scholarly journals Synthesis of nitrogen-doped graphene wrapped SnO2 hollow spheres as high-performance microwave absorbers

RSC Advances ◽  
2019 ◽  
Vol 9 (19) ◽  
pp. 10745-10753 ◽  
Author(s):  
Weiyong Dai ◽  
Hui Luo ◽  
Fu Chen ◽  
Xian Wang ◽  
Ying Xiong ◽  
...  
Keyword(s):  
Microwave Absorption ◽  
Hollow Sphere ◽  
High Performance ◽  
Hollow Spheres ◽  
Absorption Properties ◽  
Microwave Absorption Properties ◽  
Microwave Absorbers ◽  
Nitrogen Doped ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene

Nitrogen-doped graphene/SnO2 hollow sphere hybrids were synthesized and show high-performance microwave absorption properties.

scholarly journals Nitrogen-doped graphene and titanium carbide nanosheet synergistically reinforced epoxy composites as high-performance microwave absorbers

RSC Advances ◽  
2017 ◽  
Vol 7 (44) ◽  
pp. 27755-27761 ◽  
Author(s):  
Yuchang Qing ◽  
Hanyi Nan ◽  
Fa Luo ◽  
Wancheng Zhou
Keyword(s):  
Titanium Carbide ◽  
High Performance ◽  
Epoxy Composites ◽  
Frequency Range ◽  
Microwave Absorbers ◽  
Nitrogen Doped ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene

The electromagnetic (EM) properties of both nitrogen-doped graphene (N-GP) and Ti3C2 nanosheets as hybrid absorbers were investigated in the frequency range of 2–18 GHz.

Solvothermal synthesis of flower-like CoS hollow microspheres with excellent microwave absorption properties

RSC Advances ◽  
2016 ◽  
Vol 6 (102) ◽  
pp. 100392-100400 ◽  
Author(s):  
Tingyuan Huang ◽  
Man He ◽  
Yuming Zhou ◽  
Shiwei Li ◽  
Binbin Ding ◽  
...  
Keyword(s):  
Microwave Absorption ◽  
Solvothermal Synthesis ◽  
Solvothermal Method ◽  
Hollow Spheres ◽  
Hollow Microspheres ◽  
Absorption Properties ◽  
Microwave Absorption Properties ◽  
Microwave Absorbers ◽  
Facile Solvothermal Method

In this study, flower-like CoS hollow spheres (CHSs), synthesized via a facile solvothermal method in the presence of CTAB, were initially investigated as microwave absorbers.

Cobalt nanoparticles encapsulated in a nitrogen and oxygen dual-doped carbon matrix as high-performance microwave absorbers

2019 ◽  
Vol 6 (9) ◽  
pp. 2472-2480 ◽  
Author(s):  
Sifan Zeng ◽  
Mengyu Wang ◽  
Wanlin Feng ◽  
Lini Zhu ◽  
Zhen Teng ◽  
...  
Keyword(s):  
Microwave Absorption ◽  
High Performance ◽  
Magnetic Loss ◽  
Carbon Matrix ◽  
Cobalt Nanoparticles ◽  
Absorption Properties ◽  
Microwave Absorption Properties ◽  
Microwave Absorbers ◽  
Loss Mechanisms

Co@NOC composites showed impressive microwave absorption properties owing to multiple dielectric and magnetic loss mechanisms.

scholarly journals Effect of Reaction Time on Microwave Absorption Properties of Fe3O4 Hollow Spheres Synthesized via Ostwald Ripening

Materials ◽  
2019 ◽  
Vol 12 (18) ◽  
pp. 2921 ◽  
Author(s):  
Wei Huang ◽  
Yujiang Wang ◽  
Shicheng Wei ◽  
Bo Wang ◽  
Yi Liang ◽  
...  
Keyword(s):  
Reaction Time ◽  
Microwave Absorption ◽  
Ostwald Ripening ◽  
Impedance Matching ◽  
Hollow Spheres ◽  
Absorption Properties ◽  
Microwave Absorption Properties ◽  
Magnetic Structures ◽  
Absorption Performance ◽  
Microwave Absorption Performance

Hollow magnetic structures have great potential to be used in the microwave absorbing field. Herein, Fe3O4 hollow spheres with different levels of hollowness were synthesized by the hydrothermal method under Ostwald ripening effect. In addition to their microstructures, the microwave absorption properties of such spheres were investigated. The results show that the grain size and hollowness of Fe3O4 hollow spheres both increase as the reaction time increases. With increasing hollowness, the attenuation ability of electromagnetic wave of Fe3O4 spheres increases first and then decreases, finally increases sharply after the spheres break down. Samples with strong attenuation ability can achieve good impedance matching, which it does preferentially as the absorber thickness increases. Fe3O4 hollow spheres show the best microwave absorption performance when the reaction time is 24 h. The minimum reflection loss (RL (min)) can reach −40 dB, while the thickness is only 3.2 mm.

Exploration of the Active Center Structure of Nitrogen-Doped Graphene for Control over the Growth of Co3O4 for a High-Performance Supercapacitor

2017 ◽  
Vol 1 (1) ◽  
pp. 143-153 ◽  
Author(s):  
Xiaoning Tian ◽  
Xiaolong Sun ◽  
Zhongqing Jiang ◽  
Zhong-Jie Jiang ◽  
Xiaogang Hao ◽  
...  
Keyword(s):  
Active Center ◽  
High Performance ◽  
Nitrogen Doped ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene

scholarly journals Ultrafast-charging and long cycle-life anode materials of TiO2-bronze/nitrogen-doped graphene nanocomposites for high-performance lithium-ion batteries

RSC Advances ◽  
2020 ◽  
Vol 10 (71) ◽  
pp. 43811-43824
Author(s):  
Thanapat Autthawong ◽  
Yothin Chimupala ◽  
Mitsutaka Haruta ◽  
Hiroki Kurata ◽  
Tsutomu Kiyomura ◽  
...  
Keyword(s):  
Anode Materials ◽  
High Performance ◽  
High Stability ◽  
Lithium Ion ◽  
Graphene Nanocomposites ◽  
Nitrogen Doped ◽  
Long Cycle Life ◽  
Fast Charging ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene

The TiO2-bronze/nitrogen-doped graphene nanocomposites have the potential for fast-charging and have high stability, showing potential as an anode material in advanced power batteries for next-generation applications.

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