One-pot synthesis of hierarchically assembled tungsten oxide (hydrates) nano/microstructures by a crystal-seed-assisted hydrothermal process

Hierarchically assembled tungsten oxide (hydrates) nano/microstructures were synthesized by a crystal-seed-assisted hydrothermal process. Crystal seeds were prepared by refluxing the sol formed by oxidation reaction between W and H2O2. NaCl was used as the capping agent. The assembled nano/microstru...

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Main Authors: Wang, Jinmin, Lee, Pooi See, Ma, Jan
Other Authors: School of Materials Science & Engineering
Format: Article
Language:English
Published: 2012
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Online Access:https://hdl.handle.net/10356/99847
http://hdl.handle.net/10220/8511
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-998472020-06-01T10:21:13Z One-pot synthesis of hierarchically assembled tungsten oxide (hydrates) nano/microstructures by a crystal-seed-assisted hydrothermal process Wang, Jinmin Lee, Pooi See Ma, Jan School of Materials Science & Engineering DRNTU::Engineering::Materials Hierarchically assembled tungsten oxide (hydrates) nano/microstructures were synthesized by a crystal-seed-assisted hydrothermal process. Crystal seeds were prepared by refluxing the sol formed by oxidation reaction between W and H2O2. NaCl was used as the capping agent. The assembled nano/microstructures could be controlled to form multiple morphologies: double-layer nano/microbundles, quasi-nanorod arrays, nanorod-spheres, double-layer nano/microdisks and double-layer six-pod prisms. Their morphologies and phase compositions are dependent on crystal seeds, substrate, and precursor concentration. Hierarchical assembly mechanisms are proposed for the formation of the assembled nano/microstructures. The assembled double-layer nano/microstructures are composed of two different phases of tungsten oxide (hydrates), which represent new cases for two-phase nano/microstructures. 2012-09-13T03:08:36Z 2019-12-06T20:12:18Z 2012-09-13T03:08:36Z 2019-12-06T20:12:18Z 2009 2009 Journal Article Wang, J., Lee, P. S., & Ma, J. (2009). One-pot synthesis of hierarchically assembled tungsten oxide (hydrates) nano/microstructures by a crystal-seed-assisted hydrothermal process. Crystal Growth & Design, 9(5), 2293-2299. https://hdl.handle.net/10356/99847 http://hdl.handle.net/10220/8511 10.1021/cg801097w en Crystal growth & design © 2009 American Chemical Society
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic DRNTU::Engineering::Materials
spellingShingle DRNTU::Engineering::Materials
Wang, Jinmin
Lee, Pooi See
Ma, Jan
One-pot synthesis of hierarchically assembled tungsten oxide (hydrates) nano/microstructures by a crystal-seed-assisted hydrothermal process
description Hierarchically assembled tungsten oxide (hydrates) nano/microstructures were synthesized by a crystal-seed-assisted hydrothermal process. Crystal seeds were prepared by refluxing the sol formed by oxidation reaction between W and H2O2. NaCl was used as the capping agent. The assembled nano/microstructures could be controlled to form multiple morphologies: double-layer nano/microbundles, quasi-nanorod arrays, nanorod-spheres, double-layer nano/microdisks and double-layer six-pod prisms. Their morphologies and phase compositions are dependent on crystal seeds, substrate, and precursor concentration. Hierarchical assembly mechanisms are proposed for the formation of the assembled nano/microstructures. The assembled double-layer nano/microstructures are composed of two different phases of tungsten oxide (hydrates), which represent new cases for two-phase nano/microstructures.
author2 School of Materials Science & Engineering
author_facet School of Materials Science & Engineering
Wang, Jinmin
Lee, Pooi See
Ma, Jan
format Article
author Wang, Jinmin
Lee, Pooi See
Ma, Jan
author_sort Wang, Jinmin
title One-pot synthesis of hierarchically assembled tungsten oxide (hydrates) nano/microstructures by a crystal-seed-assisted hydrothermal process
title_short One-pot synthesis of hierarchically assembled tungsten oxide (hydrates) nano/microstructures by a crystal-seed-assisted hydrothermal process
title_full One-pot synthesis of hierarchically assembled tungsten oxide (hydrates) nano/microstructures by a crystal-seed-assisted hydrothermal process
title_fullStr One-pot synthesis of hierarchically assembled tungsten oxide (hydrates) nano/microstructures by a crystal-seed-assisted hydrothermal process
title_full_unstemmed One-pot synthesis of hierarchically assembled tungsten oxide (hydrates) nano/microstructures by a crystal-seed-assisted hydrothermal process
title_sort one-pot synthesis of hierarchically assembled tungsten oxide (hydrates) nano/microstructures by a crystal-seed-assisted hydrothermal process
publishDate 2012
url https://hdl.handle.net/10356/99847
http://hdl.handle.net/10220/8511
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