Ba(CoTi)1.22Fe9.56O19 ferrites prepared by sol–gel method and solid-state method techniques

Zhang, Dainan; Zhang, Huaiwu; Wu, Yang; Li, Qiang; Ma, Guokun

doi:10.1007/s00339-016-9845-9

Cited by 6 publications

(1 citation statement)

References 32 publications

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“…The pH of the final solution was then raised to 7 by adding ammonia solution drop by drop [17], and the temperature of the hot plate was raised to 90-100 °C with continuous stirring to uniformly mix the solution. As a result, the solution was evaporated, and all of the water was removed, yielding a dried precursor [18]. To investigate the influence of calcination on structural and morphological qualities, the powder was crushed in a mortar and calcined in air for 3 hours at varied temperatures of 350, 400, and 450 °C in a research oven.…”

Section: Sample Synthesismentioning

confidence: 99%

Structural and morphological studies of ZnO nanostructures

Mohammad¹,

Al-Jaf²,

Ahmed³

et al. 2022

JOR

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Zinc oxide (ZnO) nanostructures were manufactured successfully using the sol-gel approach in this study. The impact of calcination temperatures on their structural and morphological properties is studied using three different calcination temperatures (350, 400, and 450 °C). XRD, FE-SEM, EDS, and a Raman scattering spectroscope were used to characterize the samples. In all samples, X-ray diffraction (XRD) of calcined samples (350-450 °C) reveals the presence of the wurtzite hexagonal nanocrystalline structure of ZnO compound. The XRD patterns showed no additional peaks, indicating that the final product is exclusively ZnO nanostructures. The FE-SEM pictures of a calcined ZnO sample at 450°C revealed a porous structure, longer length and diameter, and agglomeration of mixed polyhedral shape particles as the calcination temperature increased. The presence of necessary oxide material in the EDS spectrum confirmed the synthesis of ZnO, indicating that the purity of ZnO was appropriate. Finally, using Raman spectroscopy, the vibrational characteristics of ZnO were studied. Several bands in Raman spectra appeared to belong to ZnO vibrational modes, confirming the purity of the produced ZnO samples. The findings of such a study were presented in this paper.

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Section: Sample Synthesismentioning

confidence: 99%