4.7 Article

Sulfur doped graphene/polystyrene nanocomposites for electromagnetic interference shielding

期刊

COMPOSITE STRUCTURES
卷 133, 期 -, 页码 1267-1275

出版社

ELSEVIER SCI LTD
DOI: 10.1016/j.compstruct.2015.07.036

关键词

Graphene; Sulfur doping; Electromagnetic interference shielding; Permittivity; Conductivity

资金

  1. Graphene Part & Material Development Program
  2. Fundamental R&D Program for Core Technology of Materials
  3. Industrial Strategic Technology Development Program - Ministry of Trade, Industry and Energy, Republic of Korea
  4. Korea Institute of Science and Technology

向作者/读者索取更多资源

In this paper, for the first time, we present a simple and straightforward method to improve not only electrical conductivity and complex permittivity but also electromagnetic interference (EMI) shielding effectiveness of reduced graphene oxide (rGO)/polystyrene (PS) nanocomposites through sulfur doping. Sulfur-doped reduced graphene oxide with thiophene-like structure (2.6 at.% S), synthesized through a simple heating process of a mixture of graphene oxide and sulfur powder, revealed almost three times larger electrical conductivity (1095 S m(-1)) than undoped rGO (395 S m(-1)). The SrGO/PS nanocomposite showed not only 150% larger electrical conductivity and 50% larger complex permittivity, but also improved EMI shielding effectiveness (24.5 dB) at a frequency of 18 GHz than rGO/PS nanocomposite (21.4 dB) at the same loading level of 7.5 vol.%. Considering the simplicity and effectiveness of process, sulfur doping of graphene is expected to be used as a versatile method to improve EMI shielding efficiency of graphene/polymer nanocomposites. (C) 2015 Elsevier Ltd. All rights reserved.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据