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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 83Formation of ZnO Nanorods via Seeded Growth...

Formation of ZnO Nanorods via Seeded Growth Hydrothermal Reaction

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Abstract:

In this study, ZnO nanorods was formed on a seeded substrates prepared by thermal oxidation of Zn foil followed by hydrothermal reaction. ZnO seed was prepared via thermal oxidation process at 300°C for 10 minutes to form uniform circular nanosize grains that were suitable as a seeded template for the growth of ZnO nanorods via hydrothermal reaction. Several hydrothermal reaction parameters were studied; hydrothermal reaction temperature, ratio of zinc nitrate to hexamethylamine and pH. In hydrothermal reaction, the formation of ZnO nanorods occurs due to thermal degradation of hexamethylamine (HMT) which released hydroxyl ions that react with Zn ions in the precursor solution. Well aligned, ZnO nanorods with length of ~700 nm, base diameter of ~200 nm and top diameter of less than 30 nm needle-like structure were formed on seeded Zn substrate with concentration ratio of zinc nitrate to hexamethylamine 0.1M:0.1M, pH 6-7 at hydrothermal reaction temperature of 80°C

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Periodical:

Applied Mechanics and Materials (Volume 83)

Pages:

116-122

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.83.116

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Online since:

July 2011

Authors:

Ridhuan Nur Syafinaz, Yeo Pet Fong, Zainovia Lockman, Abdul Razak Khairunisak

Keywords:

Hydrothermal, Nanorod, Seed, Zinc Oxide (ZnO)

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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