Morphology-controlled fabrication of hierarchical mesoporous NiCo2O4 micro-/nanostructures and their intriguing application in electrochemical capacitors

作者：Yu Le; Wu Haobin; Wu Tian^*; Yuan Changzhou

来源：RSC Advances, 2013, 3(45): 23709-23714.

DOI：10.1039/c3ra44546a

Hierarchical NiCo2O4 micro-/nanostructures constructed with mesoporous nanowire or nanosheet building blocks have been controllably fabricated via a facile two-step strategy involving a solvothermal route and a post-annealing treatment. The tunable morphologies can be easily achieved through simply altering the properties of the reaction solvents. The well-defined hierarchical NiCo2O4 micro-/nanostructures apparently possess intriguing structural advantages, such as fast electron and ion transport, high electroactive surface area, and excellent mechanical stability. As a result, the two hierarchical NiCo2O4 micro-/nanostructures demonstrate large specific capacitance coupled with excellent cycling stability when evaluated as striking electrode materials for high-performance electrochemical capacitors.

• 出版日期2013
• 单位湖北第二师范学院; 安徽工业大学