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所属单位：材料科学与技术学院

发表刊物：JOURNAL OF MATERIALS CHEMISTRY C

关键字：MICROWAVE-ABSORPTION PROPERTIES ELECTROMAGNETIC-WAVE ABSORPTION METAL-ORGANIC-FRAMEWORKS SENSITIZED SOLAR-CELLS IN-SITU SYNTHESIS FACILE SYNTHESIS EVOLUTION REACTION NICKEL SULFIDE PERFORMANCE GRAPHENE

摘要：Herein, we synthesized metallic Ni through a simple chemical reduction process. Unfortunately, the Ni showed poor microwave absorption performance because of the inferior impedance matching properties. To overcome this, a sulfurization method was employed to obtain a novel microwave absorber-NiS/Ni3S4 composite. The nickel sulfide composites displayed much better microwave absorption abilities than the metallic Ni. The reflection loss (RL) values that exceeded -10 dB were observed in the frequency range 13.8-18.0 GHz (a broad microwave absorption bandwidth of 4.2 GHz) with a thickness of only 1.8 mm. Besides, the minimum RL value was as high as -43.0 dB at 9.1 GHz with the thickness of 2.4 mm. On the basis of high dielectric loss, good impedance matching properties, as well as stronger interfacial polarization effect, it can be concluded that NiS/Ni3S4 composites possess strong-absorption properties and have great potential for application as light microwave absorbers.

ISSN号：2050-7526

是否译文：否

发表时间：2018-02-21

合写作者：吕婧,成岩,刘伟,刘伟,权斌,梁小会,都有为

通讯作者：姬广斌