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Open Access Publications from the University of California

Selective nitrogen doping of graphene oxide by laser irradiation for enhanced hydrogen evolution activity.

  • Author(s): Zheng, Wenjing;
  • Zhang, Yan;
  • Niu, Kaiyang;
  • Liu, Tao;
  • Bustillo, Karen;
  • Ercius, Peter;
  • Nordlund, Dennis;
  • Wu, Junqiao;
  • Zheng, Haimei;
  • Du, Xiwen
  • et al.

Selective nitrogen-doping of graphene oxide with a high pyridinic N ratio (51%; L-GO) was achieved by laser irradiation of graphene oxide with ammonia. The resulting L-GO exhibited enhanced electrocatalytic properties; specifically, the overpotential of the hydrogen evolution reaction (HER) was improved by over 400 mV at 10 mA cm-2 compared to the pristine graphene oxide.

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