Kinetics of Hydrogen Absorption and Desorption in Titanium

DOI: https://doi.org/10.9767/bcrec.12.3.810.312-317
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Submitted: 21-11-2016
Published: 28-10-2017
Section: The 2nd International Seminar on Chemistry (ISoC 2016) (Surabaya, 26-27 July 2016)
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Titanium is reactive toward hydrogen forming metal hydride which has a potential application in      energy storage and conversion. Titanium hydride has been widely studied for hydrogen storage, thermal storage, and battery electrodes applications. A special interest is using titanium for hydrogen production in a hydrogen sorption-enhanced steam reforming of natural gas. In the present work, non-isothermal dehydrogenation kinetics of titanium hydride and kinetics of hydrogenation in gaseous flow at isothermal conditions were investigated. The hydrogen desorption was studied using temperature desorption spectroscopy (TDS) while the hydrogen absorption and desorption in gaseous flow were studied by temperature programmed desorption (TPD). The present work showed that the path of dehydrogenation of the TiH2 is d®b®a hydride phase with possible overlapping steps occurred. The fast hydrogen desorption rate observed at the TDS main peak temperature were correlated with the fast transformation of the d-TiH1.41 to b-TiH0.59. In the gaseous flow, hydrogen absorption and desorption were related to the transformation of b-TiH0.59 Û d-TiH1.41 with 2 wt.% hydrogen reversible content. Copyright © 2017 BCREC Group. All rights reserved

Received: 21st November 2016; Revised: 20th March 2017; Accepted: 9th April 2017; Available online: 27th October 2017; Published regularly: December 2017

How to Cite: Suwarno, S., Yartys, V.A. (2017). Kinetics of Hydrogen Absorption and Desorption in Titanium. Bulletin of Chemical Reaction Engineering & Catalysis, 12 (3): 312-317  (doi:10.9767/bcrec.12.3.810.312-317)

 

 

Keywords

hydrogen absorption; kinetics; titanium; dehydrogenation

  1. Suwarno Suwarno 
    Department of Mechanical Engineering, Institut Teknologi Sepuluh Nopember, Surabaya 60111,, Indonesia
  2. V. A. Yartys 
    Department of Materials Science and Engineering, NTNU, NO-7491, Trondheim, Institute for Energy Technology, P.O. Box 40, NO-2027, Kjeller,, Norway
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