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Title: K-enriched MoO 3 nanobundles: A layered structure with high electric conductivity
Authors: Hu, Z.
Zhou, C.
Zheng, M.
Lu, J.
Varghese, B. 
Cheng, H.
Sow, C.-H. 
Issue Date: 16-Feb-2012
Citation: Hu, Z., Zhou, C., Zheng, M., Lu, J., Varghese, B., Cheng, H., Sow, C.-H. (2012-02-16). K-enriched MoO 3 nanobundles: A layered structure with high electric conductivity. Journal of Physical Chemistry C 116 (6) : 3962-3967. ScholarBank@NUS Repository.
Abstract: We present a surprisingly simple procedure to synthesize potassium-intercalated MoO 3 nanobundles with the integrity of the layered structure remaining intact. While the material displays semiconductor-like behavior, dramatic enhancement of the electric conductivity from 10 -6 S m -1 of MoO 3 to 24 S m -1 upon potassium uptake was observed. Density functional theory calculations were performed to assist in structural determination and to elucidate the electronic property of the nanobundles. It was found that the K atoms occupy the oxygen vacancy sites in the lattice. The ionization of the K atoms gives rise to the reduction of the adjacent Mo atoms, leading to electron population in the conduction band. © 2011 American Chemical Society.
Source Title: Journal of Physical Chemistry C
ISSN: 19327447
DOI: 10.1021/jp211079b
Appears in Collections:Staff Publications

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