Agar chemical hydrogel electrode binder for fuel-electrolyte-fed fuel cells

Liang An, T. S. Zhao, L. Zeng

Research output: Journal article publicationJournal articleAcademic researchpeer-review

48 Citations (Scopus)


This work reports on the synthesis and application of a novel, cost-effective and environmentally friendly agar chemical hydrogel (ACH) electrode binder in fuel-electrolyte-fed fuel cells. The ACH is synthesized by a chemical cross-linking reaction between agar and glutaraldehyde with acetic acid as a catalyst. The fuel cell performance characterization demonstrates that the use of the ACH-based electrode in a fuel-electrolyte-fed fuel cell enables an improvement in cell performance as opposed to the use of conventional Nafion ionomer-based electrodes. The improved performance can be mainly attributed to the enhanced mass/charge transport rendered by the hydrophilic nature and water retention characteristic of agar. This work suggests that the cost-effective ACH binder can replace conventional Nafion ionomers for fuel-electrolyte-fed fuel cells.
Original languageEnglish
Pages (from-to)67-71
Number of pages5
JournalApplied Energy
Publication statusPublished - 1 Jan 2013
Externally publishedYes


  • Agar chemical hydrogel
  • Alkaline-acid direct ethanol fuel cell
  • Electrode binder
  • Fuel cell
  • Fuel-electrolyte-fed fuel cell

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Energy(all)


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