Structure evolution and microwave absorption properties of nickel nanoparticles incorporated carbon spheres. (December 2016)

• Record Type: Journal Article
• Authors: Su, Zhibin; Tao, Jin; Xiang, Jianyong; Zhang, Yu; Su, Can; Wen, Fusheng
• Is Part Of: Materials research bulletin. Volume 84(2016)
• Page Start: 445
• Page End: 448
• Publication Date: 2016-12
• Subjects: A. Nanostructures -- B. Chemical synthesis -- C. Electron microscopy -- C. X-ray diffraction -- D. Dielectric properties; Materials -- Periodicals; Crystal growth -- Periodicals; Matériaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Crystal growth; Materials; Periodicals; 620.11
• DOI: 10.1016/j.materresbull.2016.08.036
• Languages: English
• ISSNs: 0025-5408

Abstract

Graphical abstract: Highlights: Carbon spheres were prepared. Nickel nanoparticles were incorporated onto carbon spheres. The minimum reflection loss value was −20.3 dB at 14.4 GHz with a matching thickness of 9.0 mm for 40 wt.% composites. Abstract: Carbon spheres were obtained by hydrothermal synthesis using glucose as carbon source, and then nickel nanoparticles were incorporated on carbon spheres by reducing with hydrogen. The nickel nanoparticles (about 6 nm) with magnetic loss were uniformly dispersed on the surface of carbon spheres (200–400 nm) with dielectric loss. The few-layer graphene have been obtained on the carbon spheres by nickel catalysis. The minimum reflection loss value of −20.3 dB was observed at 14.4 GHz with a matching thickness of 9.0 mm for 40 wt.% composites. The nickel nanoparticles incorporated carbon spheres are a promising candidate for excellent microwave absorption materials.