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Environmentally Friendly and Multifunctional Shaddock Peel-Based Carbon Aerogel for Thermal-Insulation and Microwave Absorption

Nano-micro letters, 2021-04, Vol.13 (1), p.102-102, Article 102 [Peer Reviewed Journal]

The Author(s) 2021 ;The Author(s) 2021. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;ISSN: 2311-6706 ;EISSN: 2150-5551 ;DOI: 10.1007/s40820-021-00635-1 ;PMID: 34138342

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Title:
Environmentally Friendly and Multifunctional Shaddock Peel-Based Carbon Aerogel for Thermal-Insulation and Microwave Absorption
Author: Gu, Weihua ; Sheng, Jiaqi ; Huang, Qianqian ; Wang, Gehuan ; Chen, Jiabin ; Ji, Guangbin
Subjects: Aerogels ; Bandwidth ; Carbon ; Carbon aerogel ; Compressive properties ; Computer architecture ; Computer simulation ; Electromagnetic radiation ; Engineering ; Far fields ; Freeze drying ; Infrared imagery ; Microwave absorbers ; Microwave absorption ; Microwave absorption and EMI shielding ; Multi-function ; Nanoscale Science and Technology ; Nanotechnology ; Nanotechnology and Microengineering ; Radar cross sections ; Radar cross-sectional simulation ; Raw materials ; Reduction ; Simulation ; Stealth technology ; Superhigh frequencies ; Surface chemistry ; Thermal insulation ; Thermal resistance
Is Part Of: Nano-micro letters, 2021-04, Vol.13 (1), p.102-102, Article 102
Description: Highlights The eco-friendly shaddock peel-derived carbon aerogels were prepared by a freeze-drying method. Multiple functions such as thermal insulation, compression resistance and microwave absorption can be integrated into one material-carbon aerogel. Novel computer simulation technology strategy was selected to simulate significant radar cross-sectional reduction values under real far field condition. . Eco-friendly electromagnetic wave absorbing materials with excellent thermal infrared stealth property, heat-insulating ability and compression resistance are highly attractive in practical applications. Meeting the aforesaid requirements simultaneously is a formidable challenge. Herein, ultra-light carbon aerogels were fabricated via fresh shaddock peel by facile freeze-drying method and calcination process, forming porous network architecture. With the heating platform temperature of 70 °C, the upper surface temperatures of the as-prepared carbon aerogel present a slow upward trend. The color of the sample surface in thermal infrared images is similar to that of the surroundings. With the maximum compressive stress of 2.435 kPa, the carbon aerogels can provide favorable endurance. The shaddock peel-based carbon aerogels possess the minimum reflection loss value ( RL min ) of − 29.50 dB in X band. Meanwhile, the effective absorption bandwidth covers 5.80 GHz at a relatively thin thickness of only 1.7 mm. With the detection theta of 0°, the maximum radar cross-sectional (RCS) reduction values of 16.28 dB m 2 can be achieved. Theoretical simulations of RCS have aroused extensive interest owing to their ingenious design and time-saving feature. This work paves the way for preparing multi-functional microwave absorbers derived from biomass raw materials under the guidance of RCS simulations.
Publisher: Singapore: Springer Nature Singapore
Language: English
Identifier: ISSN: 2311-6706
EISSN: 2150-5551
DOI: 10.1007/s40820-021-00635-1
PMID: 34138342
Source: GFMER Free Medical Journals
PubMed Central
Springer Nature OA/Free Journals
ROAD: Directory of Open Access Scholarly Resources
ProQuest Central
DOAJ Directory of Open Access Journals

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Environmentally Friendly and Multifunctional Shaddock Peel-Based Carbon Aerogel for Thermal-Insulation and Microwave Absorption

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