Porous N-doped carbon with confined Fe-doped CoP grown on CNTs for superefficient oxygen evolution electrocatalysis

Abstract

Herein, Fe doped CoP nanoparticles (Fe-CoP NPs) encapsulated in porous N-doped carbon (PNC)/carbon nanotubes (CNTs) have been successfully synthesized. The Fe doping and confined structures resulted in enhanced charge transfer...

ZIF-67@POM hybrid-derived unique willow-shaped two-dimensional Mo-CoP nanostructures as efficient electrocatalysts for the oxygen evolution reaction

“…S8 (ESI †) proved that the oxidized Co was CoOOH. 41 These results reveal the transition from Mo-CoP to Mo-CoOOH during the OER.…”

Efficient water oxidation using an Fe-doped nickel telluride–nickel phosphide electrocatalyst by partial phosphating

“…First, Fe-doping can increase the elecconductivity 48,49 and modulate the electronic structure of the catalyst to achieve suitable binding strengths of OER intermediates, thus enhancing the OER performance dramatically. 50,51 Second, the partial phosphating treatment achieves dual phases in the Fe-NiTe-Ni 12 P 5 composite. The signicant Te(II) 3d 3/2 and Te(II) 3d 5/2 peak shis shown in the XPS spectra of Fe-NiTe and Fe-NiTe-Ni 12 P 5 (Fig.…”

Replacing Oxygen Evolution with Hydrazine Borane Oxidation for Energy-Saving Electrochemical Hydrogen Production

“…The ever-growing consumption of fossil fuels and associated serious environmental concerns have prompted the search for clean and renewable energy sources. Hydrogen (H 2 ), as the energy carrier with a high energy density and zero carbon dioxide emission, is regarded as an ideal candidate to replace existing natural fuel. − Thus, it is one of the main tasks to exploit an environmental-friendly and efficient route to produce H 2 , among which water splitting is regarded as a feasible and promising technology. − However, the oxygen evolution reaction (OER) occurring in the anode (OER, 4OH – → O 2 + 2H 2 O + 4e – , 1.23 V vs RHE) involves a four-electron-transfer process with intrinsically sluggish kinetics and high thermodynamic energy barrier formed by O–O bond, resulting in a high voltage of more than 1.23 V for a electrochemical water splitting toward hydrogen production. − Most efforts have been focused on designing advanced and low-cost electrocatalysts to reduce the thermodynamic barriers for hydrogen evolution reaction (HER, 4H 2 O + 4e – → 2H 2 + 4OH – ) and OER, unfortunately, which still requires a very high voltage. − …”