ZnO quantum dot-decorated carbon nanofibers derived from electrospun ZIF-8/PVA nanofibers for high-performance energy storage electrodes.

Hierarchical fibrous structures composed of ZnO quantum dots, amorphous carbons, and carbon nanofibers are synthesized via a single carbonization process of electrospun ZIF-8/PVA nanofibers. This newly designed electrode material for supercapacitors exhibits outstanding electrochemical performances with high capacitance, reliable rate capability, and long cycle life.