title: Development of polymeric palladium-nanoparticle membrane-installed microflow devices and their application in hydrodehalogenation.
abstract: We have developed a variety of polymeric palladium-nanoparticle membrane-installed microflow devices. Three types of polymers were convoluted with palladium salts under laminar flow conditions in a microflow reactor to form polymeric palladium membranes at the laminar flow interface. These membranes were reduced with aqueous sodium formate or heat to create microflow devices that contain polymeric palladium-nanoparticle membranes. These microflow devices achieved instantaneous hydrodehalogenation of aryl chlorides, bromides, iodides, and triflates by 10-1000 ppm within a residence time of 2-8 s at 50-90 °C by using safe, nonexplosive, aqueous sodium formate to quantitatively afford the corresponding hydrodehalogenated products. Polychlorinated biphenyl (10-1000 ppm) and polybrominated biphenyl (1000 ppm) were completely decomposed under similar conditions, yielding biphenyl as a fungicidal compound.
authors.affiliation: RIKEN Advanced Science Institute, Wako, Saitama, Japan.
authors.forename: Yoichi M A
authors.initials: YM
authors.lastname: Yamada
authors.forename: Toshihiro
authors.initials: T
authors.lastname: Watanabe
authors.forename: Aya
authors.initials: A
authors.lastname: Ohno
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Uozumi
mesh_terms: D054879:Halogenation; D008567:Membranes, Artificial; D053768:Metal Nanoparticles / Q000737:chemistry*; D055616:Microtechnology / Q000295:instrumentation*; D010165:Palladium / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D012449:Safety
chemical_list: D008567:Membranes, Artificial; D011108:Polymers; D010165:Palladium