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Title: Polyphenylene dendrimer-templated in situ construction of inorganic–organic hybrid rice-shaped architectures
Authors: Qi, Xiaoying
Xue, Can
Huang, Xiao
Huang, Yizhong
Zhou, Xiaozhu
Li, Hai
Liu, Daojun
Müllen, Klaus
De Feyter, Steven
Boey, Freddy Yin Chiang
Yan, Qingyu
Huang, Wei
Zhang, Hua
Keywords: DRNTU::Engineering::Materials
Issue Date: 2010
Source: Qi, X., Xue, C., Huang, X., Huang, Y., Zhou, X., Li, H., et al. (2010). Polyphenylene dendrimer-templated in situ construction of inorganic–organic hybrid rice-shaped architectures. Advanced Functional Materials, 20(1), 43-49.
Series/Report no.: Advanced functional materials
Abstract: A novel dendrimer-templating method for the synthesis of CuO nanoparticles and the in situ construction of ordered inorganic–organic CuO–G2Td(COOH)16rice-shaped architectures (RSAs) with analogous monocrystalline structures are reported. The primary CuO nanoparticles are linked by the G2Td(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(NO3)2 by using NaBH4 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 Cu2+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 Cu2+COO−coordination bonds even with HCl treatment, suggesting that the dendrimers and Cu2+ 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.
ISSN: 1616-3028
DOI: 10.1002/adfm.200900982
Schools: School of Materials Science & Engineering 
Rights: © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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