Effect of acid addition on hydrogen production from potassium borohydride hydrolysis. Issue 13 (3rd July 2017)

• Record Type: Journal Article
• Authors: Balbay, Asım; Şahin, Ömer; Saka, Cafer
• Is Part Of: Energy sources. Volume 39:Issue 13(2017)
• Page Start: 1383
• Page End: 1389
• Publication Date: 2017-07-03
• Subjects: Activation energy -- boric acid -- catalyst -- hydrogen -- kinetic -- mechanism -- potassium borohydride -- production; Natural resources -- Periodicals; Energy consumption -- Periodicals; Energy consumption -- Climatic factors -- Periodicals; Energy conversion -- Periodicals; Energy conversion -- Environment aspects -- Periodicals; Power (Mechanics) -- Periodicals; 333.7905
• DOI: 10.1080/15567036.2017.1331279
• Languages: English
• ISSNs: 1556-7036

Abstract

ABSTRACT: This is the first study to produce hydrogen from the potassium borohydride (KBH4 ) hydrolysis using boric acid (H3 BO3 ). The effect of H3 BO3 addition on the hydrogen production via KBH4 hydrolysis was investigated for different H3 BO3 and KBH4 molar ratios. In addition, the temperature effect on the hydrolysis reaction was investigated at different temperatures. H3 BO3 showed good catalytic activity to produce hydrogen from KBH4 hydrolysis. Activation energy to produce hydrogen from KBH4 hydrolysis was found to be 20.31 kJ/mol. This work also includes kinetic information for the hydrolysis of KBH4 . According to the kinetic studies, the reaction between H3 BO3 and KBH4 had a reaction order of 0.24 against the H3 BO3 concentration, while it had a reaction order of 0.16 against the KBH4 concentration.