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Comparative study on MoO3 and HxMoO3 nanobelts : structure and electric transport

Hu, Xiao Kai, Qian, Yi Tai, Song, Z. T., Huang, Jia Rui, Cao, R. and Xiao, John Q. 2008, Comparative study on MoO3 and HxMoO3 nanobelts : structure and electric transport, Chemistry of materials, vol. 20, no. 4, pp. 1527-1533, doi: 10.1021/cm702942y.

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Title Comparative study on MoO3 and HxMoO3 nanobelts : structure and electric transport
Formatted title Comparative study on MoO3 and HxMoO3 nanobelts : structure and electric transport
Author(s) Hu, Xiao Kai
Qian, Yi Tai
Song, Z. T.
Huang, Jia Rui
Cao, R.
Xiao, John Q.
Journal name Chemistry of materials
Volume number 20
Issue number 4
Start page 1527
End page 1533
Total pages 7
Publisher American Chemical Society
Place of publication Washington, D. C.
Publication date 2008
ISSN 0897-4756
1520-5002
Summary In this study, the suspension of MoO3 nanobelts was first prepared in a hydrothermal way from Mo powders and H2O2 solution, which could be transformed into the suspension of HxMoO3 nanobelts under an acidic condition using N2H4 ·H2O as the reducing agent. Three paper-form samples made from MoO3 and HxMoO3 nanobelts (low or high hydrogen content) were then fabricated via a vacuum filtration method, followed by their structural comparative analysis such as FESEM, XRD, Raman spectra, and XPS, etc. The measurement of electric resistances at room temperature shows that the conductance of HxMoO3 nanobelts is greatly improved because of hydrogen doping. The temperature-dependent resistances of HxMoO3 nanobelts agree with the exponential correlation, supporting that the conducting carriers are the quasi-free electrons released from Mo5+. In addition, the formation process of HxMoO3 nanobelts from MoO3 nanobelts is also discussed.
Language eng
DOI 10.1021/cm702942y
Field of Research 039999 Chemical Sciences not elsewhere classified
Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Persistent URL http://hdl.handle.net/10536/DRO/DU:30052751

Document type: Journal Article
Collection: Institute for Frontier Materials
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