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

Title
Development of a continuous hydrogen generator fueled by ammonia borane for portable fuel cell applications
Authors
김용민김유종여신영김기범고정은서정은신석재최대기윤창원남석우
Keywords
Ammonia borane; Continuous hydrogen generation; Solvent-mediated thermolysis; Polymer electrolyte membrane fuel cell
Issue Date
2013-05
Publisher
Journal of power sources
Citation
VOL 229, 170-178
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 H2 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.
URI
http://pubs.kist.re.kr/handle/201004/44377
ISSN
03787753
Appears in Collections:
KIST Publication > Article
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