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Diverse composites of metal-complexes and PEDOT facilitated by metal-free vapour phase polymerization
Vise andre og tillknytning
2017 (engelsk)Inngår i: Reactive & functional polymers, ISSN 1381-5148, E-ISSN 1873-166X, Vol. 116, s. 101-106Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Abstract Oxidative polymerization for the manufacture of conducting polymers such as poly(3,4-ethylenedioxy-thiophene) has traditionally employed iron(III) salts. Demonstrated in this study is vapour phase polymerization of 3,4-ethylenedio- xythiophene using a metal-free oxidant, ammonium persulfate, leading to films with an estimated conductivity of 75 S/cm. Additionally, a route for embedding active transition metal complexes into these poly(3,4-ethylenedioxythiophene)/-poly(styrene-4-sulfonate) (PEDOT/PSS) films via vapour assisted complexation is outlined. Here, the vapour pressure of solid ligands around their melting temperatures was exploited to ensure complexation to metal ions added into the oxidant mixture prior to polymerization of PEDOT. Four composite systems are discussed, viz. PEDOT/PSS embedded with tris(8-hydroxyquinolinato)cobalt(III), tris(2,2-bipyridine)cobalt(II), tris(1,10- phenanthroline)cobalt(II) and tris(8-hyd-roxyquinolinato)aluminium(III). Using these composites, electrochemical reduction of nitrite to ammonia with a faradaic efficiency of 61% was reported.

sted, utgiver, år, opplag, sider
Elsevier, 2017. Vol. 116, s. 101-106
Emneord [en]
Conducting polymers, Vapour pressure, Reduction, Nitrite, Ammonia
HSV kategori
Identifikatorer
URN: urn:nbn:se:umu:diva-135508DOI: 10.1016/j.reactfunctpolym.2017.04.008ISI: 000403519800013OAI: oai:DiVA.org:umu-135508DiVA, id: diva2:1102693
Tilgjengelig fra: 2017-05-30 Laget: 2017-05-30 Sist oppdatert: 2018-06-09bibliografisk kontrollert

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