Platinum Terpyridine Metallopolymer Electrode as Cost-Effective Replacement for Bulk Platinum Catalysts in Oxygen Reduction Reaction and Hydrogen Evolution Reaction
Journal article, 2017

Conducting polymers consisting of metal-selective coordination units and a highly conductive backbone, so-called metallopolymers, are interesting materials exposing single atoms for photo/electrocatalysis and thus represent a potential low-cost alternative for bulk or nano particulate platinum group metals (PGMs). We synthesized and fully characterized an electropolymerisable monomer bearing a pendant terpyridine unit for the selective complexation of PGMs. Electrocatalytic tests of the resulting metallopolymer, poly-[(tThTerpy)PtCl]Cl, revealed activity both in the oxygen reduction reaction and hydrogen evolution reaction. Rotating disk experiments showed the direct four-electron reduction of molecular oxygen to water at low angular velocities of the rotating electrode. Furthermore, the fabrication of Pt metallopolymers proved to be simple, nonhazardous and versatile. This proof-of-concept opens up the possibility for developing future low-cost electro-and photocatalysts to replace current systems.

Oxygen reduction reaction

Low metal loading

Metal complex

Terthiophene

Hydrogen evolution reaction

Conducting polymer

Electrocatalyst

Fuel cells

Author

S. Elmas

University of South Australia

W. Beelders

University of South Australia

S. J. Bradley

Victoria University of Wellington

Renee Kroon

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry, Polymer Technology

G. Laufersky

Victoria University of Wellington

Mats Andersson

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry, Polymer Technology

T. Nann

Victoria University of Wellington

University of South Australia

ACS Sustainable Chemistry & Engineering

2168-0485 (eISSN)

Vol. 5 11 10206-10214

Subject Categories

Chemical Sciences

DOI

10.1021/acssuschemeng.7b02198

More information

Latest update

3/7/2018 8