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One-pot functionalization of graphene with porphyrin through cycloaddition reactions

机译：通过环加成反应的卟啉与卟啉的一锅官能化

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摘要

Two types of graphene-based hybrid materials, graphene-TPP (TPP=tetraphenylporphyrin) and graphene-PdTPP (PdTPP=palladium tetraphenylporphyrin), were prepared directly from pristine graphene through one-pot cycloaddition reactions. The hybrid materials were characterized by thermogravimetric analysis (TGA), by TEM, by UV/Vis, FTIR, Raman, and luminescence spectroscopy, and by fluorescence/phosphorescence lifetime measurements. The presence of the covalent linkages between graphene and porphyrin was confirmed by FTIR and Raman spectroscopy and further supported by control experiments. The presence of TPP (or PdTPP) in the hybrid material was demonstrated by UV/Vis spectroscopy, with TGA results indicating that the graphene-TPP and graphene-PdTPP hybrid materials contained approximately 18% TPP and 20% PdTPP. The quenching of fluorescence (or phosphorescence) and reduced lifetimes suggest excited state energy/electron transfer between graphene and the covalently attached TPP (or PdTPP) molecules.
机译：通过一种盆状石墨烯直接从原始环加成反应直接从原始石墨烯直接制备两种基于石墨烯的杂化材料，石墨烯-TPP（TPP =四苯基卟啉）和石墨烯-PDTPPP（PDTPP =钯四苯基卟啉）。杂交材料的特征在于热重分析（TGA），通过TEM，通过UV / VI，FTIR，拉曼和发光光谱，以及荧光/磷光寿命测量。通过FTIR和拉曼光谱证实石墨烯和卟啉之间的共价键的存在，并通过对照实验进一步支持。通过UV / VI光谱证明了杂化材料中TPP（或PDTPP）的存在，TGA结果表明石墨烯-TPP和石墨烯-PDTPP杂化材料含有约18％TPP和20％PDTPP。荧光（或磷光）的猝灭和减少的寿命表明石墨烯和共价连接的TPP（或PDTPP）分子之间的激发态能/电子传递。

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  • 来源
    《Chemistry: A European journal》 |2011年第32期|共8页
  • 作者

    Zhang X.; Hou L.; Cnossen A.; Coleman A.C.; Ivashenko O.; Rudolf P.; Van Wees B.J.; Browne W.R.; Feringa B.L.;

  • 作者单位

    Stratingh Institute for Chemistry University of Groningen Nijenborgh 4 9747 AG Groningen Netherlands;

    Stratingh Institute for Chemistry University of Groningen Nijenborgh 4 9747 AG Groningen Netherlands;

    Stratingh Institute for Chemistry University of Groningen Nijenborgh 4 9747 AG Groningen Netherlands;

    Physics of Nanodevices Zernike Institute for Advanced Materials University of Groningen Nijenborgh 4 9747 AG Groningen Netherlands;

    Surfaces and Thin Films Zernike Institute for Advanced Materials University of Groningen Nijenborgh 4 9747 AG Groningen Netherlands;

    Surfaces and Thin Films Zernike Institute for Advanced Materials University of Groningen Nijenborgh 4 9747 AG Groningen Netherlands;

    Physics of Nanodevices Zernike Institute for Advanced Materials University of Groningen Nijenborgh 4 9747 AG Groningen Netherlands;

    Stratingh Institute for Chemistry University of Groningen Nijenborgh 4 9747 AG Groningen Netherlands;

    Stratingh Institute for Chemistry University of Groningen Nijenborgh 4 9747 AG Groningen Netherlands;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 应用化学;
  • 关键词

    cycloaddition; graphene; luminescence; porphyrin; Raman spectroscopy;

    机译：环加成;石墨烯;发光;卟啉;拉曼光谱;

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