Encontrados 2 documentos, a visualizar página 1 de 1
Kinetics of sodium borohydride hydrolysis in aqueous-basic solutions
Retnamma, Rajasree; Rangel, C. M.; Novais, Augusto Q.; Matthews, Michael A.Liquid-phase catalytic hydrolysis of sodium borohydride (NaBH4) for hydrogen production necessitates long-term stability of base-stabilized NaBH4 solutions at higher temperatures. The present paper reports the kinetics of aqueous-basic solutions containing 20 wt% NaBH4 with 1-15 wt% sodium hydroxide (NaOH) at 80 0C. The established kinetic model employs a modified isoconversional method assuming single-step kin...
Modeling of self-gydrolysis of concentrated sodium borohydride solution
Retnamma, Rajasree; Rangel, C. M.; Novais, Augusto Q.; Yu, Lin; Matthews, Michael A.In spite of the US DOE recommendation of no-go for sodium borohydride for on-board vehicular hydrogen storage, a great deal of interest remains particularly with view to portable applications. In this work we report on experimental and modeling studies of the kinetics of self-hydrolysis of concentrated NaBH4 solutions (10 – 20 wt %) for temperatures varying between 25 – 80 0C, based on 11B NMR study. The models...
| Financiadores do RCAAP | |||||||
|
|
|
|
|
|
||