ReviewNANOMATERIALS

Carbon-based electrocatalysts for advanced energy conversion and storage

Science Advances  28 Aug 2015:
Vol. 1, no. 7, e1500564
DOI: 10.1126/sciadv.1500564

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Abstract

Oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) play curial roles in electrochemical energy conversion and storage, including fuel cells and metal-air batteries. Having rich multidimensional nanoarchitectures [for example, zero-dimensional (0D) fullerenes, 1D carbon nanotubes, 2D graphene, and 3D graphite] with tunable electronic and surface characteristics, various carbon nanomaterials have been demonstrated to act as efficient metal-free electrocatalysts for ORR and OER in fuel cells and batteries. We present a critical review on the recent advances in carbon-based metal-free catalysts for fuel cells and metal-air batteries, and discuss the perspectives and challenges in this rapidly developing field of practical significance.

Keywords
  • Carbon nanomaterials
  • metal-free electrocatalysts
  • oxygen reduction
  • oxygen evolution
  • fuel cells
  • metal-air batteries

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