Synthesis of pyramidal and prismatic hexagonal MoO3 nanorods using thiourea

The hexagonal phase of MoO3 is attractive for electrochemical applications owing to its arrangement of atoms, which offers a large number of intercalation sites. The number of intercalation sites also depends on the orientation of the specific crystallographic plane. In this report we present a faci...

Full description

Saved in:
Bibliographic Details
Main Authors: Kumar, Vipin, Wang, Xu, Lee, Pooi See
Other Authors: School of Materials Science & Engineering
Format: Article
Language:English
Published: 2013
Subjects:
Online Access:https://hdl.handle.net/10356/99671
http://hdl.handle.net/10220/17661
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Nanyang Technological University
Language: English
id sg-ntu-dr.10356-99671
record_format dspace
spelling sg-ntu-dr.10356-996712020-06-01T10:26:38Z Synthesis of pyramidal and prismatic hexagonal MoO3 nanorods using thiourea Kumar, Vipin Wang, Xu Lee, Pooi See School of Materials Science & Engineering DRNTU::Engineering::Materials The hexagonal phase of MoO3 is attractive for electrochemical applications owing to its arrangement of atoms, which offers a large number of intercalation sites. The number of intercalation sites also depends on the orientation of the specific crystallographic plane. In this report we present a facile and low cost method to synthesize the metastable hexagonal phase of MoO3 containing NH4+ and H2O in the form of nanorods (pyramidal and prismatic) using a thiourea synthesis. The unique hexagonal phase of MoO3 was realized using a single step solvothermal process. In this work, thiourea provides the ammonium ions which alter the growth rate and stabilize the hexagonal framework. The morphology of the resulting samples changes from pyramidal to prismatic when the thiourea concentration is increased. The phase compositions and the morphologies of the as prepared samples were investigated by X-ray diffractometry, thermogravimetric analysis, X-ray dispersive spectroscopy and Field emission scanning electron microscopy, respectively. On the basis of our findings, we propose a growth model with plausible growth mechanisms to account for their formation process. 2013-11-15T03:21:39Z 2019-12-06T20:10:03Z 2013-11-15T03:21:39Z 2019-12-06T20:10:03Z 2013 2013 Journal Article Kumar, V., Wang, X., & Lee, P. S. (2013). Synthesis of pyramidal and prismatic hexagonal MoO3 nanorods using thiourea. CrystEngComm, 15(38), 7663-7669. 1466-8033 https://hdl.handle.net/10356/99671 http://hdl.handle.net/10220/17661 10.1039/c3ce41341a en CrystEngComm
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic DRNTU::Engineering::Materials
spellingShingle DRNTU::Engineering::Materials
Kumar, Vipin
Wang, Xu
Lee, Pooi See
Synthesis of pyramidal and prismatic hexagonal MoO3 nanorods using thiourea
description The hexagonal phase of MoO3 is attractive for electrochemical applications owing to its arrangement of atoms, which offers a large number of intercalation sites. The number of intercalation sites also depends on the orientation of the specific crystallographic plane. In this report we present a facile and low cost method to synthesize the metastable hexagonal phase of MoO3 containing NH4+ and H2O in the form of nanorods (pyramidal and prismatic) using a thiourea synthesis. The unique hexagonal phase of MoO3 was realized using a single step solvothermal process. In this work, thiourea provides the ammonium ions which alter the growth rate and stabilize the hexagonal framework. The morphology of the resulting samples changes from pyramidal to prismatic when the thiourea concentration is increased. The phase compositions and the morphologies of the as prepared samples were investigated by X-ray diffractometry, thermogravimetric analysis, X-ray dispersive spectroscopy and Field emission scanning electron microscopy, respectively. On the basis of our findings, we propose a growth model with plausible growth mechanisms to account for their formation process.
author2 School of Materials Science & Engineering
author_facet School of Materials Science & Engineering
Kumar, Vipin
Wang, Xu
Lee, Pooi See
format Article
author Kumar, Vipin
Wang, Xu
Lee, Pooi See
author_sort Kumar, Vipin
title Synthesis of pyramidal and prismatic hexagonal MoO3 nanorods using thiourea
title_short Synthesis of pyramidal and prismatic hexagonal MoO3 nanorods using thiourea
title_full Synthesis of pyramidal and prismatic hexagonal MoO3 nanorods using thiourea
title_fullStr Synthesis of pyramidal and prismatic hexagonal MoO3 nanorods using thiourea
title_full_unstemmed Synthesis of pyramidal and prismatic hexagonal MoO3 nanorods using thiourea
title_sort synthesis of pyramidal and prismatic hexagonal moo3 nanorods using thiourea
publishDate 2013
url https://hdl.handle.net/10356/99671
http://hdl.handle.net/10220/17661
_version_ 1681058610641108992