In this work a new polymeric binder (PIM-1) to prepare and characterize composite material to form cathodes for the oxygen reduction reaction has been investigated and discussed. The new binder is a Polymer of Intrinsic Microporosity (PIM), a family of organic compounds with molecularly rigid (glassy) structure with good mechanical and chemical stability. Their influence on electrocatalytic behaviour of a commercial electro- catalyst during the oxygen reduction reaction in acidic and alkaline media has been investigated and discussed compared to the behaviour of common cationic and anionic polymer binders, using rotating disk electrode (RDE) techniques. Poly- mers of intrinsic microporosity perform similarly well, and sometimes better (due to rigidity and gas permeation), when compared to commercial binders. Thus, polymers of intrinsic microporosity do represent a very promising and versatile alternative as binder in electrocatalysis.

Polymer of Intrinsic Microporosity as Binders for both Acidic and Alkaline Oxygen Reduction Electrocatalysis / M. Burba, E. Pargoletti, F. Marken, N.B. Mckeown, M. Carta, A. Vertova, A. Minguzzi. - In: CHEMELECTROCHEM. - ISSN 2196-0216. - (2023), pp. e202300481.1-e202300481.9. [Epub ahead of print] [10.1002/celc.202300481]

Polymer of Intrinsic Microporosity as Binders for both Acidic and Alkaline Oxygen Reduction Electrocatalysis

M. Burba
Primo
;
E. Pargoletti
Secondo
;
A. Vertova
Penultimo
;
A. Minguzzi
Ultimo
2023

Abstract

In this work a new polymeric binder (PIM-1) to prepare and characterize composite material to form cathodes for the oxygen reduction reaction has been investigated and discussed. The new binder is a Polymer of Intrinsic Microporosity (PIM), a family of organic compounds with molecularly rigid (glassy) structure with good mechanical and chemical stability. Their influence on electrocatalytic behaviour of a commercial electro- catalyst during the oxygen reduction reaction in acidic and alkaline media has been investigated and discussed compared to the behaviour of common cationic and anionic polymer binders, using rotating disk electrode (RDE) techniques. Poly- mers of intrinsic microporosity perform similarly well, and sometimes better (due to rigidity and gas permeation), when compared to commercial binders. Thus, polymers of intrinsic microporosity do represent a very promising and versatile alternative as binder in electrocatalysis.
Settore CHIM/02 - Chimica Fisica
   Novel Multilayered and Micro.Machined Electrode nano-Architectures for Electrocatalytic Applica-tions (Fuel cells and Electrolyzers)
   Fuel cells and Electrolyzers
   MINISTERO DELL'ISTRUZIONE E DEL MERITO
   2017YH9MRK_004
2023
14-dic-2023
Article (author)
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/1020916
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