a-MoO3 Crystals with a Multilayer Stack Structure Obtained by Annealing from a Lamellar MoS2/g-C3N4 Nanohybrid

Martín-Ramos, Pablo (Universidad de Zaragoza) ; Fernández-Coppel, Ignacio A. ; Avella, Manuel ; Martín-Gil, Jesús

Resumen: 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 a-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 °C in the presence of g-C3N4—resulted in MoO3 with a definite plate-like shape. The colorless (or greenish) a-MoO3 nanoplates obtained with this procedure featured a multilayer stack structure, with a side-length of 1–2 µm 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.

Idioma: Inglés

DOI: 10.3390/nano8070559

Año: 2018

Publicado en: Nanomaterials 8, 7 (2018), 8070559 [9 pp.]
ISSN: 2079-4991

Factor impacto JCR: 4.034 (2018)

Categ. JCR: MATERIALS SCIENCE, MULTIDISCIPLINARY rank: 71 / 293 = 0.242 (2018) - Q1 - T1
Categ. JCR: NANOSCIENCE & NANOTECHNOLOGY rank: 39 / 94 = 0.415 (2018) - Q2 - T2

Factor impacto SCIMAGO: 0.896 - Materials Science (miscellaneous) (Q1) - Chemical Engineering (miscellaneous) (Q1)

Tipo y forma: Artículo (Versión definitiva)

Área (Departamento): Area Ingeniería Agroforestal (Dpto. CC.Agrar.y Medio Natural)