Improving the stability of direct-methane solid oxide fuel cells using anode barrier layers

Yuanbo Lin, Zhongliang Zhan, Scott A Barnett*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

90 Scopus citations

Abstract

Solid oxide fuel cells (SOFCs) were characterized with methane as the fuel, both with and without an inert porous layer placed between the anode and the fuel stream. For a given set of operating conditions, SOFCs were stable without coking above a critical current density. The barrier layer decreased the critical current density, e.g. from 1.8 to <0.6 A cm-2 at 800 °C. This much-increased stable operating range is discussed in terms of mass transport through the barrier layer.

Original languageEnglish (US)
Pages (from-to)1313-1316
Number of pages4
JournalJournal of Power Sources
Volume158
Issue number2 SPEC. ISS.
DOIs
StatePublished - Aug 25 2006

Keywords

  • Direct methane operation
  • Internal reforming
  • Ni-YSZ anode-supported
  • Solid oxide fuel cell (SOFCs)

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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