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HYDROGEN STORAGE CHARACTERIZATION OF HYDROTALCITEDERIVED REDUCED MIXED OXIDES

ZHARANI, ERNIE NURAZERA (2010) HYDROGEN STORAGE CHARACTERIZATION OF HYDROTALCITEDERIVED REDUCED MIXED OXIDES. Universiti Teknologi PETRONAS. (Unpublished)

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Abstract

Hydrotalcites compound have received much attention and view of their potential applications as adsorbents, as anion exchangers, in nucleophilic halide exchanger and most importantly as catalyst support. The synthesis and characterization of hydrotalcite-like compound (HTLcs) for hydrogen storage purposes is described. The HTLcs is synthesized by using Magnesium Nitrate Hexahydrate and Aluminium Nitrate Nanohydrate as the starting material by coprecipitation with sodium carbonate. The characterization analysis on the HTLcs synthesized is carried out by using Powder X-ray Diffraction (XRD), and Fourier Transform Infrared Spectroscopy. This study also focuses on the effect of thermal treatment on HTLcs during calcinations process which formed a mixed oxides compound. After that, the adsorption/desorption behavior study of H2 on HTLcs is conducted by using Temperature programmed reduction (TPR )/Temperature Programmed Desorption (TPD).According to the FTTRanalysis before and after adsorption, it was found that there is a significant amount of H2 adsorbed after the mixed oxides reduced under hydrogen flow for a period of time. This outcome also supported by the H2 consumption curve obtained in TPR analysis where it has shown that H2 adsorption occur on metal formed after an amount of reducible mixed oxides completely reduced. Furthermore, during TPD analysis, it was found that small amount of H2 desorbed with low rate ofadsorption.

Item Type: Final Year Project
Academic Subject : Academic Department - Chemical Engineering - Material Development
Subject: T Technology > TP Chemical technology
Divisions: Engineering > Chemical
Depositing User: Users 2053 not found.
Date Deposited: 08 Jan 2014 08:47
Last Modified: 08 Jan 2014 08:47
URI: http://utpedia.utp.edu.my/id/eprint/10804

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