Development of a continuous hydrogen generator fueled by ammonia borane for portable fuel cell applications
- Development of a continuous hydrogen generator fueled by ammonia borane for portable fuel cell applications
- 김용민; 김유종; 여신영; 김기범; 고정은; 서정은; 신석재; 최대기; 윤창원; 남석우
- Ammonia borane; Continuous hydrogen generation; Solvent-mediated thermolysis; Polymer electrolyte membrane fuel cell
- Issue Date
- Journal of power sources
- VOL 229, 170-178
- 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.
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