doi:10.3390/nano8070559engMartín-Ramos, PabloFernández-Coppel, Ignacio A.Avella, ManuelMartín-Gil, Jesúsa-MoO3 Crystals with a Multilayer Stack Structure Obtained by Annealing from a Lamellar MoS2/g-C3N4 NanohybridART-2018-106903Transition 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.2018http://zaguan.unizar.es/record/7118510.3390/nano8070559http://zaguan.unizar.es/record/71185oai:zaguan.unizar.es:71185Nanomaterials 8, 7 (2018), 8070559 [9 pp.]byhttp://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccess