Highly omnidirectional and frequency tunable multilayer graphene-based monopole patch antennas

2019 ◽  
Vol 7 (26) ◽  
pp. 7915-7921
Author(s):  
Yun Ki Kim ◽  
Yeri Lee ◽  
Keun-Young Shin ◽  
Jyongsik Jang
Keyword(s):  
Carbon Nanotube ◽  
Multilayer Graphene ◽  
Patch Antennas ◽  
Fabrication Method ◽  
Multi Walled Carbon Nanotube ◽  
Facile Fabrication ◽  
Frequency Tunable ◽  
Tunable Antennas

Highly omnidirectional and frequency tunable antennas based on multilayer graphene/multi-walled carbon nanotube electrodes were produced by a facile fabrication method.

scholarly journals Photoluminescent Properties of Hydroxyapatite and Hydroxyapatite/Multi-Walled Carbon Nanotube Composites

Crystals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 832
Author(s):  
Edna X. Figueroa-Rosales ◽  
Javier Martínez-Juárez ◽  
Esmeralda García-Díaz ◽  
Daniel Hernández-Cruz ◽  
Sergio A. Sabinas-Hernández ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Hexagonal Phase ◽  
Precipitation Method ◽  
X Ray Diffraction ◽  
X Ray ◽  
Multi Walled Carbon Nanotube ◽  
Nanotube Composites ◽  
Carbon Nanotube Composites ◽  
Co Precipitation ◽  
Functionalized Mwcnts

Hydroxyapatite (HAp) and hydroxyapatite/multi-walled carbon nanotube (MWCNT) composites were obtained by the co-precipitation method, followed by ultrasound-assisted and microwave radiation and thermal treatment at 250 °C. X-ray diffraction (XRD) confirmed the presence of a hexagonal phase in all the samples, while Fourier-transform infrared (FTIR) spectroscopy elucidated the interaction between HAp and MWCNTs. The photoluminescent technique revealed that HAp and the composite with non-functionalized MWCNTs present a blue luminescence, while the composite with functionalized MWCNTs, under UV-vis radiation shows an intense white emission. These findings allowed presentation of a proposal for the use of HAp and HAp with functionalized MWCNTs as potential materials for optoelectronic and medical applications.

Adsorption performance of multi-walled carbon nanotube-SiO2 adsorbent for toluene

2021 ◽  
Vol 49 (6) ◽  
pp. 861-872
Author(s):  
Wei LIU ◽  
Zhuang LI ◽  
Shao-peng ZHANG ◽  
Wei-wei JIAN ◽  
Dan-zhu MA
Keyword(s):  
Carbon Nanotube ◽  
Adsorption Performance ◽  
Multi Walled Carbon Nanotube
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