Sulfur-tolerant redox-reversible anode material for direct hydrocarbon solid oxide fuel cells

Adv Mater. 2012 Mar 15;24(11):1439-43. doi: 10.1002/adma.201104852. Epub 2012 Feb 9.

Abstract

A novel composite anode material consisting of K(2) NiF(4) -type structured Pr(0.8) Sr(1.2) (Co,Fe)(0.8) Nb(0.2) O(4+δ) (K-PSCFN) matrix with homogenously dispersed nano-sized Co-Fe alloy (CFA) has been obtained by annealing perovskite Pr(0.4) Sr(0.6) Co(0.2) Fe(0.7) Nb(0.1) O(3-δ) (P-PSCFN) in H(2) at 900 °C. The K-PSCFN-CFA composite anode is redox-reversible and has demonstrated similar catalytic activity to Ni-based cermet anode, excellent sulfur tolerance, remarkable coking resistance and robust redox cyclability.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Electric Power Supplies*
  • Electrodes
  • Hydrocarbons / chemistry*
  • Materials Testing
  • Oxidation-Reduction
  • Oxides / chemistry*
  • Sulfur / chemistry*

Substances

  • Hydrocarbons
  • Oxides
  • Sulfur