Electrospun Carbon Nanofibers with Embedded Co-Ceria Nanoparticles for Efficient Hydrogen Evolution and Overall Water Splitting.

ABSTRACT: In this study, simple electrospinning combined with pyrolysis were used to fabricate transition-metal-based-nanoparticle-incorporated carbon nanofiber (CNF) electrocatalysts for a high-efficiency hydrogen evolution reaction (HER) and overall water splitting. Co-CeO₂ nanoparticle-incorporated carbon nanofibers (Co-CeO₂@CNF) exhibit an outstanding electrocatalytic HER performance with an overpotential and Tafel slope of 92 mV and 54 mV/dec, respectively. For the counterpart, electrolysis, we incorporate the widely used Ni₂Fe catalyst with a high oxygen evolution reaction (OER) activity into the carbon nanofiber (Ni₂Fe@CNF). To evaluate their electrochemical properties for the overall water splitting, Co-CeO₂@CNF and Ni₂Fe@CNF

SUBMITTER: Woo S 

PROVIDER: S-EPMC7079610 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature