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.

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 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.

Solvothermal Synthesis of TiO2 Hollow Microsphere and Its Photocatalytic Properties

2011 ◽  
Vol 356-360 ◽  
pp. 345-348
Author(s):  
Jin Guo Wang ◽  
Jian Zhu ◽  
Xi Li ◽  
He Xing Li
Keyword(s):  
Photocatalytic Activity ◽  
Solvothermal Synthesis ◽  
Solvothermal Method ◽  
Uv Light ◽  
Hollow Structure ◽  
Hollow Microsphere ◽  
Hollow Microspheres ◽  
Photocatalytic Properties ◽  
Multiple Reflections ◽  
Facile Solvothermal Method

TiO2hollow microspheres were synthesized by a facile solvothermal method. The prepared samples were characterized by the XRD, SEM, TEM, BET and UV-vis. The results showed that the TiO2hollow microspheres offered an enhanced photocatalytic activity due to the multiple reflections of the UV light within the inner hollow structure.

Synthesis of flower-like CuS hollow microspheres based on nanoflakes self-assembly and their microwave absorption properties

2015 ◽  
Vol 3 (19) ◽  
pp. 10345-10352 ◽  
Author(s):  
Biao Zhao ◽  
Gang Shao ◽  
Bingbing Fan ◽  
Wanyu Zhao ◽  
Yajun Xie ◽  
...  
Keyword(s):  
Absorption Band ◽  
Microwave Absorption ◽  
Self Assembly ◽  
Hollow Microspheres ◽  
Strong Absorption ◽  
Band Width ◽  
Absorption Properties ◽  
Microwave Absorption Properties ◽  
Wide Absorption Band

The flower-like CuS hollow microspheres exhibit the advantages of strong absorption, thin thickness, wide absorption band width and lightweight.

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