Ni(OH)_2/ACMS复合电极材料的合成及其超电容性能研究  

Synthesis of Ni(OH)_2/ACMS Composite Electrode Materials and Ultracapacitance Properties

作　　者：吴春燕[1] WU Chunyan(Department of Natural Resources Engineering, Guangxi Modern Polytechnic College, Hechi 547000, China)

机构地区：[1]广西现代职业技术学院资源工程系,广西河池547000

出　　处：《化工技术与开发》2019年第3期8-10,共3页Technology & Development of Chemical Industry

基　　金：2017年广西高校中青年教师基础能力提升项目(2017KY1255)

摘　　要：以可溶性淀粉为原料,通过水热法和高温碳化得到活性炭微球(ACMS),然后与Ni(Ac)_2·4H_2O、LiOH溶液反应,得到Ni(OH)_2/ACMS复合电极材料。测试结果表明,最终产物具有球状规则外观,Ni(OH)_2均匀分布在其表面,XRD测试表明Ni(OH)_2晶型结构未发生改变。Ni(OH)_2/ACMS复合电极材料具有良好的电化学性能,首次放电比容量为223.0 F·g^(-1),在0.5A·g^(-1)测试电流密度条件下,充放电循环200次后的比容量保持率为90.0%,说明复合材料具有较优异的循环稳定性。Activated carbon microspheres(ACMS) were obtained from soluble starch by hydrothermal method and high temperature carbonization. After reacted with Ni(Ac) 2· 4H 2 O and LiOH solution, Ni(OH) 2 /ACMS composite electrode material was obtained. The test results showed that the final product was a spherical regular appearance , Ni(OH) 2 was evenly distributed on its surface, and the XRD test showed that Ni(OH) 2 had no crystalline structure change. Ni(OH) 2 /ACMS composite electrode material had good electro-chemical properties. The first discharge specific capacity was 223.0F/g. Under the test current density condition of 0.5A/g, the specific capacity retention rate was 90.0% after the discharge cycle 200 times, indicated that the composite had a good cyclic stability.

关 键 词：Ni(OH)2/ACMS 复合电极材料 超电容性能 

分 类 号：TB332[一般工业技术—材料科学与工程]