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The influence of hydrogen sulphide contamination on platinum catalyst used in polymer electrolyte membrane fuel cells during potential cycling at 0.05–1.05 V vs RHE: An RRDE study

Dushina, Anastasia and Schmies, Henrike and Schonvogel, Dana and Dyck, Alexander and Wagner, Peter (2020) The influence of hydrogen sulphide contamination on platinum catalyst used in polymer electrolyte membrane fuel cells during potential cycling at 0.05–1.05 V vs RHE: An RRDE study. International Journal of Hydrogen Energy. Elsevier. doi: 10.1016/j.ijhydene.2020.05.038. ISSN 0360-3199. (In Press)

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Official URL: https://www.sciencedirect.com/science/article/abs/pii/S0360319920318152?via%3Dihub

Abstract

The effect of H2S contamination on platinum catalyst has been investigated in terms of rotating ring disk electrode measurements (RRDE) in 0.1 M HClO4. The electrochemical surface area (ECSA) was determined by hydrogen underpotential deposition (HUPD) and CO stripping methods before and after accelerated stress tests (AST). The observed reduced losses of ECSA of the catalyst in the presence of H2S were associated to adsorbed sulphuric compounds on the catalyst surface which changed electrochemical characteristics of the materials surface. The RRDE experiments revealed that for oxygen reduction reaction (ORR) mass and specific activities were essentially decreased after AST with H2S contamination which was attributed to the interstitial defect on platinum atom sites due to adsorbed sulphuric compounds. Identical location and high resolution transmission electron microscopy (TEM) analysis have revealed only slightly different catalyst surface morphology and particle sizes before and after the AST indicating rather atomic scale deterioration of the platinum catalyst surface due to the adsorbed sulphur species.

Item URL in elib:https://elib.dlr.de/136325/
Document Type:Article
Title:The influence of hydrogen sulphide contamination on platinum catalyst used in polymer electrolyte membrane fuel cells during potential cycling at 0.05–1.05 V vs RHE: An RRDE study
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Dushina, Anastasiaanastasia.dushina (at) dlr.dehttps://orcid.org/0000-0003-4193-9906
Schmies, HenrikeHenrike.Schmies (at) dlr.dehttps://orcid.org/0000-0002-6565-1280
Schonvogel, Danadana.schonvogel (at) dlr.dehttps://orcid.org/0000-0002-2485-740X
Dyck, Alexanderalexander.dyck (at) dlr.dehttps://orcid.org/0000-0001-9760-9493
Wagner, Peterp.wagner (at) dlr.dehttps://orcid.org/0000-0002-5644-9881
Date:23 June 2020
Journal or Publication Title:International Journal of Hydrogen Energy
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI :10.1016/j.ijhydene.2020.05.038
Publisher:Elsevier
ISSN:0360-3199
Status:In Press
Keywords:Accelerated stress test Electrocatalytic activity Hydrogen sulphide Rotating ring disk electrode Polymer electrolyte membrane fuel cell
HGF - Research field:Energy
HGF - Program:Technology, Innovation and Society
HGF - Program Themes:Renewable Energy and Material Resources for Sustainable Futures - Integrating at Different Scales
DLR - Research area:Energy
DLR - Program:E SY - Energy Systems Analysis
DLR - Research theme (Project):E - Energy Systems Technology (old)
Location: Oldenburg
Institutes and Institutions:Institute of Networked Energy Systems > Fuel Cells
Deposited By: Dushina, Anastasia
Deposited On:09 Dec 2020 18:31
Last Modified:09 Dec 2020 18:31

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