000			01729nab a2200193 4500
005			20260520000817.0
008			260224s2009 xxu
245	0	0	_aHydrogen generation using a borohydride-based semi-continuous milli-scale reactor _bEffects of physicochemical parameters on hydrogen yield
260			_a _b _cene. 2009
270			_a15/05/2009 ; 17/04/2009
300			_a5 p. ; 408-413
520			_aTranscripción del resúmen publicado por el autor: It is well-known that hydrogen for portable applications can be generated by hydrolysis of sodium borohydride stabilized in an alkali medium over suitable catalysts. This paper describes hydrogen generation by hydrolysis of solid sodium borohydride (NaBH4) powder in a milli-scale semi-continuous reactor. Acidified (hydrochloric acid) water is used as an accelerator for hydrogen generation. The effects of liquid-solid interfacial contact area, NaBH4 loading, liquid flow rate, and temperature on the hydrogen yield in the milli-scale reactor have been studied. The results indicate that up to 80% of the theoretical hydrogen can be produced from 2 mg (0.053 mM) of NaBH4 using a 6 N HCl solution at a flow rate of 1 µL/min. The hydrolysis of NaBH4 produces byproducts, such as NaBO2 and NaCl. Acidified water increases the porosity of the interfacial reaction zone consisting of byproducts. This improves liquid delivery to unreacted NaBH4 and results in greater hydrogen generation over longer durations.
773	0		_tEnergy & fuels _g23
942			_cARTICULO
100	1		_aJaved, Umer _940947
100	1		_aSubramanian, Vaidyanathan _940948
999			_c169599 _d169599
856			_uhttp://pubs.acs.org/doi/full/10.1021/ef8005417