Preparation method of Fe-doped stannic oxide/reduced graphene oxide nanometer composite wave absorption material

A nano-composite material and tin dioxide technology, which is applied in the field of electromagnetic composite materials, can solve the problems of high density and narrow absorption frequency band, and achieve the effects of enhancing absorption capacity, easy operation and good wave absorption performance.
CN109348696AActive Publication Date: 2019-02-15ANHUI UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
ANHUI UNIV OF SCI & TECH
Publication Date
2019-02-15

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Abstract

The invention discloses a Fe-doped stannic oxide / reduced graphene oxide (Fe-SnO2 / RGO) nanometer composite wave absorption material and a preparation method thereof. The Fe-SnO2 / RGO binary composite material is prepared by taking graphene oxide (GO), tin tetrachloride pentahydrate and iron nitrate nonahydrate as a precursor and by one-step hydrothermal reaction. The preparation method is green andenvironmental-friendly, no any harmful side product is generated, and the preparation process is simple and is low in cost. The prepared binary nanometer composite wave absorption material has the characteristics of high absorption strength, dual-band (C and Ku bands) absorption, low density and the like; and by adjusting the content of Fe<3+> doped in the composite material and the thickness of awave absorption coating layer, effective absorption of electromagnetic waves at different bands can be achieved, and the preparation method has important application value in the field of electromagnetic absorption and electromagnetic shielding.
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Description

technical field

[0001] The invention belongs to the field of electromagnetic composite materials, and in particular relates to a preparation method of a reduced graphene oxide-based nanocomposite wave-absorbing material. technical background

[0002] With the increasingly serious problems of electromagnetic interference and electromagnetic pollution, the development of electromagnetic wave absorbing materials has become a research hotspot in the field of functional materials. However, traditional electromagnetic wave absorbing materials, such as ferrite, metal micropowder, and silicon carbide, usually have the disadvantages of narrow absorption band and high density, which limits their practical applications. Therefore, the development of new electromagnetic wave absorbing materials with "thin thickness, wide absorption frequency band, light weight, and high electromagnetic wave absorption intensity" has important application prospects.

[0003] Nanomaterials have the chara...

Claims

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