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Hydroxylated graphene-based flexible carbon film with ultrahigh electrical and thermal conductivity

机译：基于羟基化的石墨烯基柔性碳膜，具有超高电和导热率

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摘要

Graphene-based films are widely used in the electronics industry. Here, surface hydroxylated graphene sheets (HGS) have been synthesized from natural graphite (NG) by a rapid and efficient molten hydroxide-assisted exfoliation technique. This method enables preparation of aqueous dispersible graphene sheets with a high dispersed concentration (similar to 10.0 mg ml(-1)) and an extraordinary production yield (similar to 100%). The HGS dispersion was processed into graphene flexible film (HGCF) through fast filtration, annealing treatment and mechanical compression. The HGS endows graphene flexible film with a high electrical conductivity of 11.5. x. 10(4)Sm(-1) and a superior thermal conductivity of 1842W m(-1) K-1. Simultaneously, the superflexible HGCF could endure 3000 repeated cycles of bending or folding. As a result, this graphene flexible film is expected to be integrated into electronic packaging and high-power electronics applications.
机译：基于石墨烯的薄膜广泛用于电子行业。 这里，通过快速高效的熔融的氢氧化辅助剥离技术从天然石墨（Ng）合成表面羟基化石墨烯片（Hgs）。 该方法使得能够制备具有高分散浓度的水性分散石墨烯片（类似于10.0mg ml（-1））和非凡的产率（类似于100％）。 通过快速过滤，退火处理和机械压缩将HGS分散体加工成石墨烯柔性膜（HGCF）。 Hgs赋予石墨烯柔性薄膜，具有11.5的电导率高。 X。 10（4）SM（-1）和1842WM（-1）K-1的卓越导热率。 同时，超细的HGCF可以忍受3000个重复的弯曲或折叠循环。 结果，预计该石墨烯柔性薄膜将集成到电子包装和高功率电子应用中。

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  • 来源
    《Nanotechnology》 |2017年第39期|共9页
  • 作者

    Ding Jiheng; Rahman Obaid ur; Zhao Hongran; Peng Wanjun; Dou Huimin; Chen Hao; Yu Haibin;

  • 作者单位

    Chinese Acad Sci Ningbo Inst Mat Technol &

    Engn Key Lab Marine Mat &

    Protect Technol Zhejiang Pro Key Lab Marine Mat &

    Related Technol Ningbo 315201 Zhejiang Peoples R China;

    Chinese Acad Sci Ningbo Inst Mat Technol &

    Engn Key Lab Marine Mat &

    Protect Technol Zhejiang Pro Key Lab Marine Mat &

    Related Technol Ningbo 315201 Zhejiang Peoples R China;

    Chinese Acad Sci Ningbo Inst Mat Technol &

    Engn Key Lab Marine Mat &

    Protect Technol Zhejiang Pro Key Lab Marine Mat &

    Related Technol Ningbo 315201 Zhejiang Peoples R China;

    Chinese Acad Sci Ningbo Inst Mat Technol &

    Engn Key Lab Marine Mat &

    Protect Technol Zhejiang Pro Key Lab Marine Mat &

    Related Technol Ningbo 315201 Zhejiang Peoples R China;

    Chinese Acad Sci Ningbo Inst Mat Technol &

    Engn Key Lab Marine Mat &

    Protect Technol Zhejiang Pro Key Lab Marine Mat &

    Related Technol Ningbo 315201 Zhejiang Peoples R China;

    Chinese Acad Sci Ningbo Inst Mat Technol &

    Engn Key Lab Marine Mat &

    Protect Technol Zhejiang Pro Key Lab Marine Mat &

    Related Technol Ningbo 315201 Zhejiang Peoples R China;

    Chinese Acad Sci Ningbo Inst Mat Technol &

    Engn Key Lab Marine Mat &

    Protect Technol Zhejiang Pro Key Lab Marine Mat &

    Related Technol Ningbo 315201 Zhejiang Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 特种结构材料;
  • 关键词

    graphene; exfoliation; molten hydroxides; electrical and thermal conductivities; flexible carbon film;

    机译：石墨烯;去角质;熔融氢氧化物;电和热导体;柔性碳膜;

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