Journal of Inorganic Materials ›› 2016, Vol. 31 ›› Issue (6): 567-574.DOI: 10.15541/jim20150534

• Orginal Article • Previous Articles     Next Articles

Preparation and Electromagnetic Absorption Performance of Ni-RGO

XU Shuang-Shuang, CHEN Gong, ZHANG Hai-Qin, CHEN Yuan, ZHAO Yan   

  1. (Material Science and Engineering Department, Beihang University, Beijing 100191, China)
  • Received:2015-10-30 Revised:2015-12-16 Published:2016-06-20 Online:2016-05-19
  • About author:XU Shuang-Shuang. E-mail: qyuanss@126.com
  • Supported by:
    Beijing Municipal Science & Technology Commission of China (D141100002414001);Aeronautical Science Foundation of China (2013ZF51073)

Abstract:

Electroless plating was utilized to deposit nickel nanoparticles on the reduced graphene oxide (RGO). By adjusting the nickel salt precursor concentration, three kinds of Ni-RGO with different nickel contents were synthesized, namely Ni-RGO-1, Ni-RGO-2 and Ni-RGO-5. Transmission electron microscopy and X-ray diffraction were employed to study the surface morphology and crystal structure of as-prepared Ni-RGO. The electromagnetic performance of graphene oxide and Ni-RGO was characterized. The results indicated that the permittivity of Ni-RGO was above 8, almost three times higher than that of pristine graphene oxide. Ni-RGO-1 exhibited the best electromagnetic wave absorption performance, although the concentration of nickel precursor is the lowest one among three samples. The minimal reflection loss was up to -24.5 dB for Ni-RGO-1 with a thickness of 2 mm.

Key words: graphene, nano nickel, wave absorption, resonance, debye relaxation

CLC Number: