Journal Title
Title of Journal: Electrocatalysis
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Abbravation: Electrocatalysis
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Authors: Michael H Robson Kateryna Artyushkova Wendy Patterson Plamen Atanassov Michael R Hibbs
Publish Date: 2013/12/07
Volume: 5, Issue: 2, Pages: 148-158
Abstract
Described in this work is an electrochemical evaluation of novel alkaline ionomers employed as catalyst binder for nonplatinum group metal electrocatalysts based on cyanamide precursor Electrochemical evaluation of the nonplatinum group metal nonPGM catalyst bound with the featured alkaline ionomer classes over a range of conditions gives insight into how they behave as well as provide information on how the varying functionalities enhance or inhibit the rate of oxygen reduction We are showing that the polymer backbone structure has a larger influence on facilitating favorable reaction kinetics than ionomer to catalysts ratio The polysulfonederived ionomers result in a worse activity than electrocatalysts with Nafion® and polyphenylenederived ionomers They also exhibited more peroxide desorption and greater limitation in the mass transport regime The polyphenylenederived polymers performed in line with the benchmark ionomer Nafion® The polyphenylenederived ionomers show promise as fruitful line of research in establishing an anionconducting ionomer for alkaline electrolyte fuel cells
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