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首页> 外文期刊>RSC Advances >Shear-force-dominated dual-drive planetary ball milling for the scalable production of graphene and its electrocatalytic application with Pd nanostructures
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Shear-force-dominated dual-drive planetary ball milling for the scalable production of graphene and its electrocatalytic application with Pd nanostructures

机译：剪切力主导的双驱动行星行星球磨，用于可扩展生产石墨烯及其具有PD纳米结构的电催化应用

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摘要

The exceptional properties of graphene-based derivatives have governed numerous research fields in recent years. The scaled up and reliable production of high-quality graphene is still a challenging task. This work presents an efficient and low-cost approach for the mass production of high-quality graphene (50 g scale batch) through the dual-drive planetary ball milling of graphite with a dicarboxylic acid. The dimensional changes of graphite were determined from the diffraction pattern of the (002) plane at different milling times and the unique signature of graphene noticed in the Raman spectra. Transmission electron microscopy clearly revealed the existence of single and bilayer graphene sheets. Non-destructive exfoliation was evidenced by the surface binding states of the C 1s core level spectra. The as-synthesized graphene was utilized as the catalytic support for formic acid fuel cell applications. Graphene supported palladium nanocomposites were prepared, and the electrocatalytic activity towards formic acid oxidation was explored. The cyclic voltammogram of the graphene-palladium nanocomposite reveals that the onset potential for formic acid oxidation is -0.1 V with a prominent oxidation peak at 0.263 V.
机译：石墨烯的衍生品的特殊性质近年来受到众多研究领域。高质量石墨烯的缩放和可靠性生产仍然是一个具有挑战性的任务。这项工作介绍了通过用二羧酸的石墨的双驱动行星球铣削批量生产高质量石墨烯（50g比分批量）的有效和低成本方法。从不同铣削时间的（002）平面的衍射图谱中，测定石墨的尺寸变化，并在拉曼光谱中注意到石墨烯的独特签名。透射电子显微镜清楚地揭示了单层和双层石墨烯片的存在。 C 1S核心水平光谱的表面结合状态证明了非破坏性剥离。用作甲酸燃料电池应用的催化载体作为催化载体。制备石墨烯负载钯纳米复合材料，探讨了甲酸氧化的电催化活性。石墨烯钯纳米复合材料的循环伏安图显示，甲酸氧化的发作电位为-0.1V，突出氧化峰值为0.263V。

著录项

  • 来源
    《RSC Advances》 |2016年第24期|共7页
  • 作者

    Kumar G. Rajendra; Jayasankar K.; Das Sushanta K.; Dash Tapan; Dash Ajit; Jena Bikash Kumar; Mishra Barada Kanta;

  • 作者单位

    CSIR Inst Minerals &

    Mat Technol Bhubaneswar 751013 Orissa India;

    CSIR Inst Minerals &

    Mat Technol Bhubaneswar 751013 Orissa India;

    CSIR Inst Minerals &

    Mat Technol Bhubaneswar 751013 Orissa India;

    CSIR Inst Minerals &

    Mat Technol Bhubaneswar 751013 Orissa India;

    CSIR Inst Minerals &

    Mat Technol Bhubaneswar 751013 Orissa India;

    CSIR Inst Minerals &

    Mat Technol Bhubaneswar 751013 Orissa India;

    CSIR Inst Minerals &

    Mat Technol Bhubaneswar 751013 Orissa India;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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