Development of a continuous hydrogen generator fueled by ammonia borane for portable fuel cell applications

Yongmin Kim, Yujong Kim, Shinyoung Yeo, Kibeom Kim, Katherine Jung-Eun Koh, Jung Eun Seo, Seock Jae Shin, Dae Ki Choi, Chang Won Yoon, SukWoo Nam

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Thermally-induced dehydrogenation from a mixture of ammonia borane (AB) and a chemical promoter, tetraethyleneglycol dimethylether (T4EGDE) (AB:T4EGDE = 79:21, wt%) has been demonstrated as an efficient method for hydrogen production at 85-145 °C. We further build on these prior results to create a continuous H2 generator fueled by solid AB beads. The as-developed H2 generator releases ca. 2 equiv of hydrogen autothermally during operation by utilizing excess heat produced from AB dehydrogenation without any external heater. A purifying system equipped with acidic filter materials is further utilized to remove gaseous byproducts other than hydrogen. The H 2 generator shows a rapid H2-release rate up to 3.3 l(H2) min-1 with fast load-following capability. The as-developed H2 generator is ultimately integrated with a commercial 200 We polymer electrolyte membrane fuel cell (PEMFC) to test its capability.

Original languageEnglish
Pages (from-to)170-178
Number of pages9
JournalJournal of Power Sources
Volume229
DOIs
Publication statusPublished - 2013 Jan 14
Externally publishedYes

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Keywords

  • Ammonia borane
  • Continuous hydrogen generation
  • Polymer electrolyte membrane fuel cell
  • Solvent-mediated thermolysis

ASJC Scopus subject areas

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

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