Synthesis of α-Mo2C by Carburization of α-MoO3 Nanowires and Its Electrocatalytic Activity towards Tri-iodide Reduction for Dye-Sensitized Solar Cells

Theerthagiri, J. and Senthil, R.A. and Buraidah, M.H. and Madhavan, J. and Arof, Abdul Kariem (2016) Synthesis of α-Mo2C by Carburization of α-MoO3 Nanowires and Its Electrocatalytic Activity towards Tri-iodide Reduction for Dye-Sensitized Solar Cells. Journal of Materials Science & Technology, 32 (12). pp. 1339-1344. ISSN 1005-0302

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Official URL: http://dx.doi.org/10.1016/j.jmst.2016.03.003

Abstract

Nanowire-shaped α-MoO3 was synthesized on a large scale by hydrothermal route. Nanocrystalline α-Mo2C phase was obtained by the carburization of α-MoO3 nanowires with urea as a carbon source precursor. The phase purity and crystalline size of the synthesized materials were ascertained by using powder X-ray diffraction. The shape and morphology of synthesized materials were characterized by field-emission scanning electron microscopy (FE-SEM) and high resolution transmission electron microscopy (HR-TEM). The electrocatalytic activity of α-Mo2C for I−/I3− redox couple was investigated by the cyclic voltammetry. The synthesized α-Mo2C was subsequently applied as counter electrode in dye-sensitized solar cells to replace the expensive platinum.

Item Type: Article
Uncontrolled Keywords: Counter electrode; Dye-sensitized solar cells; Electrocatalytic activity; Molybdenum carbide; Molybdenum oxide
Subjects: Q Science > QC Physics
Divisions: Faculty of Science > Dept of Physics
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 07 Sep 2017 04:46
Last Modified: 05 Oct 2018 01:24
URI: http://eprints.um.edu.my/id/eprint/17732

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