title: Simple preparation of Pd-NP/polythiophene nanospheres for heterogeneous catalysis.
abstract: 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.
authors.affiliation: Department of Chemistry and Protein Research Center for Bio-Industry, Hankuk University of Foreign Studies, Yongin 449-791, Republic of Korea.
authors.forename: Sang-Eun
authors.initials: SE
authors.lastname: Bae
authors.affiliation: Department of Chemistry and Protein Research Center for Bio-Industry, Hankuk University of Foreign Studies, Yongin 449-791, Republic of Korea.
authors.forename: Ki-Jung
authors.initials: KJ
authors.lastname: Kim
authors.affiliation: Department of Chemistry and Protein Research Center for Bio-Industry, Hankuk University of Foreign Studies, Yongin 449-791, Republic of Korea.
authors.forename: Yong-Kyung
authors.initials: YK
authors.lastname: Hwang
authors.affiliation: Department of Chemistry and Protein Research Center for Bio-Industry, Hankuk University of Foreign Studies, Yongin 449-791, Republic of Korea. Electronic address: shuh@hufs.ac.kr.
authors.forename: Seong
authors.initials: S
authors.lastname: Huh
mesh_terms: D002384:Catalysis; D007477:Ions; D008024:Ligands; D053768:Metal Nanoparticles / Q000737:chemistry; D000432:Methanol / Q000737:chemistry; D017348:Microscopy, Electron, Scanning Transmission; D046529:Microscopy, Electron, Transmission; D054118:Nanospheres / Q000737:chemistry*; D010084:Oxidation-Reduction; D010165:Palladium / Q000737:chemistry*; D056951:Photoelectron Spectroscopy; D011108:Polymers / Q000737:chemistry*; D013876:Thiophenes / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: D007477:Ions; D008024:Ligands; D011108:Polymers; D013876:Thiophenes; C066730:polythiophene; D010165:Palladium; D000432:Methanol
keywords: Heterogeneous catalysis; Nanoparticle; Palladium; Polythiophene; Suzuki–Miyaura cross-coupling