scholarly journals The development of a magnetic iron/nitrogen-doped graphitized carbon composite with boosted microwave attenuation ability as the wideband microwave absorber

2021 ◽  
Author(s):  
Cong Chen ◽  
Wen Chen ◽  
Bing Zong ◽  
Xiaohai Ding ◽  
Haitao Dong
Keyword(s):  
Dielectric Loss ◽  
Carbon Composite ◽  
Microwave Absorber ◽  
Nitrogen Doped ◽  
Graphitized Carbon ◽  
Microwave Attenuation ◽  
Magnetic Carbon ◽  
Carbon Based

Magnetic carbon-based composites have been attractive candidates for electromagnetic (EM) absorption due to their dual magnetic and dielectric loss ability.

Porous-carbon-based Mo2C nanocomposites as excellent microwave absorber: a new exploration

Nanoscale ◽  
2018 ◽  
Vol 10 (15) ◽  
pp. 6945-6953 ◽  
Author(s):  
Sisi Dai ◽  
Yan Cheng ◽  
Bin Quan ◽  
Xiaohui Liang ◽  
Wei Liu ◽  
...  
Keyword(s):  
Dielectric Loss ◽  
Porous Carbon ◽  
Carbothermal Reduction ◽  
Microwave Absorber ◽  
Microwave Absorbing ◽  
Carbon Based

The as-obtained porous-carbon-based Mo2C nanocomposites via typical carbothermal reduction exhibit outstanding dielectric loss and microwave absorbing performance by resorting to the suitable mechanisms.

Thermal Characterization of Carbon-Carbon Composites

2011 ◽  
Author(s):  
Messiha Saad ◽  
Darryl Baker ◽  
Rhys Reaves
Keyword(s):  
Thermal Conductivity ◽  
Thermal Properties ◽  
Thermal Diffusivity ◽  
Specific Heat ◽  
Critical Role ◽  
Carbon Composite ◽  
Flash Method ◽  
Carbon Composites ◽  
Energy Storage Devices ◽  
Graphitized Carbon

Thermal properties of materials such as specific heat, thermal diffusivity, and thermal conductivity are very important in the engineering design process and analysis of aerospace vehicles as well as space systems. These properties are also important in power generation, transportation, and energy storage devices including fuel cells and solar cells. Thermal conductivity plays a critical role in the performance of materials in high temperature applications. Thermal conductivity is the property that determines the working temperature levels of the material, and it is an important parameter in problems involving heat transfer and thermal structures. The objective of this research is to develop thermal properties data base for carbon-carbon and graphitized carbon-carbon composite materials. The carbon-carbon composites tested were produced by the Resin Transfer Molding (RTM) process using T300 2-D carbon fabric and Primaset PT-30 cyanate ester. The graphitized carbon-carbon composite was heat treated to 2500°C. The flash method was used to measure the thermal diffusivity of the materials; this method is based on America Society for Testing and Materials, ASTM E1461 standard. In addition, the differential scanning calorimeter was used in accordance with the ASTM E1269 standard to determine the specific heat. The thermal conductivity was determined using the measured values of their thermal diffusivity, specific heat, and the density of the materials.

Co3Fe7 nanoparticles encapsulated in porous nitrogen-doped carbon nanofiber as bifunctional electrocatalysts for rechargeable zinc-air battery

2021 ◽  
Author(s):  
Miaomiao Liu ◽  
Yulong He ◽  
Jintao Zhang
Keyword(s):  
Oxygen Reduction ◽  
Active Sites ◽  
Carbon Nanofiber ◽  
Nitrogen Doped ◽  
Bifunctional Electrocatalysts ◽  
Air Battery ◽  
Nitrogen Doped Carbon ◽  
Carbon Based

Exploration of inexpensitive and high perfomance carbon-based electrocatalyst with abundant active sites for oxygen reduction and evolution reactions is vital for enhancing the performance of zinc air battery. Herein, the...

scholarly journals Determination of the hyperfine magnetic field in magnetic carbon-based materials: DFT calculations and NMR experiments

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Jair C. C. Freitas ◽  
Wanderlã L. Scopel ◽  
Wendel S. Paz ◽  
Leandro V. Bernardes ◽  
Francisco E. Cunha-Filho ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Dft Calculations ◽  
Hyperfine Magnetic Field ◽  
Magnetic Carbon ◽  
Carbon Based
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