Synthesis and Characterization of MoO2 Nanoplates Prepared by Thermal Evaporation of MoO3 and S Powders

Article Preview

Abstract:

MoO2 has been widely used in many fields such as catalyst, gas-senor, super capacitor and Li-ion battery electrode. In this paper, MoO2 nanoplates were synthesized in high density and large scale on silicon substrates via simple thermal evaporation of MoO3 and S powders at 950 °C in a tube furnace. The morphology, composition and structure of the nanoplates were characterized by scanning electron microscopy, X-ray diffraction and transmission electron microscopy. The results indicate that the as-synthesized nanoplates are of well crystalline structure, and the thickness of these nanoplates is in the range of 100-300 nm. The growth mechanism of the nanoparticles was proposed as a vapor-solid process.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

3-6

Citation:

Online since:

July 2016

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2016 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] Y A Yang, Y W Cao, B H Loo, et al., Microstructures of electrochromic MoO3 thin films colored by injection of different cations, J. Phys. Chem. B 102 (1998) 9392-9396.

DOI: 10.1021/jp9825922

Google Scholar

[2] J N Yao, Y A Yang, B H Loo, Enhancement of photochromism and Electrochromism in MoO3/Au and MoO3/Pt thin films, J. Phys. Chem. B 102 (1998) 1856-1860.

DOI: 10.1021/jp972217u

Google Scholar

[3] H K Joshi, S Sarkar, A novel in situ gamma-alumina coating method and CO oxidation over MoO3/Cu catalysts, Ind. Eng. Chem. Res. 40 (2001) 5543-5546.

DOI: 10.1021/ie990502p

Google Scholar

[4] C Shen, The researches on the crystallographic problems of the space group P21/n, J. Changsha Univ. Electric Power 17 (2002) 75-77.

Google Scholar

[5] J G Liu, Z J Zhang, C Y Pan, et al., Enhanced field emission properties of MoO2 nanorods with controllable shape and orientation, Mater. Lett. 58 (2004) 3812-3815.

DOI: 10.1016/j.matlet.2004.07.034

Google Scholar

[6] B G Brandt, A C Skapski, A refinement of the crystal structure of molybdenum dioxide, Acta Chem. Scandinavica 21 (1967) 661-672.

DOI: 10.3891/acta.chem.scand.21-0661

Google Scholar

[7] V Eyert, R Horny, KH Hock, et al., Embedded peierls instability and the electronic structure of MoO2, J. Phys.: Condens. Matter 12 (2000) 4923-4946.

DOI: 10.1088/0953-8984/12/23/303

Google Scholar

[8] C J Zhong, M M Maye, Core-shell assembled nanoparticles as catalysts, Adv. Mater. 13 (2001) 1507-1511.

DOI: 10.1002/1521-4095(200110)13:19<1507::aid-adma1507>3.0.co;2-#

Google Scholar

[9] Y C Zou, Z G Chen, J Lin , et al., Morphological control of SnTe nanostructures by tuning catalyst composition, Nano Res. 8 (2015) 3011-3019.

DOI: 10.1007/s12274-015-0806-y

Google Scholar

[10] R S Wagner, W C Ellis, Vapor-liquid-solid mechanism of single crystal growth, Appl. Phys. Lett. 4 (1964) 89-90.

DOI: 10.1063/1.1753975

Google Scholar

[11] N Selvakumar, A Thaker, J Si, H C Barshilia, Vapor-solid growth of molybdenum oxide nanowhiskers: wettability studies and growth process, J. Nanosci. Nanotechno. 5 (2013) 842-849.

DOI: 10.1166/nnl.2013.1625

Google Scholar