A controllable top-down etching and in-situ oxidizing strategy: metal-organic frameworks derived α-Co/Ni(OH)2@Co3O4 hollow nanocages for enhanced supercapacitor performance

The rational design and controllable fabrication of functional heterostructure consisting of capacitive framework and insertion is recognized as an efficient strategy to develop electrode materials for enhanced supercapacitor performance. In this work, a controllable NaH2PO2 etching and in-situ O2 oxidation process is developed, and a series of Co3O4 embedded α-Co/Ni(OH)2 hollow nanocages are successfully constructed via metal-organic frameworks...