Mesoporous Ni(OH)2 tubes on carbon fiber paper for pseudocapacitor electrode

• Ni(OH)2 suffers from low conductivity and poor long-term durability.
• Physical mixing with activated carbon alleviates these obstacles, but is still limited.
• Mesoporous Ni(OH)2 tubes are directly integrated onto carbon fiber paper.
• The Ni(OH)2 electrode exhibits a superior performance and good long-term cyclability.

A nanostructured Ni(OH)2 electrode was prepared and evaluated in supercapacitor application. Mesoporous Ni(OH)2 tubes were integrated onto carbon fiber paper without the use of a binder. The large surface area and porous structure of Ni(OH)2 combined with the effective diffusion of electrolytes through carbon network resulted in an excellent charge storage capacity and good long-term cyclability.