N-Doping of graphene oxide at low temperature for the oxygen reduction reaction.

@article{Tao2017NDopingOG,
  title={N-Doping of graphene oxide at low temperature for the oxygen reduction reaction.},
  author={Hengcong Tao and Chao Yan and Alex W. Robertson and Yunnan Gao and Jingjing Ding and Yuqin Zhang and Tao Ma and Zhenyu Sun},
  journal={Chemical communications},
  year={2017},
  volume={53 5},
  pages={
          873-876
        }
}
Nitrogen doping of graphene oxide was demonstrated for the first time at a temperature as low as 5 °C in ammonia solution with the aid of ultrasonication. Controlling the ultrasonication time and bath temperature permitted tuning of the N doping level. The resulting N doped graphene oxide showed high activity towards the oxygen reduction reaction. 
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References

SHOWING 1-10 OF 23 REFERENCES

The room temperature electrochemical synthesis of N-doped graphene and its electrocatalytic activity for oxygen reduction.

We report a facile and green electrochemical method using graphene oxide as the precursor to synthesize nitrogen doped graphene at room temperature in ammonia containing aqueous solution. The…

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

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.

Simultaneous nitrogen doping and reduction of graphene oxide.

The N-doped reduced GO shows clearly n-type electron doping behavior with the Dirac point (DP) at negative gate voltages in three terminal devices, and electrical measurements of individual GO sheet devices demonstrate that GO anneal in NH(3) exhibits higher conductivity than those annealed in H(2), suggesting more effective reduction of GO by annealing in NH-3 than in H-2, consistent with XPS data.

Gram-scale synthesis of graphene sheets by a catalytic arc-discharge method.

A catalytic growth mechanism for cathode- part graphene synthesis in the arc-discharge apparatus and an exfoliation mechanism for wall-part graphene synthesis are introduced in the synthesis of high-quality graphene sheets.

Formation Mechanisms of Graphitic-N: Oxygen Reduction and Nitrogen Doping of Graphene Oxides

Deoxygenation and nitrogen-doping mechanisms of graphene oxides with participation of foreign NH3 molecules were investigated by density functional theory calculations. First, reduction on perfect…

High-quality functionalized few-layer graphene: facile fabrication and doping with nitrogen as a metal-free catalyst for the oxygen reduction reaction

Functionalization of graphene is fundamental to facilitating its processing and offers a wide scope for advanced applications. Here we demonstrate a facile, highly efficient and mild covalent…

Nitrogen-doped graphene by ball-milling graphite with melamine for energy conversion and storage

N-doped graphene was prepared by ball milling of graphite with melamine. It was found that ball-milling reduced the size of graphite particles from 30 to 1 μm and facilitated the exfoliation of the…

One-pot solvothermal synthesis of doped graphene with the designed nitrogen type used as a Pt support for fuel cells

Observation of active sites for oxygen reduction reaction on nitrogen-doped multilayer graphene.

Synchrotron-based X-ray photoelectron spectroscopy analyses of three nitrogen-doped multilayer graphene samples reveal that oxygen reduction intermediate OH(ads), which should chemically attach to the active sites, remains on the carbon atoms neighboring pyridinic nitrogen after ORR.

Exploration of the active center structure of nitrogen-doped graphene-based catalysts for oxygen reduction reaction

We present two different ways to fabricate nitrogen-doped graphene (N-graphene) and demonstrate its use as a metal-free catalyst to study the catalytic active center for the oxygen reduction reaction…