Chinese Journal of Catalysis ›› 2015, Vol. 36 ›› Issue (4): 458-472.DOI: 10.1016/S1872-2067(14)60175-3

• Special Column on Electrocatalysis for Fuel Cells • Previous Articles     Next Articles

Nano-electrocatalyst materials for low temperature fuel cells: A review

K. Vignaroobana,e, J. Linb, A. Arvayc, S. Kollia, I. Kruusenbergd, K. Tammeveskid, L. Munukutlaa, A. M. Kannana   

  1. a Fuel Cell Laboratory, Department of Engineering and Computing Systems, Arizona State University, Mesa, AZ 85212, USA;
    b Golisano Institute for Sustainability, Rochester Institute of Technology, Rochester, NY 14623, USA;
    c Computer Science Department, University of Auckland, Auckland 1142, New Zealand;
    d Institute of Chemistry, University of Tartu, Ravila 14a, 50411 Tartu, Estonia;
    e Department of Physics, Faculty of Science, University of Jaffna, Jaffna 40000, Sri Lanka
  • Received:2014-04-06 Revised:2014-05-20 Online:2015-03-23 Published:2015-03-23

Abstract:

Low temperature fuel cells are an attractive technology for transportation and residential applications due to their quick start up and shut down capabilities. This review analyzed the current status of nanocatalysts for proton exchange membrane fuel cells and alkaline membrane fuel cells. The preparation process influences the performance of the nanocatalyst. Several synthesis methods are covered for noble and non-noble metal catalysts on various catalyst supports including carbon nanotubes, carbon nanofibers, nanowires, and graphenes. Ex situ and in situ characterization methods like scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy and fuel cell testing of the nanocatalysts on various supports for both proton exchange and alkaline membrane fuel cells are discussed. The accelerated durability estimate of the nanocatalysts, predicted by measuring changes in the electrochemically active surface area using a voltage cycling method, is considered one of the most reliable and valuable method for establishing durability.

Key words: Nanocatalyst, Synthesis method, Catalyst support material, Low temperature fuel cells