镍芯与空心碳洋葱EMWA性能的比较

IF 2.4 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Journal of Molecular and Engineering Materials Pub Date : 2022-02-11 DOI:10.1142/s2251237322500010

Zhigang Li, Dou Zhang, Lei Zhang, C. Ruan, Qin Zhou, Y. Lian

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引用次数: 0

摘要

碳洋葱(CNOs)由于其具有洋葱状结构、低密度和优异的导电性，在电磁波吸收(EMWA)领域具有很高的应用价值。本文采用电弧放电法制备镍包覆的CNOs，然后在900°C下退火成空心的CNOs。详细分析了空心和镍包覆CNOs的结构和EMWA性能，探讨了其EMWA性能与结构的关系。镍包覆的CNOs具有更好的EMWA性能，这表明核壳界面比洋葱状结构对EMMA的贡献更大。

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Comparison of the EMWA Performance of Nickel Cored and Hollow Carbon Onions

Carbon onions (CNOs) are highly desirable in the field of electromagnetic wave absorption (EMWA) due to their onion-like structure, low density and excellent conductivity. Herein nickel encapsulated CNOs were fabricated by arc discharge and then transformed into hollow ones via annealing at 900∘C. The structure and EMWA performance of the hollow and nickel encapsulated CNOs were analyzed in detail to investigate the relationship of their EMWA properties and structure. The better EMWA properties of nickel encapsulated CNOs showed that the core–shell interface contributed more EMMA in comparison to the onion-like configuration.

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Journal of Molecular and Engineering Materials MATERIALS SCIENCE, MULTIDISCIPLINARY-

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