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首页> 外文期刊>Advanced Functional Materials >Polyphenylene Dendrimer-Tern plated In Situ Construction of Inorganic-Organic Hybrid Rice-Shaped Architectures
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Polyphenylene Dendrimer-Tern plated In Situ Construction of Inorganic-Organic Hybrid Rice-Shaped Architectures

机译：聚亚苯基树枝状大分子镀原位构建无机-有机杂交水稻形构筑物

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摘要

A novel dendrimer-templating method for the synthesis of CuO nanoparticles and the in situ construction of ordered inorganic-organic CuO-G2Td(COOH)_(16) rice-shaped architectures (RSAs) with analogous monocrystalline structures are reported. The primary CuO nanoparticles are linked by the C2Td(COOH)_(16) dendrimer. This method provides a way to preserve the original properties of primary CuO nanoparticles in the ordered hybrid nanomaterials by using the 3D rigid polyphenylene dendrimer (G2Td(COOH)_(16)) as a space isolation. The primary CuO nanoparticles with diameter of (6.3 ± 0.4) nm are synthesized via four successive reaction steps starting from the rapid reduction of Cu(NO_3)_2 by using NaBH_4 as reducer and G2Td(COOH)_(16) as surfactant. The obtained hybrid CuO-G2Td(COOH)_(16) RSA, formed in the last reaction step, possesses a crystal structure analogous to a monocrystal as observed by transmission electron microscopy(TEM). In particular, the formation process of the RSA is monitored by UV-vis, TEM, and X-ray diffraction. Small angle X-ray scattering and Fourier transform infrared spectroscopy are used to investigate the role of the dendrimer in the RSA formation process. The obtained results illuminate that Cu~(2+)-COO~- coordination bonds play an indispensable role in bridging and dispersing the primary CuO nanoparticles to induce and maintain the hybrid RSA. More importantly, the RSA is retained through the Cu~(2+)-COO~-coordination bonds even with HCl treatment, suggesting that the dendrimers and Cu~(2+) ions may form rice-shaped polymeric complexes which could template the assembly of CuO nanoparticles towards RSAs. This study highlights the feasibility and flexibility of employing the peculiar dendrimers to in-situ build up hybrid architectures which could further serve as templates, containers or nanoreactors for the synthesis of other nanomaterials.
机译：报道了一种新颖的树状聚合物模板法，用于合成CuO纳米颗粒和原位构建具有相似单晶结构的有序无机有机CuO-G2Td（COOH）_（16）稻米状结构（RSA）。初级CuO纳米粒子通过C2Td（COOH）_（16）树枝状聚合物连接。该方法提供了一种通过使用3D刚性聚亚苯基树枝状大分子（G2Td（COOH）_（16））作为空间隔离物来保留有序杂化纳米材料中原始CuO纳米粒子原始属性的方法。通过使用NaBH_4作为还原剂和G2Td（COOH）_（16）作为表面活性剂快速还原Cu（NO_3）_2，通过四个连续的反应步骤合成了直径为（6.3±0.4）nm的原生CuO纳米颗粒。在最后的反应步骤中形成的所得杂化CuO-G2Td（COOH）_（16）RSA具有类似于单晶的晶体结构，如通过透射电子显微镜（TEM）观察到的。尤其是，RSA的形成过程通过UV-vis，TEM和X射线衍射进行监控。小角度X射线散射和傅立叶变换红外光谱用于研究树状聚合物在RSA形成过程中的作用。所得结果表明，Cu〜（2 +）-COO〜-配位键在桥连和分散初级CuO纳米颗粒中诱导和维持杂化RSA起着不可或缺的作用。更重要的是，即使经过HCl处理，RSA仍通过Cu〜（2 +）-COO〜-配位键保留，这表明树状聚合物和Cu〜（2+）离子可能形成水稻状聚合物复合物，从而可以形成组装模板CuO纳米粒子对RSAs的影响。这项研究强调了采用特殊的树枝状聚合物原位构建杂合结构的可行性和灵活性，杂化结构可进一步用作合成其他纳米材料的模板，容器或纳米反应器。

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  • 来源
    《Advanced Functional Materials》 |2010年第1期|43-49|共7页
  • 作者

    Xiaoying Qi; Can Xue; Xiao Huang; Yizhong Huang; Xiaozhu Zhou; Hal Li; Daojun Liu; Freddy Boey; Qingyu Yan; Wei Huang; Steven De Feyter; Klaus Muellen; Hua Zhang;

  • 作者单位

    School of Materials Science and Engineering, Nanyang Technological University 50 Nanyang Avenue, Singapore 639798 (Singapore);

    rnSchool of Materials Science and Engineering, Nanyang Technological University 50 Nanyang Avenue, Singapore 639798 (Singapore);

    rnSchool of Materials Science and Engineering, Nanyang Technological University 50 Nanyang Avenue, Singapore 639798 (Singapore);

    rnSchool of Materials Science and Engineering, Nanyang Technological University 50 Nanyang Avenue, Singapore 639798 (Singapore);

    rnSchool of Materials Science and Engineering, Nanyang Technological University 50 Nanyang Avenue, Singapore 639798 (Singapore);

    rnSchool of Materials Science and Engineering, Nanyang Technological University 50 Nanyang Avenue, Singapore 639798 (Singapore);

    rnDepartment of Chemistry, Medical College, Shantou University Shantou 515041 (P. R. China);

    rnSchool of Materials Science and Engineering, Nanyang Technological University 50 Nanyang Avenue, Singapore 639798 (Singapore);

    rnSchool of Materials Science and Engineering, Nanyang Technological University 50 Nanyang Avenue, Singapore 639798 (Singapore);

    rnJiangsu Key Laboratory for Organic Electronics & Information Displays Institute of Advanced Materials Nanjing University of Posts and Telecommunications 9 Wenyuan Road, Nanjing 210046 (P. R. China);

    rnDivision of Molecular and Nanomaterials, Department of Chemistry and INPAC Institute of Nanoscale Physics and Chemistry, Katholieke Universiteit Leuven (KULeuven) Celestijnenlaan 200F, 3001 Heverlee (Belgium);

    rnMax-Planck-Institut fuer Polymerforschung Ackermannweg 10, 55128 Mainz (Germany);

    rnSchool of Materials Science and Engineering, Nanyang Technological University 50 Nanyang Avenue, Singapore 639798 (Singapore);

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