Semiempirical Hydrogen Generation Model Using Concentrated Sodium Borohydride Solution

摘要

The characteristics of hydrogen generation from concentrated sodium borohydride (NaBH_4) solutions were studied in this paper because of its potential application in hydrogen storage. The hydrolysis was conducted over a carbon-supported ruthenium catalyst, and the hydrogen generated was measured using a computer-monitored water replacement method. The effects of the hydrolysis temperature, NaOH concentration, NaBH_4 concentration, and the byproduct, sodium metaborate, on hydrogen generation behavior have been investigated. An empirical model was proposed to represent the hydrogen-generation rate.