Rational Design of Metal‐Organic Framework Derived Hollow NiCo 2 O 4 Arrays for Flexible Supercapacitor and Electrocatalysis
National University of Singapore · Tongji University
Abstract
Metal‐organic frameworks (MOFs) are promising porous precursors for the construction of various functional materials for high‐performance electrochemical energy storage and conversion. Herein, a facile two‐step solution method to rational design of a novel electrode of hollow NiCo 2 O 4 nanowall arrays on flexible carbon cloth substrate is reported. Uniform 2D cobalt‐based wall‐like MOFs are first synthesized via a solution reaction, and then the 2D solid nanowall arrays are converted into hollow and porous NiCo 2 O 4 nanostructures through an ion‐exchange and etching process with an additional annealing treatment. The as‐obtained NiCo 2 O 4 nanostructure arrays can provide rich reaction sites and short ion…
Citation impact
- FWCI
- 44.37
- Percentile
- 100%
- References
- 67
Authors
6Topics & keywords
- Materials science
- Supercapacitor
- Electrochemistry
- Electrode
- Nanotechnology
- Electrocatalyst
- Metal-organic framework
- Nanostructure