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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Coordenadação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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.

Universidade Federal de São Carlos, Departamento de Química, Centro de Ciências Exatas e de Tecnologia

Universidade de São Paulo, Departamento de Física, Instituto de Física de São Carlos

Universidade Estadual Paulista, Departamento de Físico Química, Instituto de Química de Araraquara

Universidade Estadual Paulista, Departamento de Física, Faculdade de Ciências de Bauru

FAPESP: 2013/07296-2

CNPq: 573636/2008-7