7-11 July 2014
Africa/Johannesburg timezone
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Microwave synthesis of graphene nickel aluminum layered double hydroxide (LDH)

Presented by Ms. Fatemeh TAGHIZADEH on 8 Jul 2014 from 17:10 to 19:00
Type: Poster Presentation
Session: Poster1
Track: Track F - Applied Physics
Board #: F.407

Abstract

Layered double hydroxide (LDH) with petal-like platelets structure has been produced via microwave irradiation reaction within 1-3 hours by hydrolysis of urea with homogeneous solution of Nickel nitrate and Aluminum nitrate. The feed ratio of the Ni and Al, microwave reaction power and time has been optimized. Pure crystalline Layered double hydroxide (LDH) structure was obtained for feed ratio of 2.0 and reaction power of 100 W with growth time of 1 hour. The structure obtained shows uniform and homogeneous size distribution with high crystallinity. The sample was functionalized with graphene foam and the samples were characterized by x-ray diffraction (XRD), scanning electron microscope (SEM) and Raman spectroscope. The obtained LDH/graphene composite materials were tested as electrode for electrochemical capacitors and it demonstrate good capacitance behavior as potential candidate for energy storage applications.

Award

yes

Level

MSc

Supervisor

N.Manyala Department of Physics SARCHI chair in carbon Technology University of Pretoria Ncholu.manyala@up.ac.za

Paper

no

Place

Room: D Ring ground level


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