Study of the morphological evolution of vanadium pentoxide nanostructures under hydrothermal conditions

CrystEngComm, 2016, 18, 7636-7641

Figure: (a) HRTEM images of sample SAM06 (a); (b) and (c) fast Fourier transform (FFT) of the NP1 and NP2 regions illustrated in (a).

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Writers: Avansi, W. and Oliveira, C. L. P. and Ribeiro, C. and Leite, E. R. and Mastelaro, V. R.

Keywords: nanostructures; X-ray

Abstract: A detailed study on the morphological evolution of one-dimensional (1D) vanadium pentoxide (V2O5) nanostructures was performed. Small-angle X-ray scattering (SAXS) and electron microcopy techniques were used for the analyses of the influence of synthesis parameters on a hydrothermal synthesis method of V2O5 nanostructures based on the degradation of a peroxocomplex precursor. A mechanism that explains the morphological evolution under different experimental conditions is proposed and the role of the dehydration process as well as the importance of the oriented attachment (OA) mechanism is discussed.

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