固相反应法合成掺铝的α型氢氧化镍及其电化学性能  

Solid State Synthesis and Electrochemical Performances of α-Ni(OH)_2 including 20% Al

作　　者：许娟[1] 周益明[1] 唐亚文[1] 王青[1] 陆天虹[1] 唐琛明[2] 高效岳[2] 沈涛[2] 忻新泉[3] 

机构地区：[1]南京师范大学化学与环境科学学院,南京210097 [2]江苏海四达集团有限公司,启东226200 [3]南京大学配位化学研究所

出　　处：《无机化学学报》2003年第5期535-538,共4页Chinese Journal of Inorganic Chemistry

基　　金：江苏省教委自然科学基金资助项目(No.00KJB150005;01KJB150007);南京师范大学物理化学重点学科基金资助项目(No.121090B501)。

摘　　要：Ni(OH)2 including 20%Al was synthesized by solid state reaction. The result of XRD indicated that the sample thus prepared was α Ni(OH)2, and its size and crystalline form were much poorer than those of the sample prepared by solution state reaction. TG and DTA curves showed that α Ni(OH)2 began to decompose at higher temperature than β Ni(OH)2. The electrochemical behaviorsof the sample were studied by cyclic voltammetry and constant current charge discharge experiment. It was found that the sample by solid state reaction hadmore excellent electrode reversibility, higher discharge potential and higher discharge capacity.Ni(OH)2 including 20%Al was synthesized by solid state reaction. The result of XRD indicated that the sample thus prepared was α Ni(OH)2, and its size and crystalline form were much poorer than those of the sample prepared by solution state reaction. TG and DTA curves showed that α Ni(OH)2 began to decompose at higher temperature than β Ni(OH)2. The electrochemical behaviorsof the sample were studied by cyclic voltammetry and constant current charge discharge experiment. It was found that the sample by solid state reaction hadmore excellent electrode reversibility, higher discharge potential and higher discharge capacity.

关 键 词：α型氢氧化镍 电化学性能 固相反应法 合成 掺杂 铝 碱性二次电池 材料 

分 类 号：TM912[电气工程—电力电子与电力传动] O646.5[理学—物理化学]