Preparation of Cavity Graphene by Salt Template Method and Its Microwave Absorption Properties

被引:0
|
作者
Zhang Q. [1 ]
Zhou C. [2 ]
Zhang H. [2 ]
Zhao R. [3 ]
机构
[1] Sinopec Oilfield Service Corporation, Beijing
[2] Drilling Engineering Research Institute of Sinopec Southwest Petroleum Engineering Corporation, Deyang
[3] School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu
关键词
electromagnetic wave absorbing materials; graphene; phthalocyanine; salt template method;
D O I
10.12178/1001-0548.2022389
中图分类号
学科分类号
摘要
Graphene-based electromagnetic wave absorbing materials have received great attention. In this paper, cavity cubic few-layer graphene was synthesized by solid-phase pyrolysis using sodium chloride as the template and phthalocyanine as the carbon source. In the preparation process, the sodium chloride cubic template was prepared by the antisolvent method and the homogeneous mixing of carbon source and template was achieved simultaneously. The experimental results show that the products obtained by pyrolysis at 700 °C can achieve an effective absorption bandwidth of 6.7 GHz with a filler loading of only 4 wt% and a coating matching thickness of 2.5 mm. © 2024 Univ. of Electronic Science and Technology of China. All rights reserved.
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页码:14 / 20
页数:6
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共 18 条
  • [1] LI M H, ZHU W J, LI X, Et al., Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>/MoS<sub>2</sub> self-rolling rod-based foam boosts interfacial polarization for electromagnetic wave absorption, Advanced Science, 9, (2022)
  • [2] ZHANG S, CHENG B, JIA Z, Et al., The art of framework construction: Hollow-structured materials toward high-efficiency electromagnetic wave absorption, Advanced Composites and Hybrid Materials, 5, pp. 1658-1698, (2022)
  • [3] DENG L J, ZHOU P H., High frequency magnetic structure and magnetic bounds relation, Journal of University of Electronic Science and Technology of China, 38, 5, pp. 531-536, (2009)
  • [4] KUMAR R, SAHOO S, JOANNI E, Et al., Recent progress on carbon-based composite materials for microwave electromagnetic interference shielding, Carbon, 177, pp. 304-331, (2021)
  • [5] SONG Q, YE F, KONG L, Et al., Graphene and MXene nanomaterials: Toward high-performance electromagnetic wave absorption in gigahertz band range, Advanced Functional Materials, 30, 31, (2020)
  • [6] WANG Y Q, TAO L, XIAO Z H, Et al., 3D carbon electrocatalysts in situ constructed by defect-rich nanosheets and polyhedrons from NaCl-sealed zeolitic imidazolate frameworks, Advanced Functional Materials, 28, 11, (2018)
  • [7] ZHANG C, LI X A, SHI Y N, Et al., Structure engineering of graphene nanocages toward high-performance microwave absorption applications, Advanced Optical Materials, 10, 2, (2021)
  • [8] ZHANG X, WANG X Q, MENG F B, Et al., Broadband and strong electromagnetic wave absorption of epoxy composites filled with ultralow content of non-covalently modified reduced graphene oxides, Carbon, 154, pp. 115-124, (2019)
  • [9] WANG C, HAN X J, XU P, Et al., The electromagnetic property of chemically reduced graphene oxide and its application as microwave absorbing material, Applied Physics Letters, 98, 7, (2011)
  • [10] LIU P B, ZHANG Y Q, YAN J, Et al., Synthesis of lightweight N-doped graphene foams with open reticular structure for high-efficiency electromagnetic wave absorption, Chemical Engineering Journal, 368, pp. 285-298, (2019)