화학공학소재연구정보센터
Chemical Physics Letters, Vol.677, 75-79, 2017
Cabbage-like alpha-Ni(OH)(2) with a good long-term cycling stability and high electrochemical performances for supercapacitor applications
Nanostructured Ni(OH)(2) is a promising candidate to be used as an extrinsic pseudocapacitors material. Here, nickel hydroxide (Ni(OH)(2)) was grown on the surface of a Ti plate, galvanostatically via electrode position method. In the electrodeposited films a stable alpha-Ni(OH)(2) phase with particles in cabbage form and average crystallite size of 20 nm is obtained. The alpha-Ni(OH)(2) sample exhibits excellent electrochemical performance at different current densities and good cycling stability. A maximum specific capacitance of 1903 F g(-1) is achieved at a current density of 1 mA cm(-2). The energy and power density values found are 4231 W h kg(-1) and 430W kg(-1). (C) 2017 Elsevier B.V. All rights reserved.