A Novel Hierarchical Porous 3D Structured Vanadium Nitride/Carbon Membranes for High-performance Supercapacitor Negative Electrodes.

ABSTRACT: Transition-metal nitrides exhibit wide potential windows and good electrochemical performance, but usually experience imbalanced practical applications in the energy storage field due to aggregation, poor circulation stability, and complicated syntheses. In this study, a novel and simple multi-phase polymeric strategy was developed to fabricate hybrid vanadium nitride/carbon (VN/C) membranes for supercapacitor negative electrodes, in which VN nanoparticles were uniformly distributed in the hierarchical porous carbon 3D networks. The supercapacitor negative electrode based on VN/C membranes exhibited a high specific capacitance of 392.0 F g^-1 at 0.5 A g^-1 and an excellent rate capability with capacitance retention of 50.5% at 30 A g^-1. For the asymmetric dev

SUBMITTER: Wu Y 

PROVIDER: S-EPMC6199110 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature