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Polyphenylene dendrimer-templated in situ construction of inorganic–organic hybrid rice-shaped architectures

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Polyphenylene dendrimer-templated in situ construction of inorganic–organic hybrid rice-shaped architectures
นักวิจัย : Qi, Xiaoying , Xue, Can , Huang, Xiao , Huang, Yizhong , Zhou, Xiaozhu , Li, Hai , Liu, Daojun , Boey, Freddy Yin Chiang , Yan, Qingyu , Huang, Wei , De Feyter, Steven , Müllen, Klaus , Zhang, Hua
คำค้น : DRNTU::Engineering::Materials.
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2553
อ้างอิง : 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. , 1616-3028 , http://hdl.handle.net/10220/8585 , http://dx.doi.org/10.1002/adfm.200900982
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Advanced functional materials
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

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.

บรรณานุกรม :
Qi, Xiaoying , Xue, Can , Huang, Xiao , Huang, Yizhong , Zhou, Xiaozhu , Li, Hai , Liu, Daojun , Boey, Freddy Yin Chiang , Yan, Qingyu , Huang, Wei , De Feyter, Steven , Müllen, Klaus , Zhang, Hua . (2553). Polyphenylene dendrimer-templated in situ construction of inorganic–organic hybrid rice-shaped architectures.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Qi, Xiaoying , Xue, Can , Huang, Xiao , Huang, Yizhong , Zhou, Xiaozhu , Li, Hai , Liu, Daojun , Boey, Freddy Yin Chiang , Yan, Qingyu , Huang, Wei , De Feyter, Steven , Müllen, Klaus , Zhang, Hua . 2553. "Polyphenylene dendrimer-templated in situ construction of inorganic–organic hybrid rice-shaped architectures".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Qi, Xiaoying , Xue, Can , Huang, Xiao , Huang, Yizhong , Zhou, Xiaozhu , Li, Hai , Liu, Daojun , Boey, Freddy Yin Chiang , Yan, Qingyu , Huang, Wei , De Feyter, Steven , Müllen, Klaus , Zhang, Hua . "Polyphenylene dendrimer-templated in situ construction of inorganic–organic hybrid rice-shaped architectures."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2553. Print.
Qi, Xiaoying , Xue, Can , Huang, Xiao , Huang, Yizhong , Zhou, Xiaozhu , Li, Hai , Liu, Daojun , Boey, Freddy Yin Chiang , Yan, Qingyu , Huang, Wei , De Feyter, Steven , Müllen, Klaus , Zhang, Hua . Polyphenylene dendrimer-templated in situ construction of inorganic–organic hybrid rice-shaped architectures. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2553.