Journal
NANOMATERIALS
Volume 8, Issue 7, Pages -Publisher
MDPI
DOI: 10.3390/nano8070559
Keywords
alpha-MoO3; carbon nitride; g-C3N4; molybdenum trioxide; nanoplates; synthesis
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Funding
- Santander Universidades through the Becas Iberoamerica Jovenes Profesores e Investigadores, Espana scholarship program
- IUCA, Universidad de Zaragoza
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Transition metal oxides and chalcogenides have recently attracted great attention as the next generation of 2-D materials due to their unique electronic and optical properties. In this study, a new procedure for the obtaining of highly crystalline alpha-MoO3 is proposed as an alternative to vapor-phase synthesis. In this approach, a first reaction between molybdate, citrate and thiourea allowed to obtain MoS2,which upon calcination at a temperature of 650 degrees C in the presence of g-C3N4 resulted in MoO3 with a definite plate-like shape. The colorless (or greenish) alpha-MoO3 nanoplates obtained with this procedure featured a multilayer stack structure, with a side-length of 1-2 mu m and a thickness of several nanometers viewed along the [010] direction. The nucleation-growth of the crystal can be explained by a two-dimensional layer-by-layer mechanism favored by g-C3N4 lamellar template.
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