Highly N-doped microporous carbon nanospheres with high energy storage and conversion efficiency.

ABSTRACT: Porous carbon spheres (CSs) have distinct advantages in energy storage and conversion applications. We report the preparation of highly monodisperse N-doped microporous CSs through the carbonization of polystyrene-based polymer spheres and subsequent activation. The N-doped microporous CSs have a remarkably high N-doping content, over 10%, and high BET surface area of 884.9 m² g^-1. We characterize the synergistic effects of the micropores and N doping on the energy storage performance of a supercapacitor electrode consisting of the CSs and on the performance in an electrocatalytic reaction of a CS counter electrode in a photovoltaic cell. The N-doped microporous CSs exhibit a maximum capacitance of 373 F g^-1 at a current density of 0.2 Ag^-1, a hi

SUBMITTER: Kim C 

PROVIDER: S-EPMC5663965 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature