高等学校化学学报

高等学校化学学报

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快速沉淀法制备多孔纳米NiO及其电容性质研究

郑明波1; 曹洁明1; 陈勇平1; 何平1; 陶杰1; 梁彦瑜2; 力虎林1, 2   

  1. 1. 南京航空航天大学材料科学与技术学院, 南京 210016;
    2. 兰州大学化学化工学院, 兰州 730000
  • 收稿日期:2005-07-19 修回日期:1900-01-01 出版日期:2006-06-10 发布日期:2006-06-10
  • 通讯作者: 曹洁明

Preparation of Porous Nano-nickel Oxide by Fast Precipitation and Its Capacitance Characteristics

ZHENG Ming-Bo1; CAO Jie-Ming1*; CHEN Yong-Ping1; HE Ping1;
TAO Jie1; LIANG Yan-Yu2; LI Hu-Lin1,2   

  1. 1. College of Materials Science and Technology, Nanjing University of
    Aeronautics and Astronautics, Nanjing 210016, China;
    2. College of Chemistry and Chemical Engineering, Lanzhou University,
    Lanzhou 730000, China
  • Received:2005-07-19 Revised:1900-01-01 Online:2006-06-10 Published:2006-06-10
  • Contact: CAO Jie-Ming

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被引次数

23

摘要： 本文提出一种简单、低成本和无污染的快速沉淀法, 在没有添加任何有机试剂的条件下, 制备了高比表面积并具有良好孔径分布的Ni(OH)2, 于300 ℃下焙烧得到了多孔纳米NiO, 它在2.0 mol/L KOH电解液中的单电极比容量约为255 F/g.

关键词: 超级电容器, 快速沉淀, 纳米氧化镍, 多孔

Abstract: Ni(OH)2 with a high specific surface area was synthesized by a facile fast precipitation method. Porous nano-NiO was obtained by calcining Ni(OH)2 at 300 ℃. The NiO sample possesses a fine porous distribution at around 3-10 nm. The BET specific surface area and pore volume of this sample are 218.1 m2/g and 0.31 cm3/g, respectively. The electrochemical characteristics of the samples were studied by cyclic voltammetry and constant current charge/discharge. The specific capacitance of the NiO sample is about 255 F/g in the 2.0 mol/L KOH solution. The sample also has a fine electrochemical stability.

Key words: Supercapacitor, Fast precipitation, Nano nickel oxide, Porosing

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