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Hydrophilic and hydrophobic pores in reduced graphene oxide aerogel

机译:氧化石墨烯氧化物气凝胶中的亲水和疏水孔

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摘要

Aerogel is obtained from graphene oxide reduced by a mixture of H3PO2 and I-2. The porous structure of an aerogel has been studied at room temperature using the method of standard contact porosimetry. Both water and octane were used as working fluids, which allowed us to study the pore size distributions of hydrophilic and hydrophobic pores separately. It was found that very small pores, with the radius 2.5nm, and very large pores, with the radius more than 100nm, were mostly hydrophobic, while the intermediate pores were hydrophilic.
机译:通过H3PO2和I-2的混合物从石墨烯氧化物中获得气凝胶。使用标准接触孔隙孔的方法在室温下研究了气凝胶的多孔结构。将水和辛烷均用作工作流体,其使我们能够分别研究亲水和疏水孔的孔径分布。发现非常小的毛孔,半径<2.5nm,大于100nm的半径大于100nm,大多是疏水性的,而中间孔是亲水的。

著录项

  • 来源
    《Journal of porous materials》 |2019年第4期|1111-1119|共9页
  • 作者单位

    Russian Acad Sci AN Frumkin Inst Phys Chem & Electrochem Leninsky Pr 31 Moscow 119071 Russia;

    Russian Acad Sci Inst Problems Chem Phys Chernogolovka 142432 Moscow Region Russia;

    Russian Acad Sci Inst Problems Chem Phys Chernogolovka 142432 Moscow Region Russia;

    Russian Acad Sci Inst Problems Chem Phys Chernogolovka 142432 Moscow Region Russia;

    Russian Acad Sci AN Frumkin Inst Phys Chem & Electrochem Leninsky Pr 31 Moscow 119071 Russia;

    Russian Acad Sci AN Frumkin Inst Phys Chem & Electrochem Leninsky Pr 31 Moscow 119071 Russia;

    Russian Acad Sci Inst Problems Chem Phys Chernogolovka 142432 Moscow Region Russia;

    MPM&P Researcn Inc 341 Erin Trail Newmarket ON L3Y 6K2 Canada;

    Inst Politecn Nacl SEPI ESIME Zacatenco Av IPN S-N Ed 5 3-R Piso Mexico City 07738 DF Mexico;

    Russian Acad Sci Inst Problems Chem Phys Chernogolovka 142432 Moscow Region Russia|Natl Univ Sci & Technol MISIS Leninsky Pr 4 Moscow 119049 Russia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Graphene oxide aerogel; Porous carbon; Porous structure; Standard contact porosimetry;

    机译:石墨烯氧化物气凝胶;多孔碳;多孔结构;标准接触孔隙率;

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