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http://hdl.handle.net/1942/39968
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DC Field | Value | Language |
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dc.contributor.author | Zlatar, Matej | - |
dc.contributor.author | Nater, Darryl | - |
dc.contributor.author | Escalera-Lopez, Daniel | - |
dc.contributor.author | MARY JOY, Rani | - |
dc.contributor.author | POBEDINSKAS, Paulius | - |
dc.contributor.author | HAENEN, Ken | - |
dc.contributor.author | Coperet, Christophe | - |
dc.contributor.author | Cherevko, Serhiy | - |
dc.date.accessioned | 2023-04-24T11:27:06Z | - |
dc.date.available | 2023-04-24T11:27:06Z | - |
dc.date.issued | 2023 | - |
dc.date.submitted | 2023-04-05T14:50:03Z | - |
dc.identifier.citation | ELECTROCHIMICA ACTA, 444 (Art N° 141982) | - |
dc.identifier.uri | http://hdl.handle.net/1942/39968 | - |
dc.description.abstract | Single-atom catalysts (SACs) have recently emerged in electrocatalysis due to their improved electrocatalytic performance in many industrially relevant reactions. The potential application of SACs also includes oxygen evolution reaction (OER), where high anodic potentials and corrosive acidic environments narrow the choice of classical nanoparticulated electrocatalysts to scarce iridium (Ir) and ruthenium (Ru) noble metals. To date, published literature mainly focused on improving SACs activity or selectivity, while stability was rarely assessed using electrochemical methods and post-mortem characterizations. To fill this knowledge gap, we utilize an online inductively coupled plasma mass spectrometry setup (online ICP-MS) to evaluate the stability of Ir SAC and highly dispersed Ru catalysts supported by indium doped tin oxide (ITO) prepared via surface organometallic chemistry. After benchmarking with commercial IrO2 and RuO2 nanoparticulated catalysts, we validate their high activity and determine their lower stability, confirming the previously reported inverse activity-stability relationship. The observed lower stability is proposed to originate from a change in the OER mechanism from the adsorbate evolution mechanism (AEM) driven by the catalysts to the lattice oxygen mechanism (LOM) with participation of the support. This is confirmed by the increase in Tafel slope, coinciding with the dissolution onset of the ITO support. Additionally, we show that there is no effect of the commonly used backing electrodes (glassy carbon, gold foil, and boron-doped diamond) on the activity and stability. This work provides guidelines for evaluating highly dispersed atomic catalysts in future research and fundamental insights into the role of the support in their stability. | - |
dc.description.sponsorship | This work was supported by Deutsche Forschungsgemeinschaft (DFG) within the grant CH 1763/4-1, the Methusalem NANO network, and the Research Foundation – Flanders (FWO) via project G0D4920N. CC and DN thank Dmitry Lebedev and Xing Huang for part of the sample preparation and microscopy measurement, respectively. | - |
dc.language.iso | en | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.rights | 2023 Elsevier Ltd. All rights reserved. | - |
dc.subject.other | Single-atom catalysts | - |
dc.subject.other | Oxygen evolution reaction | - |
dc.subject.other | Stability | - |
dc.subject.other | ICP-MS | - |
dc.subject.other | Lattice oxygen mechanism | - |
dc.subject.other | Backing electrode | - |
dc.title | Evaluating the stability of Ir single atom and Ru atomic cluster oxygen evolution reaction electrocatalysts | - |
dc.type | Journal Contribution | - |
dc.identifier.volume | 444 | - |
local.format.pages | 10 | - |
local.bibliographicCitation.jcat | A1 | - |
dc.description.notes | Zlatar, M; Cherevko, S (corresponding author), Forschungszentrum Julich, Helmholtz Inst Erlangen Nurnberg Renewable Energy, Cauerstr 1, D-91058 Erlangen, Germany. | - |
dc.description.notes | m.zlatar@fz-juelich.de; s.cherevko@fz-juelich.de | - |
local.publisher.place | THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND | - |
local.type.refereed | Refereed | - |
local.type.specified | Article | - |
local.bibliographicCitation.artnr | 141982 | - |
dc.identifier.doi | 10.1016/j.electacta.2023.141982 | - |
dc.identifier.isi | 000943330500001 | - |
local.provider.type | wosris | - |
local.description.affiliation | [Zlatar, Matej; Escalera-Lopez, Daniel; Cherevko, Serhiy] Forschungszentrum Julich, Helmholtz Inst Erlangen Nurnberg Renewable Energy, Cauerstr 1, D-91058 Erlangen, Germany. | - |
local.description.affiliation | [Zlatar, Matej] Friedrich Alexander Univ Erlangen Nurnberg, Dept Chem & Biol Engn, Egerlandstr 3, D-91058 Erlangen, Germany. | - |
local.description.affiliation | [Nater, Darryl; Coperet, Christophe] Swiss Fed Inst Technol, Dept Chem & Appl Biosci, Vladimir Prelog Weg 1-5, CH-8093 Zurich, Switzerland. | - |
local.description.affiliation | [Joy, Rani Mary; Pobedinskas, Paulius; Haenen, Ken] Hasselt Univ, Inst Mat Res IMO, Wetenschapspark 1, B-3590 Diepenbeek, Belgium. | - |
local.description.affiliation | [Joy, Rani Mary; Pobedinskas, Paulius; Haenen, Ken] IMEC Vzw, IMOMEC, Wetenschapspark 1, B-3590 Diepenbeek, Belgium. | - |
local.description.affiliation | [Escalera-Lopez, Daniel] Max Planck Gesell, Fritz Haber Inst, Dept Interface Sci, D-14195 Berlin, Germany. | - |
local.uhasselt.international | yes | - |
item.fulltext | With Fulltext | - |
item.fullcitation | Zlatar, Matej; Nater, Darryl; Escalera-Lopez, Daniel; MARY JOY, Rani; POBEDINSKAS, Paulius; HAENEN, Ken; Coperet, Christophe & Cherevko, Serhiy (2023) Evaluating the stability of Ir single atom and Ru atomic cluster oxygen evolution reaction electrocatalysts. In: ELECTROCHIMICA ACTA, 444 (Art N° 141982). | - |
item.accessRights | Embargoed Access | - |
item.contributor | Zlatar, Matej | - |
item.contributor | Nater, Darryl | - |
item.contributor | Escalera-Lopez, Daniel | - |
item.contributor | MARY JOY, Rani | - |
item.contributor | POBEDINSKAS, Paulius | - |
item.contributor | HAENEN, Ken | - |
item.contributor | Coperet, Christophe | - |
item.contributor | Cherevko, Serhiy | - |
item.embargoEndDate | 2025-03-10 | - |
crisitem.journal.issn | 0013-4686 | - |
crisitem.journal.eissn | 1873-3859 | - |
Appears in Collections: | Research publications |
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Evaluating the stability of Ir single atom and Ru atomic cluster oxygen evolution reaction electrocatalysts.pdf Restricted Access | Published version | 1.76 MB | Adobe PDF | View/Open Request a copy |
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