Structural, optical, and magnetic properties of NiMoO4 nanorods prepared by microwave sintering

• Autor(a) principal: Moura, Ana Paula de [UNESP]
• Data de Publicação: 2015
• Outros Autores: Oliveira, Larissa Helena de [UNESP], Rosa, Ieda Lucia Viana, Xavier, Camila Soares [UNESP], Lisboa-Filho, Paulo Noronha [UNESP], Li, Máximo Siu, La Porta, Felipe de Almeida [UNESP], Longo, Elson [UNESP], Varela, José Arana [UNESP]
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.1155/2015/315084; http://hdl.handle.net/11449/131317

We report on the structural, optical, and magnetic properties of α,β-NiMoO4 nanorods synthesized by annealing the NiMoO4:nH2O precursor at 600°C for 10 minutes in a domestic microwave. The crystalline structure properties of α,β-NiMoO4 were investigated using X-ray diffraction (XRD), Fourier transform infrared (FTIR), and Raman (FT-Raman) spectroscopies. The particle morphologies and size distributions were identified by field emission microscopy (FE-SEM). Experimental data were obtained by magnetization measurements for different applied magnetic fields. Optical properties were analyzed by ultraviolet-visible (UV-vis) and photoluminescence (PL) measurements. Our results revealed that the oxygen atoms occupy different positions and are very disturbed in the lattice and exhibit a particular characteristic related to differences in the length of the chemical bonds (Ni-O and Mo-O) of the cluster structure or defect densities in the crystalline α,β-NiMoO4 nanorods, which are the key to a deeper understanding of the exploitable physical and chemical properties in this study.