废旧锌锰电池制备Cu掺杂Mn-Zn铁氧体  

Preparation of Cu doped Mn-Zn ferrite by spent Zn-Mn batteries

作　　者：席国喜[1] 李伟伟[1] 乔祎[2] 

机构地区：[1]河南师范大学化学与环境科学学院河南省环境污染控制重点实验室,河南新乡453007 [2]北京科技大学新金属材料国家重点实验室,北京100083

出　　处：《电子元件与材料》2007年第7期26-28,共3页Electronic Components And Materials

基　　金：河南省科技攻关计划资助项目(0424270148)

摘　　要：以硝酸溶解废旧碱性锌锰电池所得的溶液为原料,以酒石酸为凝胶剂,采用sol-gel法制备出一系列Cu掺杂Mn-Zn铁氧体(Mn0.6–x/2Zn0.4–x/2CuxFe2O4,x=0.1,0.2,0.3和0.4)。经XRD、VSM测试,结果表明:Cu掺杂不仅没有改变Mn-Zn铁氧体的相结构,而且有利于尖晶石结构的形成;Cu掺杂后Mn-Zn铁氧体的Ms、Mr和Hc的变化趋势,都是先增大后减小,最适宜的掺杂量x为0.1。此时,Ms为2.66×105A/m,Mr为5.73×104A/m,Hc为1.6/π×104A/m。Using spent alkaline Zn-Mn batteries as resource materials via dissolving with nitric acid, a series of Cu doped Mn-Zn ferrites （Mn0.6-x/2Zn0.4-x/2CuxFe2O4, x = 0.1, 0.2, 0.3and 0.4） were synthesized by sol-gel method in which tartaric acid was used as gelata. The results show that the phase structure of Mn-Zn ferrites has no change with Cu doping, and spinel phase formation of Cu doped Mn-Zn ferrites is better than no Cu doping. The saturation magnetization, surplus magnetization and coercive force have the same change with the variety of Cu concentration. The best Cu concentration x is 0.1, in this point, saturation magnetization is 2.66 × 10^5 A/m, surplus magnetization is 5.73 × 10^4 A/m and coercive force is 1.6/n × 10^4 A/m.

关 键 词：无机非金属材料 废旧碱性锌锰电池 CU掺杂 Mn—Zn铁氧体 SOL-GEL法 

分 类 号：TQ174.756[化学工程—陶瓷工业]