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http://dx.doi.org/10.9713/kcer.2015.53.1.11

Hydrolysis Reaction of NaBH4 using Unsupported Co-B, Co-P-B Catalyst  

Oh, Sung-June (Department of Chemical Engineering, Sunchon National University)
Jung, Hyeon-Seong (Department of Chemical Engineering, Sunchon National University)
Jeong, Jae-Jin (Department of Chemical Engineering, Sunchon National University)
Na, Il-Chai (CNL Energy Co.)
Ahn, Ho-Geun (Department of Chemical Engineering, Sunchon National University)
Park, Kwon-Pil (Department of Chemical Engineering, Sunchon National University)
Publication Information
Korean Chemical Engineering Research / v.53, no.1, 2015 , pp. 11-15 More about this Journal
Abstract
Sodium borohydride, $NaBH_4$, shows a number of advantages as hydrogen source for portable proton exchange membrane fuel cells(PEMFCs). Properties of $NaBH_4$ hydrolysis reaction using unsupported Co-B, Co-P-B catalyst were studied. BET surface area of catalyst, yield of hydrogen, effect of $NaBH_4$ concentration and durability of catalyst were measured. The BET surface area of unsupported Co-B catalyst was $75.7m^2/g$ and this value was 18 times higher than that of FeCrAlloy supported Co-B catalyst. The hydrogen yield of $NaBH_4$ hydrolysis reaction by unsupported catalysts using 20~25 wt% $NaBH_4$ solution was 97.6~98.5% in batch reactor. The hydrogen yield decrease to 95.3~97.0% as the concentration of $NaBH_4$ solution increase to 30 wt%. The loss of unsupported catalyst was less than that of FeCrAlloy supported catalyst during $NaBH_4$ hydrolysis reaction and the loss increased with increasing of $NaBH_4$ concentration. In continuous reactor, hydrogen yield of $NaBH_4$ hydrolysis was 90% using 1.2 g of unsupported Co-P-B catalyst with $3{\ell}/min$ hydrogen generation rate.
Keywords
Sodium Borohydride; Unsupported Catalyst; Co-P-B; Hydrogen Yield; Fuel Cell;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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