Boosting the Oxygen Evolution Reaction Activity of NiFe₂O₄ Nanosheets by Phosphate Ion Functionalization.

ABSTRACT: Here, we demonstrate an effective strategy to constitutionally increase the conductivity and electrocatalytic property of NiFe₂O₄ by phosphate ion functionalization. The phosphate-ion-modified NiFe₂O₄ (P-NiFe₂O₄) nanosheets are readily grown on a carbon cloth by a simple hydrothermal method and followed by a phosphating process. The introduction of phosphate ions on the NiFe₂O₄ surface is highly beneficial for increasing the charge transport rate and electrocatalytic active sites. As a result, the as-prepared P-NiFe₂O₄ nanosheets show outstanding electrocatalytic activity toward oxygen evolution reaction (OER), with a low overpotential (231 mV at 10 mA/cm²) and Tafel slo

SUBMITTER: Chen Q 

PROVIDER: S-EPMC6648634 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature