摘要
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.
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 m^2/g and 0.31 cm^3/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.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2006年第6期1138-1140,共3页
Chemical Journal of Chinese Universities
基金
江苏省自然科学基金(批准号:BK2002414)
南京航空航天大学科技创新基金资助
关键词
超级电容器
快速沉淀
纳米氧化镍
多孔
Supercapacitor
Fast precipitation
Nano nickel oxide
Porosing
