Enhanced electrochemical hydrogen oxidation reaction and suppressed hydrogen peroxide generation properties on Pt/Ir(111) bimetallic surfaces

Simultaneous accomplishment of high hydrogen oxidation reaction (HOR) activity and suppressed hydrogen peroxide (H 2 O 2 ) generation is desired for anode catalysts of polymer electrolyte fuel cells. 0.3 monolayer-thick-Pt-deposited Ir(111) showed three-fold higher HOR activity than Pt(111) and supp...

Full description

Saved in:
Bibliographic Details
Published in:Physical chemistry chemical physics : PCCP 2023-01, Vol.25 (4), p.277-2775
Main Authors: Hayashi, Kenta, Tomimori, Takeru, Sato, Riku, Todoroki, Naoto, Wadayama, Toshimasa
Format: Article
Language:English
Subjects:
Bimetals
Catalysts
Electrolytic cells
Hydrogen peroxide
Iridium
Oxidation
Proton exchange membrane fuel cells
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Simultaneous accomplishment of high hydrogen oxidation reaction (HOR) activity and suppressed hydrogen peroxide (H 2 O 2 ) generation is desired for anode catalysts of polymer electrolyte fuel cells. 0.3 monolayer-thick-Pt-deposited Ir(111) showed three-fold higher HOR activity than Pt(111) and suppressed H 2 O 2 generation under the detection limit, providing insights for effective catalyst development. A Pt 0.3ML /Ir(111) model catalyst showed desirable properties for a polymer electrolyte fuel cell anode, including enhanced hydrogen oxidation activity and suppressed H 2 O 2 generation.
ISSN:1463-9076
1463-9084
DOI:10.1039/d2cp05430b