Molecular doping of graphene as metal-free electrocatalyst for oxygen reduction reaction.

Supporting information Sulfur-doped Graphene as Potential Alternative Metal-free Electrocatalyst and Pt-catalyst Supporting Material for Oxygen Reduction Reaction

Facile Synthesis of N, S-Doped Graphene from Sulfur Trioxide Pyridine Precursor for the Oxygen Reduction Reaction

In the work presented here, nitrogen and sulfur co doped on porous graphene was synthesized using pyrolysis at 900°C for 2h and the hydrothermal technique at 180°C for 24h as metal-free electrocatalysts for oxygen reduction reaction (ORR) under alkaline conditions. All the materials have been characterized by Scanning Electron Microscopy (SEM) and X-ray photo-electron spectroscopy (XPS). Moreov...

Nitrogen-doped graphene as efficient metal-free electrocatalyst for oxygen reduction in fuel cells.

Nitrogen-doped graphene (N-graphene) was synthesized by chemical vapor deposition of methane in the presence of ammonia. The resultant N-graphene was demonstrated to act as a metal-free electrode with a much better electrocatalytic activity, long-term operation stability, and tolerance to crossover effect than platinum for oxygen reduction via a four-electron pathway in alkaline fuel cells. To ...

Pyrrolic-nitrogen doped graphene: a metal-free electrocatalyst with high efficiency and selectivity for the reduction of carbon dioxide to formic acid: a computational study.

Searching for metal-free catalysts for the carbon dioxide reduction reaction (CO2RR) has been a key challenge in the electrosynthesis of fuels for CO2 utilization. In this work, we investigated the potential of N-doped graphene as the electrocatalyst of CO2RR by means of comprehensive density functional theory (DFT) computations. The computations revealed that N-doping can modify the electronic...

Synthesis of Supported Pt Alloy three Dimensional Rhombus Shapes Nanoparticles for Oxygen Reduction Reaction

In this study PtFeCo ternary alloys nanoparticles of three dimentional (3D) rhombus shapes dispersed on graphene nanosheets (PtFeCo/Gr) were successfully prepared and studied as electrocatalysts for oxygen reduction reaction (ORR) in polymer-electrolyte fuel cells. A combination of analytical techniques including powder X-ray diffraction, X-ray photoelectron spectra, inductively coupled plasma-...