Catalyst-Free Synthesis of Nitrogen-Doped Graphene via Thermal Annealing Graphite Oxide with Melamine and Its Excellent Electrocatalysis

We propose a facile, catalyst-free thermal annealing approach for large-scale synthesis of nitrogen-doped graphene using low-cost industrial material melamine as the nitrogen source

Zhen-Huan Sheng

2011

Scholarcy highlights

  • The electronic and chemical properties of graphene can be modulated by chemical doping foreign atoms and functional moieties
  • The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online
  • We propose a facile, catalyst-free thermal annealing approach for large-scale synthesis of nitrogen-doped graphene using low-cost industrial material melamine as the nitrogen source
  • This approach can completely avoid the contamination of transition metal catalysts, and the intrinsic catalytic performance of pure NGs can be investigated
  • Electrochemical characterizations clearly demonstrate excellent electrocatalytic activity of NG toward the oxygen reduction reaction in alkaline electrolytes, which is independent of nitrogen doping level
  • Detailed X-ray photoelectron spectrum analysis of the resultant products shows that the atomic percentage of nitrogen in doped graphene samples can be adjusted up to 10.1%
  • The present catalyst-free approach opens up the possibility for the synthesis of NG in gram-scale for electronic devices and cathodic materials for fuel cells and biosensors
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