Multiwalled carbon nanotubes crowned with nickel‐ferrite magnetic nanoparticles assisted heterogeneous catalytic strategy for the synthesis of benzo[ d ]imidazo[2,1‐ b ]thiazole scaffolds

2020 ◽  
Vol 57 (12) ◽  
pp. 4331-4347
Author(s):  
Deepika Geedkar ◽  
Ashok Kumar ◽  
Pratibha Sharma
Keyword(s):  
Carbon Nanotubes ◽  
Magnetic Nanoparticles ◽  
Multiwalled Carbon Nanotubes ◽  
Nickel Ferrite ◽  
Multiwalled Carbon ◽  
Heterogeneous Catalytic

scholarly journals Uraemic Toxins Generated in the Presence of FullereneC60, Carbon-Encapsulated Magnetic Nanoparticles, and Multiwalled Carbon Nanotubes

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Magdalena Popławska ◽  
Hanna Krawczyk
Keyword(s):  
Carbon Nanotubes ◽  
Magnetic Nanoparticles ◽  
Multiwalled Carbon Nanotubes ◽  
Conversion Degree ◽  
Multiwalled Carbon ◽  
Forms Of Carbon

Uraemic toxins—creatol and N-methylguanidine—are generated in conversion of creatinine in water in the presence of various forms of carbon such as fullerene C60, carbon-encapsulated magnetic nanoparticles, and multiwalled carbon nanotubes and oxygen. The conversion degree for creatinine was different for fullerene C60, CEMNPs, and MWCNTs and was 9% (3.6% creatol, 5.4% N-methylguanidine), 35% (12% creatol, 23% N-methylguanidine), and 75% (16% creatol, 59% N-methylguanidine), respectively.

Magnetic Nanoparticles Decorated Multiwalled Carbon Nanotubes Dispersed Nanofluids

2011 ◽  
Author(s):  
Tessy Theres Baby ◽  
Sundara Ramaprabhu ◽  
Alka B. Garg ◽  
R. Mittal ◽  
R. Mukhopadhyay
Keyword(s):  
Carbon Nanotubes ◽  
Magnetic Nanoparticles ◽  
Multiwalled Carbon Nanotubes ◽  
Multiwalled Carbon

scholarly journals Hydrothermal Synthesis and Microwave Absorption Properties of Nickel Ferrite/Multiwalled Carbon Nanotubes Composites

Coatings ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 534
Author(s):  
Lei Guo ◽  
Yusong He ◽  
Dong Chen ◽  
Bin Du ◽  
Wei Cao ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Microwave Absorption ◽  
Multiwalled Carbon Nanotubes ◽  
Nickel Ferrite ◽  
High Efficiency ◽  
Scale Production ◽  
Absorption Properties ◽  
Multiwalled Carbon ◽  
Microwave Absorption Properties ◽  
Hierarchical Nanostructure

It is well accepted that the microwave absorption performance of ferrite can be enhanced via the hybridization. However, it is still very challenging to design the hierarchical nanostructure of ferrite hybrids to fabricate wave absorbing composites with both the high efficiency and lightweight. Herein, we successfully realize the in-situ synthesis of nickel ferrite/multiwalled carbon nanotubes (NiFe2O4/MWCNTs) hybrids with a large-scale production by the hydrothermal method. The structural characteristics, morphology, electromagnetic and microwave absorption properties were analyzed by X-ray diffraction, scanning electron microscope and vector network analyzer. The morphological study shows that NiFe2O4 nanoparticles with a small size (tens of nanometers) are coated on the MWCNTs, leading to a three-dimensional hierarchical nanostructure. The NiFe2O4/MWCNTs hybrids show satisfied microwave absorption properties. Typically, the optimized sample shows the minimum reflection loss of −19 dB at 11.3 GHz, and the bandwidth of the reflectivity below −10 dB is 2.5 GHz with a thin thickness of 1.5 mm. This result shall be due to the improved dielectric losses or interface polarization etc. Our results demonstrate a facile approach for the design of ferrite-based microwave absorber to meet the requirements of lightweight, thin-thickness and high efficiency.

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