Ni(OH)_2/USY分子筛复合材料的制备及其超级电容性能

Preparation of Ni(OH)_2/USY sieve sorbent composite and its super-capacitive performance

以USY分子筛为模板,用液相共沉淀方法合成出Ni(OH)2/USY复合材料.用XRD、TEM对Ni(OH)2/USY复合材料的微观结构进行表征分析.结果表明,纳米级高分散、疏松填充的Ni(OH)2材料具有良好的电解质OH-离子电化学可及性和快的扩散速率,循环伏安和恒流充放电测试均表明该材料具有良好的超级电容特性,该材料的单电极比电容高达1 670 F/g.

Taking USY sieve sorbent as a template, Ni（OH）2/USY composite was synthesized by means of liquid-precipitation, and its microstructure was analyzed and characterized with X-ray diffraction and transmission electron microscopy. The result showed that highly dispersed and loosely packed Ni（OH）2 whiskers on a nanometer scale possessed such characteristics as a good electrochemical accessibility of electrolyte ions and fast diffusion rate. It was shown by the test for its characteristics of cyclic voltammetry and chronopotentionmetry technology that this material had excellent super-capacitive performance with a maximum specific capacitance of 1 670 F/g.