High-Efficiency Supercapacitor Electrodes of CVD-grown Graphenes Hybridized with Multiwalled Carbon Nanotubes

2015 ◽  
Vol 36 (8) ◽  
pp. 2111-2115 ◽  
Author(s):  
Amir Abul Kalam ◽  
Soobin Park ◽  
Yongho Seo ◽  
Joonho Bae
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
High Efficiency ◽  
Multiwalled Carbon

High-efficiency PdCu alloy nanocube catalyst supported on N-doped multiwalled carbon nanotubes for alcohol electrooxidation

Ionics ◽  
2015 ◽  
Vol 21 (7) ◽  
pp. 1989-1996 ◽  
Author(s):  
Lu Niu ◽  
Qing Zhang ◽  
Shujun Chao ◽  
Min Shi ◽  
Rumeng Huang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
High Efficiency ◽  
Multiwalled Carbon ◽  
Alcohol Electrooxidation

scholarly journals Synthesis of Multiwalled Carbon Nanotubes-Titania Nanomaterial for Desulfurization of Model Fuel

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Tawfik A. Saleh ◽  
Mohammad N. Siddiqui ◽  
Abdulrahman A. Al-Arfaj
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
High Efficiency ◽  
Petroleum Industry ◽  
Fuel Oil ◽  
Organosulfur Compounds ◽  
Adsorptive Desulfurization ◽  
Multiwalled Carbon ◽  
Batch Mode ◽  
Model Fuel

This work reported on the development of novel nanomaterials of multiwalled carbon nanotubes doped with titania (CNT/TiO2) for the adsorptive desulfurization of model fuel oils. Various analytical techniques such as field emission scanning electron microscope (FESEM), energy dispersive X-ray spectroscopy (EDX), and Fourier transform infrared spectroscopy (FTIR) were used for the characterization of the nanomaterials. The initial results indicated the effectiveness of the prepared CNT/TiO2nanomaterials in removing sulfur compounds from model fuel oil. The adsorption of DBT, BT, and thiophene from model fuel onto the derived sorbents was performed using batch mode system. These CNT/TiO2nanomaterials initially afforded approximately 45% removal of DBT, 55% BT, and more than 65% thiophene compounds from model fuels. The CNT/TiO2nanomaterials provided an excellent activity towards interaction with organosulfur compounds. More experiments are underway to optimize the parameters for the adsorptive desulfurization processes. We believe that these nanomaterials as adsorbents will find useful applications in petroleum industry because of their operational simplicity, high efficiency, and high capacity.

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.

Effect of Multiwalled Carbon Nanotubes On Mechanical Properties of Concrete

2012 ◽  
Vol 2 (6) ◽  
pp. 166-168 ◽  
Author(s):  
Dr.T.Ch.Madhavi Dr.T.Ch.Madhavi ◽  
◽  
Pavithra.P Pavithra.P ◽  
Sushmita Baban Singh Sushmita Baban Singh ◽  
S.B.Vamsi Raj S.B.Vamsi Raj ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Multiwalled Carbon
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