Title

Hydrolytic Cleavage Of Ammonia Borane Complex For Hydrogen Production

Keywords

Ammonia borane; Catalyst; Chemical hydrides; Hydrogen storage; Hydrolysis

Abstract

Ammonia-borane (AB) complex is a chemical hydride that is stable in air and water, and contains very high hydrogen content (19.6 wt%). AB is a promising material as a hydrogen carrier especially for power generation utilizing proton exchange membrane fuel cells (PEMFC). Release of hydrogen in the AB complex can occur by either thermolysis or hydrolysis. Thermolysis of AB generates, in addition to hydrogen, species such as borazine, monomeric aminoborane, and diborane, among others that have adverse effect on the PEMFC operation. In this paper, we present a new process for generating hydrogen via near room temperature hydrolysis of AB complex using small amounts of several platinum group metal catalysts. The kinetics of the AB hydrolysis in the presence of K2Cl6Pt catalyst was studied using in situ 11B-NMR spectroscopy. The GC/MS analysis of the product gas showed that the amount of ammonia detected in the reactor effluent was significantly less when phosphoric acid was used as a sequestering agent. Copyright © (2006) by AFHYPAC.

Publication Date

12-1-2006

Publication Title

16th World Hydrogen Energy Conference 2006, WHEC 2006

Volume

4

Number of Pages

3032-3037

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

Socpus ID

84875625926 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84875625926

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