...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>IEEE Transactions on Magnetics >Introduction of Na⁺ in Reduced Graphene Oxide Prepared From Coconut Shells and Its Magnetic Properties
【24h】

Introduction of Na⁺ in Reduced Graphene Oxide Prepared From Coconut Shells and Its Magnetic Properties

机译：在椰子壳制备的石墨烯氧化物中的纳米引入及其磁性

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this article, we report for the first time that the intercalation of sodium (Na) ions into reduced graphene oxide (rGO) sheets can significantly improve its magnetic properties. The intercalation of sodium ions is marked by an increase in the distance between the rGO layers confirmed by X-ray diffraction (XRD) measurements. Unlike pure graphite, the distance between the rGO layers is larger so that it allows sodium ions to stick and intercalate between the rGO sheets. We investigate structure, room-temperature magnetization, and electrical conductivity of Na-intercalated rGO with the variations of rGO:Na mole ratio of 1:0 (rGO), 2:1 (GNa21), 1:1 (GNa11), and 1:2 (GNa12). The sample with the highest Na mole ratio in the series, GNa12, has the highest concentration of defects compared with other samples. GNa12 also has the highest room-temperature magnetization and electrical conductivity. Saturation magnetization (M-S) of the samples increases in the same order as the electrical conductivity with increasing Na mole ratio. Our results show that magnetism in Na-intercalated rGO can be explained by a Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction, in which the interaction between the magnetic impurities in rGO is mediated by conduction electrons from the rGO host.
机译：在本文中，我们首次报告了钠（Na）离子将钠（Na）离子嵌入到还原氧氧化物（Rgo）片材中可以显着改善其磁性。钠离子的插层标记为通过X射线衍射（XRD）测量的RGO层之间的距离增加。与纯石墨不同，RGO层之间的距离更大，使其允许钠离子粘在RGO板之间。我们调查Na-intercalated RGO的结构，室温磁化和导电性，RGO：Na摩尔比为1：0（RGO），2：1（GNA21），1：1（GNA11）和1 ：2（GNA12）。与其他样品相比，具有最高Na摩尔比的样品GNA12具有最高的缺陷浓度。 GNA12还具有最高的室温磁化和导电性。样品的饱和磁化强度（M-S）与随着Na MORE比的增加，以与导电率相同的顺序增加。我们的结果表明，Na-intercalated Rgo中的磁力可以通过Ruderman-Kittel-Kasuya-yosida（Rkky）相互作用来解释，其中Rgo中磁杂质之间的相互作用是通过来自RGO主体的传导电子介导的。

著录项

  • 来源
    《IEEE Transactions on Magnetics》 |2020年第7期|1-6|共6页
  • 作者

    Ristiani Deril; Asih Retno; Puspitasari Niken Sylvia; Baqiya Malik Anjelh; Risdiana; Kato Masatsune; Koike Yoji; Yamaguchi Shuhei; Furukawa Yukio; Darminto;

  • 作者单位

    Inst Teknol Sepuluh Nopember Fac Sci & Data Analyt Dept Phys Surabaya 60111 Indonesia;

    Inst Teknol Sepuluh Nopember Fac Sci & Data Analyt Dept Phys Surabaya 60111 Indonesia|RIKEN Meson Sci Lab Nishina Ctr Wako Saitama 3510198 Japan;

    Inst Teknol Sepuluh Nopember Fac Sci & Data Analyt Dept Phys Surabaya 60111 Indonesia;

    Inst Teknol Sepuluh Nopember Fac Sci & Data Analyt Dept Phys Surabaya 60111 Indonesia;

    Univ Padjadjaran Fac Math & Nat Sci Dept Phys Sumedang 45363 Indonesia;

    Tohoku Univ Grad Sch Engn Dept Appl Phys Sendai Miyagi 9808579 Japan;

    Tohoku Univ Grad Sch Engn Dept Appl Phys Sendai Miyagi 9808579 Japan;

    Waseda Univ Sch Adv Sci & Engn Dept Chem & Biochem Tokyo 1698555 Japan;

    Waseda Univ Sch Adv Sci & Engn Dept Chem & Biochem Tokyo 1698555 Japan;

    Inst Teknol Sepuluh Nopember Fac Sci & Data Analyt Dept Phys Surabaya 60111 Indonesia|Inst Teknol Sepuluh Nopember Ctr Excellence Automot Control & Syst Surabaya 60111 Indonesia;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Coconut shell; magnetic; reduced graphene oxide (rGO); sodium doped;

    机译：椰壳;磁性;氧化石墨烯（RGO）;掺杂钠;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号