A Nitrogen Doping Method for CoS2 Electrocatalysts with Enhanced Water Oxidation Performance
Citations Over TimeTop 10% of 2017 papers
Abstract
A thorough understanding of the effect of N doping on the oxygen evolution reaction (OER) is greatly significant for constructing next-generation electrocatalysts with an optimal configuration and high efficiency for the fuel cell. Herein, we reported the synthesis of N-doped CoS2 through a facile method using ammonium hydroxide as the N source, the subjection of N-doped CoS2 as efficient electrocatalysts for OER, and the identification of intrinsic activities by exploring the composition and electronic configurations and their correlations with the electrochemical performance. The DFT studies evidenced that N doping could alter the electronic density of the adjacent Co atoms and thus form well-defined electronic configurations for adsorption of intermediates. Specifically, the N-enriched CoS2 afford a small overpotential of 240 mV at the current density of 10 mA cm–2 and long-term durability, endowing these N-doped materials to be ideal (but not limited to) OER electrocatalysts.
Related Papers
- → Thermo-selenizing to rationally tune surface composition and evolve structure of stainless steel to electrocatalytically boost oxygen evolution reaction(2020)59 cited
- → Lowering the Water Oxidation Overpotential by Spin-Crossover in Cobalt Hexacyanoferrate(2022)25 cited
- → Oxygen Evolution Reaction (OER) on Clean and Oxygen Deficient Low-Index SrTiO3 Surfaces: A Theoretical Systematic Study(2019)20 cited
- → High catalytic activity of oxygen-induced (200) surface of Ta2O5 nanolayer towards durable oxygen evolution reaction(2016)41 cited
- → Self-supported Ni2P nanoarrays as efficient electrocatalysts for oxygen evolution reaction and hydrogen evolution reaction(2023)5 cited