eprintid: 9393
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/93/93
datestamp: 2023-11-09 16:21:22
lastmod: 2023-11-09 16:21:22
status_changed: 2023-11-09 16:15:00
type: article
metadata_visibility: show
creators_name: Salam, M.A.
creators_name: Abdullah, B.
creators_name: Islam, M.A.
title: Temperature programmed analysis of hydrogenation and dehydrogenation of magnesium (Mg), nickel (Ni) and aluminum (Al) containing mixed oxides
ispublished: pub
keywords: Activation energy; Aluminum compounds; Chemical analysis; Dehydrogenation; Fourier transform infrared spectroscopy; Hydrides; Hydrogenation; Magnesium; Nanocrystalline materials; Nickel; Precipitation (chemical); X ray diffraction, Ambient conditions; Chemical adsorption; Coprecipitation method; Hydrogenation process; Reversible hydrides; Temperature programmed; Temperature-programmed reduction; X-ray diffractograms, Temperature programmed desorption
note: cited By 4
abstract: Hydrotalcite derived magnesium (Mg), nickel (Ni), and aluminum (Al) containing a mixed oxide of Mg0.5Ni0.25Al0.25O1.13has been synthesized using co-precipitation method. Hydrogenation and dehydrogenation of Mg0.5Ni0.25Al0.25O1.13mixed oxide has been studied using conventional temperature programmed reduction (TPR) and temperature programmed desorption (TPD) method. ICP-MS analysis ensured the composition of metals in a solid solution of mixed oxides. Surface composition was confirmed via EDX analysis. Different oxide, spinel phases were predicted by the X-ray diffraction (XRD) and FT-IR analyses. Temperature-programmed reduction/desorption analyses showed remarkable hydrogenation and dehydrogenation at near ambient conditions. Reduced mixed oxides showed significant hydrogenation at a temperature range of 0�180 °C. X-ray diffractogram and FTIR spectroscopy predicted the hydrogenated phases of MgH2and Mg2NiH4as a stable product of hydrogenation. The analyses correspond the physical and chemical adsorption in whole hydrogenation process of Mg0.5Ni0.25Al0.25O1.13mixed oxides. The activation energy of dehydrogenation is 60 kJ/mol which indicate the formation of reversible hydride phases of MgH2and Mg2NiH4. © 2016
date: 2017
publisher: Institution of Chemical Engineers
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85008692973&doi=10.1016%2fj.cherd.2016.10.039&partnerID=40&md5=ea88af5f1c0559767c33f3a5ddbef273
id_number: 10.1016/j.cherd.2016.10.039
full_text_status: none
publication: Chemical Engineering Research and Design
volume: 118
pagerange: 103-111
refereed: TRUE
issn: 02638762
citation:   Salam, M.A. and Abdullah, B. and Islam, M.A.  (2017) Temperature programmed analysis of hydrogenation and dehydrogenation of magnesium (Mg), nickel (Ni) and aluminum (Al) containing mixed oxides.  Chemical Engineering Research and Design, 118.  pp. 103-111.  ISSN 02638762