journal article·2019-08-21

Self-Assembly Three-Dimensional Porous Carbon Networks for Efficient Dielectric Attenuation

Xiaohui Liang, Bin Quan, Zengming Man, Bingchen Cao, Nan Li, Chenhao Wang, Guangbin Ji, Ting Yu

ACS Applied Materials & Interfaces· Volume 11· Issue 33
Publisher page

Abstract

Zeolitic imidazolate framework (ZIF-8)-derived ZnO/nanoporous carbon (NPC) aligned in a three-dimensional porous carbon network (3DPCN) is designed to form a multiporous network nanostructure to absorb electromagnetic waves. The porous 3DPCN structure acts as the electronic pathway and the nucleation locus for ZIF-8 particles. Meanwhile, the conductive networks could also provide more routes for electron transfer. With good impedance matching and attenuation characteristics, ZnO@NPC/3DPCN shows enhanced microwave response where the minimum reflection loss of -35.7 dB can be achieved with a 10 wt % filler. Our study not only exploits the new system of lightweight absorbers but also further reveals the changing of electromagnetic parameters and absorbing properties by heat treatment, which may lead to a new way to design novel lighter multiporous network nanostructures.
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Research context

OpenAlex topics: Electromagnetic wave absorption materials · Advanced Antenna and Metasurface Technologies · Metamaterials and Metasurfaces Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, No. 29 Yudao Street, Nanjing 210016, P. R. China

Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371, Singapore

Shaanxi Institute of Flexible Electronics (SIFE), Northwestern Polytechnical University (NPU), Xi’an 710129, China

State Key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene (NPU), Xi’an 710072, China

Funding

Government of Jiangsu Province · Aeronautical Science Foundation of China · China Scholarship Council · National Natural Science Foundation of China · Jiangsu Provincial Key Laboratory of Bionic Functional Materials, Nanjing University · Jiangsu Provincial Key Laboratory for Nanotechnology, Nanjing University · Priority Academic Program Development of Jiangsu Higher Education Institutions

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