CPL - Chalmers Publication Library
| Utbildning | Forskning | Styrkeområden | Om Chalmers | In English In English Ej inloggad.

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

S. Elmas ; W. Beelders ; S. J. Bradley ; Renee Kroon (Institutionen för kemi och kemiteknik, Polymerteknologi) ; G. Laufersky ; Mats R. Andersson (Institutionen för kemi och kemiteknik, Polymerteknologi) ; T. Nann
ACS Sustainable Chemistry & Engineering (2168-0485). Vol. 5 (2017), 11, p. 10206-10214.
[Artikel, refereegranskad vetenskaplig]

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.

Nyckelord: Oxygen reduction reaction, Hydrogen evolution reaction, Electrocatalyst, Conducting polymer, Terthiophene, Metal complex, Low metal loading, Fuel cells



Denna post skapades 2017-11-28.
CPL Pubid: 253411

 

Läs direkt!


Länk till annan sajt (kan kräva inloggning)


Institutioner (Chalmers)

Institutionen för kemi och kemiteknik, Polymerteknologi

Ämnesområden

Kemi

Chalmers infrastruktur