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      Biomass-Derived Porous Carbon-Based Nanostructures for Microwave Absorption

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          Highlights

          • The synthetic methods and corresponding mechanisms of porous carbon (PC)-based nanostructures from biomass resource are reviewed.

          • The application of biomass-derived PC in microwave absorption is discussed in terms of structure and composition optimization.

          Abstract

          Currently, electromagnetic (EM) pollution poses severe complication toward the operation of electronic devices and biological systems. To this end, it is pertinent to develop novel microwave absorbers through compositional and structural design. Porous carbon (PC) materials demonstrate great potential in EM wave absorption due to their ultralow density, large surface area, and excellent dielectric loss ability. However, the large-scale production of PC materials through low-cost and simple synthetic route is a challenge. Deriving PC materials through biomass sources is a sustainable, ubiquitous, and low-cost method, which comes with many desired features, such as hierarchical texture, periodic pattern, and some unique nanoarchitecture. Using the bio-inspired microstructure to manufacture PC materials in mild condition is desirable. In this review, we summarize the EM wave absorption application of biomass-derived PC materials from optimizing structure and designing composition. The corresponding synthetic mechanisms and development prospects are discussed as well. The perspective in this field is given at the end of the article.

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          CoNi@SiO2 @TiO2 and CoNi@Air@TiO2 Microspheres with Strong Wideband Microwave Absorption.

          The synthesis of CoNi@SiO2 @TiO2 core-shell and CoNi@Air@TiO2 yolk-shell microspheres is reported for the first time. Owing to the magnetic-dielectric synergistic effect, the obtained CoNi@SiO2 @TiO2 microspheres exhibit outstanding microwave absorption performance with a maximum reflection loss of -58.2 dB and wide bandwidth of 8.1 GHz (8.0-16.1 GHz, < -10 dB).
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            Broadband and tunable high-performance microwave absorption of an ultralight and highly compressible graphene foam.

            The broadband and tunable high-performance microwave absorption properties of an ultralight and highly compressible graphene foam (GF) are investigated. Simply via physical compression, the microwave absorption performance can be tuned. The qualified bandwidth coverage of 93.8% (60.5 GHz/64.5 GHz) is achieved for the GF under 90% compressive strain (1.0 mm thickness). This mainly because of the 3D conductive network.
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              KOH activation of carbon-based materials for energy storage

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                Author and article information

                Contributors
                bszhang@njul.edu.cn
                gbji@nuaa.edu.cn
                xuzc@ntu.edu.sg
                Journal
                Nanomicro Lett
                Nanomicro Lett
                Nano-Micro Letters
                Springer Singapore (Singapore )
                2311-6706
                2150-5551
                15 March 2019
                15 March 2019
                December 2019
                : 11
                : 24
                Affiliations
                [1 ]ISNI 0000 0000 9558 9911, GRID grid.64938.30, College of Materials Science and Technology, , Nanjing University of Aeronautics and Astronautics, ; Nanjing, 210016 People’s Republic of China
                [2 ]ISNI 0000 0001 2314 964X, GRID grid.41156.37, School of Electronic Science and Engineering, , Nanjing University, ; Nanjing, 210093 People’s Republic of China
                [3 ]ISNI 0000 0001 2224 0361, GRID grid.59025.3b, School of Materials Sciences and Engineering, , Nanyang Technological University, ; 50 Nanyang Avenue, Singapore, 639798 Singapore
                [4 ]ISNI 0000 0004 0468 4884, GRID grid.454851.9, Singapore-HUJ Alliance for Research and Enterprise, NEW-CREATE Phase II, , Campus for Research Excellence and Technological Enterprise (CREATE), ; Singapore, 138602 Singapore
                Article
                255
                10.1007/s40820-019-0255-3
                7770762
                04484bb6-050f-4d6d-ac68-19850e0bb999
                © The Author(s) 2019

                Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License ( http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

                History
                : 12 January 2019
                : 28 February 2019
                Categories
                Review
                Custom metadata
                © The Author(s) 2019

                biomass resource,porous carbon,microwave absorption
                biomass resource, porous carbon, microwave absorption

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