5期21-25,35,共6页Acta Scientiarum Naturalium Universitatis Sunyatseni

基　　金：国家自然科学基金资助项目(50161016)

摘　　要：该文主要研究了DMF中电化学制备Ce-Fe-Co合金薄膜材料,利用电化学工作站对Ce(Ⅲ)、Fe(Ⅱ)和Co(Ⅱ)在铜电极表面的电化学行为进行了研究,并利用EDS、SEM、XRD、VSM等仪器对镀层的化学组成、结构和性质进行了测试。结果表明:①Ce不能单独沉积到电极表面,但Co和Fe的沉积可以诱导Ce沉积;②沉积电位对合金的化学组成影响最大,其次是镀液组成和沉积时间;③Ce的加入提高了合金的磁性能;④高温退火后合金向晶态转变,晶体成规则的球型结晶,磁性能降低。Various Ce-Fe-Co alloys were prepared in DMF. Electroreduction behaviors of Ce （ Ⅲ ）, Fe （Ⅱ ） and Co （ Ⅱ） on Cu electrodes were studied using electrochemical workstation. Their chemical composition, structure and property were analyzed by EDX, SEM, XRD and VSM analyses. The results demonstrated that （ 1 ） Ce （Ⅲ ） was not reduced to deposit on the surface of electrode, but deposited by deposition of Co and Fe; （2） Deposition potential strongly affected chemical composition of alloys, but the effect of bath composition and deposition time was weak; （3） Magnetic property of alloys was in- creased by adding Ce; （4） The spherical crystal formed with the increase of annealing temperature, re- sulting in decrease of magnetic property.

关 键 词：DMF 磁性 退火温度 Ce-Fe-Co 

分 类 号：O627[理学—有机化学]