Title

Hydrolytic Cleavage Of Ammonia-Borane Complex For Hydrogen Production

Keywords

Ammonia-borane; Catalyst; Chemical hydride; Hydrogen storage; Hydrolysis

Abstract

A new process for generating hydrogen via near room temperature hydrolysis of AB complex using small amounts of platinum group metal catalyst has been studied. Using in situ 11B NMR spectroscopy, the overall rate of K2Cl6Pt catalyzed hydrolysis of AB complex was calculated to be third-order. The pre-exponential factor (A) and the activation energy (Ea) of Arrhenius equation, ln k = ln A - Ea/RT, were determined to be: A = 1.6 × 1011 L mol-1 s-1 and Ea = 86.6 kJ mol-1 for temperature range of (25-35 °C). X-ray photoelectron spectroscopy of the residue suggested that the platinum salt was reduced from Pt4+ to Pt0 within the course of the reaction and X-ray diffraction analysis pattern for the residue showed crystallized single-phase boric acid. © 2007.

Publication Date

5-15-2007

Publication Title

Journal of Power Sources

Volume

167

Issue

2

Number of Pages

482-485

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.jpowsour.2007.02.059

Socpus ID

34147155958 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/34147155958

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