scholarly journals Synthesis and characterization of manganese–zinc ferrite obtained by thermal decomposition from organic precursors

2013 ◽  
Vol 115 (1) ◽  
pp. 471-477 ◽  
Author(s):  
Irena Szczygieł ◽  
Katarzyna Winiarska
Keyword(s):  
Thermal Decomposition ◽  
Zinc Ferrite ◽  
Synthesis And Characterization ◽  
Manganese Zinc ◽  
Manganese Zinc Ferrite ◽  
Organic Precursors

Synthesis and characterization of carbon nanotubes decorated with manganese–zinc ferrite nanospheres

2009 ◽  
Vol 116 (2-3) ◽  
pp. 658-662 ◽  
Author(s):  
Qi Zhang ◽  
Meifang Zhu ◽  
Qinghong Zhang ◽  
Yaogang Li ◽  
Hongzhi Wang
Keyword(s):  
Carbon Nanotubes ◽  
Zinc Ferrite ◽  
Synthesis And Characterization ◽  
Manganese Zinc ◽  
Manganese Zinc Ferrite

Preparation and characterization of composite magnetic photocatalyst MnxZn1−xFe2O4/β-Bi2O3

RSC Advances ◽  
2015 ◽  
Vol 5 (97) ◽  
pp. 79997-80004 ◽  
Author(s):  
Zhaodi Zhang ◽  
Longjun Xu ◽  
Chenglun Liu
Keyword(s):  
Zinc Ferrite ◽  
Magnetic Photocatalyst ◽  
Manganese Zinc ◽  
Manganese Zinc Ferrite ◽  
Magnetic Substrate ◽  
Calcination Method

Composite magnetic photocatalyst MnxZn1−xFe2O4/β-Bi2O3 was synthesized by a dip-calcination method using manganese zinc ferrite as a magnetic substrate.

Synthesis and Characterization of Nanocrystalline ZnO Powders by a Direct Thermal Decomposition Route Using Zinc Nitrate Hexahydrate

2013 ◽  
Vol 770 ◽  
pp. 68-71 ◽  
Author(s):  
Supphadate Sujinnapram ◽  
Uraiphorn Termsuk ◽  
Atcharawan Charoentam ◽  
Sutthipoj Sutthana
Keyword(s):  
Thermal Decomposition ◽  
Crystallization Temperature ◽  
Zinc Nitrate ◽  
Zinc Nitrate Hexahydrate ◽  
Absorption Peak ◽  
Synthesis And Characterization ◽  
Nitrate Hexahydrate ◽  
Different Temperatures ◽  
Zno Powders

The nanocrystalline ZnO powders were synthesized by a direct thermal decomposition using zinc nitrate hexahydrate as starting materials. The precursor was characterized by TG-DTA to determine the thermal decomposition and crystallization temperature which was found to be at 325 oC. The precursors were calcined at different temperatures of 400, 500, and 600°C for 4 h. The structure of the prepared samples was studied by XRD, confirming the formation of wurtzite structure. The synthesized powders exhibited the UV absorption below 400 nm (3.10 eV) with a well defined absorption peak at around 285 nm (4.35 eV). The estimated direct bandgaps were obtained to be 3.19, 3.16, and 3.14 eV for the ZnO samples thermally decomposed at 400, 500, and 600°C, respectively.

scholarly journals Electromagnetic Interference Shielding and Physical-Mechanical Characteristics of Rubber Composites Filled with Manganese-Zinc Ferrite and Carbon Black

Polymers ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 616
Author(s):  
Ján Kruželák ◽  
Andrea Kvasničáková ◽  
Klaudia Hložeková ◽  
Rastislav Dosoudil ◽  
Marek Gořalík ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Carbon Black ◽  
Zinc Ferrite ◽  
Mechanical Characteristics ◽  
Hybrid Composites ◽  
Rubber Matrix ◽  
Butadiene Rubber ◽  
Frequency Range ◽  
Manganese Zinc ◽  
Manganese Zinc Ferrite

In the present work, composite materials were prepared by incorporation of manganese-zinc ferrite, carbon black and combination of ferrite and carbon black into acrylonitrile-butadiene rubber (NBR). For cross-linking of composites, standard sulfur-based curing system was applied. The main goal was to investigate the influence of the fillers on the physical-mechanical properties of composites. Then, the electromagnetic absorption shielding ability was investigated in the frequency range 1 MHz–3 GHz. The results revealed that composites filled with ferrite provide sufficient absorption shielding performance in the tested frequency range. On the other hand, ferrite behaves as an inactive filler and deteriorates the physical-mechanical characteristics of composites. Carbon black reinforces the rubber matrix and contributes to the improvement of physical-mechanical properties. However, composites filled with carbon black are not able to absorb electromagnetic radiation in the given frequency range. Finally, the combination of carbon black and ferrite resulted in the modification of both physical-mechanical characteristics and absorption shielding ability of hybrid composites.

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