Standard Article

Manufacture of electrocatalyst powders by a spray-based production platform

Fuel Cell Technology and Applications

Polymer electrolyte membrane fuel cells and systems (PEMFC)

Electro-catalysts

  1. M. Hampden-Smith1,
  2. P. Atanassova1,
  3. P. Atanassov2,
  4. T. Kodas1

Published Online: 15 DEC 2010

DOI: 10.1002/9780470974001.f303044

Handbook of Fuel Cells

Handbook of Fuel Cells

How to Cite

Hampden-Smith, M., Atanassova, P., Atanassov, P. and Kodas, T. 2010. Manufacture of electrocatalyst powders by a spray-based production platform. Handbook of Fuel Cells. .

Author Information

  1. 1

    Superior MicroPowders, Albuquerque, NM, USA

  2. 2

    University of New Mexico, Albuquerque, NM, USA

Publication History

  1. Published Online: 15 DEC 2010

Abstract

This chapter describes a spray-based method to manufacture electrocatalyst powders for fuel cell and related applications. The attributes of this process are compared to traditional solution precipitation/impregnation methods as well as non-powder-based electrocatalyst production methods. The spray-based process described here results in formation of unique spherical, micrometer-sized aggregates consisting of sub-micrometer electrocatalyst particles where the nanometer sized active phases (Pt, PtRu, metal alloys, metal oxides, composite and anchored molecular compounds) are highly dispersed on the surface of carbon supports. The advantages of this method to manufacture electrocatalyst powders are described in terms of process economics and performance.

Keywords:

  • spray conversion;
  • aerosol routes for powder manufacturing;
  • electrocatalyst;
  • materials manufacturing;
  • proton exchange membrane fuel cell (PEMFC);
  • direct methanol fuel cells (DMFC)