Boosting reversible oxygen electrocatalysis with enhanced interfacial pyridinic-N-Co bonding in cobalt oxide/mesoporous N-doped graphene hybrids.

Nanoscale

Institute of New-Energy Materials, Key Laboratory of Advanced Ceramics and Machining Technology of Ministry of Education, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China.

Published: December 2018

AI Article Synopsis

  • A hybrid electrocatalyst called CoO/r-NLG was created using pyrolysis of cobalt iron precursors and N-doped graphene.
  • * It features a high density of pyridinic-N-Co bonds which enhances its performance.
  • * This electrocatalyst demonstrated excellent reversible oxygen reduction and evolution reactions, with a low efficiency loss of 0.635 V in a potassium hydroxide solution.

Article Abstract

A hybrid electrocatalyst CoO/r-NLG with a high density of pyridinic-N-Co bonds was synthesized via pyrolysis treatments of a mixture of cobalt iron precursors and laser-induced mesoporous N-doped graphene, which achieved superb reversible ORR/OER activities, offering a low efficiency loss (ΔE) of 0.635 V in a 1.0 M KOH electrolyte.

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Source
http://dx.doi.org/10.1039/c8nr07945eDOI Listing

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