Free-Sustaining Three-Dimensional S235 Steel-Based Porous Electrocatalyst for Highly Efficient and Durable Oxygen Evolution

DC FieldValueLanguage
dc.contributor.authorHan, Weijia
dc.contributor.authorKuepper, Karsten
dc.contributor.authorHou, Peilong
dc.contributor.authorAkram, Wajiha
dc.contributor.authorEickmeier, Henning
dc.contributor.authorHardege, Joerg
dc.contributor.authorSteinhart, Martin
dc.contributor.authorSchaefer, Helmut
dc.date.accessioned2021-12-23T16:07:46Z-
dc.date.available2021-12-23T16:07:46Z-
dc.date.issued2018
dc.identifier.issn18645631
dc.identifier.urihttps://osnascholar.ub.uni-osnabrueck.de/handle/unios/8051-
dc.description.abstractA novel oxygen evolution reaction (OER) catalyst (3 D S235-P steel) based on a steel S235 substrate was successfully prepared by facile one-step surface modification. The standard carbon-manganese steel was phosphorized superficially, which led to the formation of a unique 3 D interconnected nanoporous surface with a high specific area that facilitated the electrocatalytically initiated oxygen evolution reaction. The prepared 3 D S235-P steel exhibited enhanced electrocatalytic OER activities in the alkaline regime, as confirmed by a low overpotential (326 mV at a 10 mA cm(-2)) and a small Tafel slope of 68.7 mV dec(-1). Moreover, the catalyst was found to be stable under long-term usage conditions, functioning as an oxygen-evolving electrode at pH 13, as evidenced by the sufficient charge-to-oxygen conversion rate (faradaic efficiency: 82.11 and 88.34% at 10 and 5mAcm(-2), respectively). In addition, it turned out that the chosen surface modification delivered steel S235 as an OER electrocatalyst that was stable under neutral pH conditions. Our investigation revealed that the high catalytic activities likely stemmed from the generated Fe/(Mn) hydroxide/oxohydroxides generated during the OER process. Phosphorization treatment therefore not only is an efficient way to optimize the electrocatalytic performance of standard carbon-manganese steel but also enables for the development of low-costing and abundant steels in the field of energy conversion.
dc.description.sponsorshipEuropean Research Council (ERC-CoG-2014) [646742 INCANA]; German Research FoundationGerman Research Foundation (DFG) [INST 190/164-1 FUGG]; This work was supported by the European Research Council (ERC-CoG-2014; project 646742 INCANA) and the German Research Foundation (INST 190/164-1 FUGG).
dc.language.isoen
dc.publisherWILEY-V C H VERLAG GMBH
dc.relation.ispartofCHEMSUSCHEM
dc.subjectChemistry
dc.subjectChemistry, Multidisciplinary
dc.subjectelectrocatalysis
dc.subjectenergy conversion
dc.subjectFE
dc.subjectGreen & Sustainable Science & Technology
dc.subjectHIGH-PERFORMANCE
dc.subjectHYDROGEN EVOLUTION
dc.subjectIRON-OXIDES
dc.subjectLOW-COST
dc.subjectMETAL PHOSPHIDES
dc.subjectNANOPARTICLES
dc.subjectoxygen
dc.subjectphosphorization
dc.subjectREACTION CATALYST
dc.subjectScience & Technology - Other Topics
dc.subjectSTAINLESS-STEEL
dc.subjectsteel
dc.subjectWATER OXIDATION
dc.titleFree-Sustaining Three-Dimensional S235 Steel-Based Porous Electrocatalyst for Highly Efficient and Durable Oxygen Evolution
dc.typejournal article
dc.identifier.doi10.1002/cssc.201801351
dc.identifier.isiISI:000448064300014
dc.description.volume11
dc.description.issue20
dc.description.startpage3661
dc.description.endpage3671
dc.contributor.orcid0000-0002-2572-9282
dc.contributor.orcid0000-0001-5906-3354
dc.contributor.orcid0000-0002-5241-8498
dc.contributor.orcid0000-0001-6460-6229
dc.contributor.researcheridAAM-1614-2020
dc.contributor.researcheridD-7919-2011
dc.contributor.researcheridB-7811-2011
dc.identifier.eissn1864564X
dc.publisher.placePOSTFACH 101161, 69451 WEINHEIM, GERMANY
dcterms.isPartOf.abbreviationChemSusChem
dcterms.oaStatusGreen Accepted, Green Submitted
crisitem.author.deptFB 04 - Physik-
crisitem.author.deptidfb04-
crisitem.author.orcid0000-0002-5241-8498-
crisitem.author.parentorgUniversität Osnabrück-
crisitem.author.netidKuKa120-
crisitem.author.netidStMa946-
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