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Preparation method of molybdenum diselenide (at) RGO composite material with adjustable heterostructure and multiple microwave absorption bands

A composite material and microwave absorption technology, applied in structural parts, battery electrodes, circuits, etc., can solve problems such as poor impedance matching, hindering development, and weak conductivity, so as to improve conductivity, increase heterogeneous interface loss, and increase coupling Effect of Polarization Loss

Pending Publication Date: 2022-06-17
HARBIN NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve existing pure MoSe 2 Weak conductivity, easy aggregation during the reaction process, and poor impedance matching hinder its development in

Method used

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  • Preparation method of molybdenum diselenide (at) RGO composite material with adjustable heterostructure and multiple microwave absorption bands
  • Preparation method of molybdenum diselenide (at) RGO composite material with adjustable heterostructure and multiple microwave absorption bands
  • Preparation method of molybdenum diselenide (at) RGO composite material with adjustable heterostructure and multiple microwave absorption bands

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Example Embodiment

[0028]具体实施方式一：本实施方式一种具有可调异质结构和多微波吸收带的二硒化钼@RGO复合材料的制备方法，是按以下步骤完成的：

[0029]一、制备反应液；

[0030]①、将氧化石墨烯分散到去离子水与无水乙醇的混合溶液中，搅拌，得到均匀分散的悬浮液；

[0031]②、将均匀分散的悬浮液在室温下搅拌，然后加入Na2MoO4·2H2O，室温下搅拌，再加入Se和NaBH4，持续搅拌溶液直至溶液变成红棕色；得到反应液；

[0032]二、溶剂热反应：

[0033]①、将反应液转移到特氟龙内衬的高压釜中，再升温至180℃～220℃，在180℃～220℃下保持，得到反应产物；

[0034]②、依次使用无水乙醇和去离子水对反应产物进行离心洗涤，再干燥，自然冷却至室温，得到具有可调异质结构和多微波吸收带的二硒化钼@RGO复合材料。

Example Embodiment

[0035]具体实施方式二：本实施方式与具体实施方式一不同点是：步骤一①中所述的去离子水与无水乙醇的混合溶液中去离子水与无水乙醇的体积比为1:1。其它步骤与具体实施方式一相同。

Example Embodiment

[0036]具体实施方式三：本实施方式与具体实施方式一或二之一不同点是：步骤一①中所述的氧化石墨烯的质量与去离子水与无水乙醇的混合溶液的体积比为(10mg～30mg):30mL。其它步骤与具体实施方式一或二相同。

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Abstract

The invention relates to a preparation method of a molybdenum diselenide composite material, in particular to a preparation method of a molybdenum diselenide RGO composite material with an adjustable heterostructure and multiple microwave absorption bands. The invention aims to solve the problems that the existing pure MoSe2 is relatively weak in conductivity, easy to gather in the reaction process and poor in impedance matching, and the development of the pure MoSe2 in the field of electromagnetic wave absorption is hindered. The method comprises: 1, preparing a reaction liquid; and 2, solvothermal reaction. The invention provides the preparation method of the MoSe2 (at) RGO composite material with the adjustable heterostructure and the multiple microwave absorption bands, the prepared MoSe2 (at) RGO composite material realizes effective microwave absorption in three wave bands under the same condition, the maximum reflection loss is-56.9 dB, and the microscopic heterostructure of the material is adjustable. The molybdenum diselenide (at) RGO composite material with an adjustable heterostructure and multiple microwave absorption bands can be obtained.

Description

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Claims

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Application Information

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IPC IPC(8): H01M4/36H01M4/48
CPCH01M4/364H01M4/48
Inventor 李林付晓颖
Owner HARBIN NORMAL UNIVERSITY