relation: https://khub.utp.edu.my/scholars/9393/
title: Temperature programmed analysis of hydrogenation and dehydrogenation of magnesium (Mg), nickel (Ni) and aluminum (Al) containing mixed oxides
creator: Salam, M.A.
creator: Abdullah, B.
creator: Islam, M.A.
description: 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
publisher: Institution of Chemical Engineers
date: 2017
type: Article
type: PeerReviewed
identifier:   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     
relation: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85008692973&doi=10.1016%2fj.cherd.2016.10.039&partnerID=40&md5=ea88af5f1c0559767c33f3a5ddbef273
relation: 10.1016/j.cherd.2016.10.039
identifier: 10.1016/j.cherd.2016.10.039