Controlled preparation and electromagnetic performance of MSiO3@C(M=Ni,Co)hollow composite micro-nanosphere

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  • Department of Chemical and Biological Engineering,Minjiang Teachers College,Fuzhou 350003

Received date: 2020-05-09

  Revised date: 2021-06-09

  Online published: 2021-09-07

Abstract

The silicon dioxide nanospheres were prepared by template method,and the nickel nitrate was reacted to the silicon dioxide nanospheres for hydrothermal reaction,then obtained the Ni2SiO3 hollow micro-nanospheres.And the NiSiO3@C nanospheres was calcined at high temperature after further coating.Replacing nickel nitrate with isomole nickel nitrate and cobalt nitrate,Ni0.5Co0.5SiO3 micro-nanospheres and Ni0.5Co0.5SiO3@C nanospheres were obtained.Using SEM,TEM,HAADF STEM and XRD,the composite structure of sample was characterized.Then the electromagnetic constant of NiSiO3@C and Ni0.5Co0.5SiO3@C coaxial ring samples was tested,and the results showed that the highest dielectric constant value of the NiSiO3@C coaxial ring sample was 2.7718,and the maximum dielectric loss was 0.1523.

Cite this article

Lin Yuan, Zhang Ying, Sun Xin . Controlled preparation and electromagnetic performance of MSiO3@C(M=Ni,Co)hollow composite micro-nanosphere[J]. New Chemical Materials, 2021 , 49(8) : 88 -92 . DOI: 10.19817/j.cnki.issn 1006-3536.2021.08.019

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