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Hydrogen production by alcoholysis of sodium borohydride
Author(s) -
Ramya K.,
Dhathathreyan K.S.,
Sreenivas J.,
Kumar S.,
Narasimhan S.
Publication year - 2013
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.3006
Subject(s) - sodium borohydride , catalysis , chemistry , hydrogen production , hydrogen , methanol , solvent , inorganic chemistry , metal , sodium , substrate (aquarium) , organic chemistry , oceanography , geology
SUMMARY Alcoholysis of sodium borohydride offers advantages due to reduction in number of steps for recycling of sodium borohydride, elimination of freezing problems that are associated with the use of water, fast generation of hydrogen, etc. Methanol was used to liberate hydrogen from sodium borohydride. The influence of the amount of solvent, substrate concentration, temperature and catalyst on the kinetics of alcoholysis reaction in non‐stabilized sodium borohydride has been examined in the present study. The reaction was found to be first order with respect to substrate concentration and zero order with respect to solvent concentration. Effect of soluble metal salts, metal powder and metal boride as catalysts on hydrogen generation rate has also been investigated. It was found that NiCl 2 , Ni 2 B and RuCl 3 were effective catalysts and hydrogen generation proceeds with high efficiency in the presence of these catalysts. Copyright © 2013 John Wiley & Sons, Ltd.