Kinetics of Sodium Borohydride Hydrolysis Reaction for Hydrogen Generation

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Title:	Kinetics of Sodium Borohydride Hydrolysis Reaction for Hydrogen Generation
Authors:	Hung, Ai-jen;Tsai, Shing-fen;Hsu, Ya-yi;Ju, Jie-ren;Chen, Yih-hang;Yu, Cheng-ching
Contributors:	淡江大學化學工程與材料工程學系
Keywords:	Kinetics;Sodium borohydride;Hydrolysis reaction;Hydrogen generation
Date:	2008-11
Issue Date:	2011-05-20 09:54:41 (UTC+8)
Publisher:	Elsevier
Abstract:	In this work, a ruthenium catalyst was prepared for hydrogen generation from the hydrolysis reaction of an alkaline sodium borohydride solution. The reactions were carried out in a batch reactor at temperatures of 10, 30, 40 and 60 °C for at least 70% conversion or 500 min, whichever came first. The experimental data was fitted to the following three kinetic models: zero-order, first-order, and Langmuir–Hinshelwood. The results indicate that the Langmuir–Hinshelwood model gives a reasonable description of the hydrogen generation rate over the entire temperature range studied as well as the time spans of the experiments. The zero-order model gives good behavior description only at relatively low temperature, i.e. 10 °C. The first-order model works fairly well for a temperature range up to 30 °C.
Relation:	International Journal of Hydrogen Energy 33(21), pp.6205-6215
DOI:	10.1016/j.ijhydene.2008.07.109
Appears in Collections:	[Graduate Institute & Department of Chemical and Materials Engineering] Journal Article

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