Department of Chemistry and Protein Research Center for Bio-Industry, Hankuk University of Foreign Studies, Yongin 449-791, Republic of Korea.
Department of Chemistry and Protein Research Center for Bio-Industry, Hankuk University of Foreign Studies, Yongin 449-791, Republic of Korea.
J Colloid Interface Sci. 2015 Oct 15;456:93-9. doi: 10.1016/j.jcis.2015.06.019. Epub 2015 Jun 18.
A very simple preparation was developed for catalytically active Pd-nanoparticles (Pd-NPs) decorating polythiophene conducting polymer nanospheres by the redox reaction between PdCl4(2-) ion and 2-thiophenemethanol (2-TPM) in an aqueous solution at room temperature. 2-TPM polymerized to form polythiophene nanospheres in the presence of PdCl4(2-) ions, reduced to Pd-NPs without the need for extra reducing agents or organic surface capping ligands for sub-20 nm Pd-NPs that uniformly cover polythiophene nanospheres whose dimensions range from 120 nm to 200 nm. The Pd-NP/polythiophene nanospheres were characterized by scanning transmission electron microscopy (STEM), transmission electron microscopy (TEM), and scanning electron microscopy (SEM), powder X-ray diffraction (PXRD), X-ray photoelectron spectroscopy (XPS), and inductively-coupled plasma atomic emission spectroscopy (ICP-AES). The Pd-NP/polythiophene nanospheres were found to be an excellent catalyst for Suzuki-Miyaura cross-coupling reaction for a wide range of substrates under mild aerobic reaction conditions.
通过在室温下 PdCl4(2-)离子与 2-噻吩甲醇（2-TPM）在水溶液中的氧化还原反应，开发了一种非常简单的方法来制备催化活性的 Pd-纳米粒子（Pd-NPs）修饰的聚噻吩导电聚合物纳米球。在 PdCl4(2-)离子存在下，2-TPM 聚合形成聚噻吩纳米球，无需额外的还原剂或有机表面封端配体即可还原为 Pd-NPs，形成的 Pd-NPs 的尺寸小于 20nm，均匀覆盖尺寸为 120nm 至 200nm 的聚噻吩纳米球。Pd-NP/聚噻吩纳米球通过扫描透射电子显微镜（STEM）、透射电子显微镜（TEM）和扫描电子显微镜（SEM）、粉末 X 射线衍射（PXRD）、X 射线光电子能谱（XPS）和电感耦合等离子体原子发射光谱（ICP-AES）进行了表征。研究发现，Pd-NP/聚噻吩纳米球在温和的需氧反应条件下，是用于 Suzuki-Miyaura 交叉偶联反应的广泛底物的优秀催化剂。
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