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Influence of NaOH on the synthesis of Bi2Te3 via a low-temperature aqueous chemical method

Influence of NaOH on the synthesis of Bi2Te3 via a low-temperature aqueous chemical method NaOH was used to adjust the pH of the solution in the synthesis of nanostructured Bi2Te3 alloys via hydrothermal and solvothermal process. However, it is still elusive whether NaOH is necessary and how it affects on the size and morphology of Bi2Te3 which contributes a lot to the thermoelectric figure of merit ZT. The present work suggested that bulk quantity of nanostructured Bi2Te3 with considerable uniform morphology of nanoflake could be yielded without NaOH when the reaction time ranged from 6 h to 48 h. These nanoflakes have about 10–30 nm thickness and 50–300 nm width. When adding NaOH, the morphology of Bi2Te3 becomes various. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Materials Science Springer Journals

Influence of NaOH on the synthesis of Bi2Te3 via a low-temperature aqueous chemical method

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References (19)

Publisher
Springer Journals
Copyright
Copyright © 2009 by Springer Science+Business Media, LLC
Subject
Materials Science; Materials Science, general; Characterization and Evaluation of Materials; Polymer Sciences; Continuum Mechanics and Mechanics of Materials; Crystallography and Scattering Methods; Classical Mechanics
ISSN
0022-2461
eISSN
1573-4803
DOI
10.1007/s10853-009-3476-x
Publisher site
See Article on Publisher Site

Abstract

NaOH was used to adjust the pH of the solution in the synthesis of nanostructured Bi2Te3 alloys via hydrothermal and solvothermal process. However, it is still elusive whether NaOH is necessary and how it affects on the size and morphology of Bi2Te3 which contributes a lot to the thermoelectric figure of merit ZT. The present work suggested that bulk quantity of nanostructured Bi2Te3 with considerable uniform morphology of nanoflake could be yielded without NaOH when the reaction time ranged from 6 h to 48 h. These nanoflakes have about 10–30 nm thickness and 50–300 nm width. When adding NaOH, the morphology of Bi2Te3 becomes various.

Journal

Journal of Materials Science – Springer Journals

Published: Apr 24, 2009

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