New catalysts for formic acid fuel cells-Reference-Cited by-同舟云学术

New catalysts for formic acid fuel cells

Published:2022 Issue:3 Volume:19 Page:387-401
ISSN:1451-4869
Container-title:Serbian Journal of Electrical Engineering
language:en
Short-container-title:Serb J Electr Eng

Author:

Spasojevic-Savkovic Milica¹^ORCID,Kicanovic Zoran²,Spasojevic Pavle²,Lukovic Milentije²^ORCID

Affiliation:

1. Innovation Center of the Faculty of Chemistry, University of Belgrade, Belgrade, Serbia

2. Joint Laboratory for Advanced Materials of SASA, Section of Amorphous Systems, Faculty of Technical Sciences, Čačak, University of Kragujevac, Čačak, Serbia

Abstract

Thallium adatoms deposited at under-potentials have shown the catalytic effect during the electrooxidation of formic acid on platinum ruthenium alloys. At Pt/Ru with an optimal coverage degree with adatoms Tl, HCOOH is oxidized at nearly 180 mV more negative potential than at Pt/Ru electrodes. The catalytic effect of modified Pt/Ru electrodes is plausibly caused by interaction of the Tl adatoms, located at Pt atoms with OH species of adjacent Ru atoms. These interactions stabilize Ru-OH species and allows for their formation at more negative potentials than at the Pt/Ru electrodes. The Ru-OH species oxidize firmly bound intermediates COad and thus release the Pt atoms for the oxidation of subsequent HCOOH molecules. The catalytic effect is probably caused by the third-body effect.

Publisher

National Library of Serbia

Subject

Electrical and Electronic Engineering,Computer Networks and Communications,Hardware and Architecture,Mechanical Engineering,Energy Engineering and Power Technology,Control and Systems Engineering

Reference55 articles.

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