Please use this identifier to cite or link to this item: https://doi.org/10.15480/882.1732
This item is licensed with a CreativeCommons licence by/4.0
DC FieldValueLanguage
dc.contributor.authorShi, Shan-
dc.contributor.authorMarkmann, Jürgen-
dc.contributor.authorWeißmüller, Jörg-
dc.date.accessioned2018-08-16T05:38:28Z-
dc.date.available2018-08-16T05:38:28Z-
dc.date.issued2018-07-20-
dc.identifier.citationElectrochimica Acta (285): 60-69 (2018)de_DE
dc.identifier.issn0013-4686de_DE
dc.identifier.urihttp://tubdok.tub.tuhh.de/handle/11420/1735-
dc.description.abstractThis work presents systematic investigations on the synthesis of hierarchical nanoporous Pd via electrochemical dealloying of CuPd alloys in sulfuric acid. The impact of electrode potential, dealloying temperature, and additional annealing on microstructure and morphology is explored. Dealloying Cu85Pd15 in 1M sulfuric acid at elevated temperature provides a facile strategy to produce bulk nanoporous Pd samples which are uniform, hierarchically nanoporous, and free of macro-scale cracks. The question “Why will one-step template-free dealloying yield a hierarchical and not unimodal nanoporous structure?” is discussed. The impact of passivation and of a percolating Cu-rich cluster on the pore structure is inspected. A structural instability concept for dealloying of dilute master alloys is preferred as the underlying mechanism. Nanoporous Pd with classical, unimodal pore structure and tunable ligament size ranging from 80 to 270 nm emerges when the as-prepared hierarchical nanoporous Pd is annealed. The material of this study may provide a model system that complements nanoporous Au for studies of bulk nanoscale metal networks as functional and structural materials.en
dc.language.isoende_DE
dc.publisherElsevierde_DE
dc.relation.ispartofElectrochimica actade_DE
dc.rightsinfo:eu-repo/semantics/openAccess-
dc.subjectnanoporous palladiumde_DE
dc.subjectdealloyingde_DE
dc.subjectcoarseningde_DE
dc.subject.ddc620: Ingenieurwissenschaftende_DE
dc.titleSynthesis of uniform bulk nanoporous palladium with tunable structurede_DE
dc.typeArticlede_DE
dc.identifier.urnurn:nbn:de:gbv:830-88222264-
dc.identifier.doi10.15480/882.1732-
dc.type.diniarticle-
dc.subject.ddccode620-
dcterms.DCMITypeText-
tuhh.identifier.urnurn:nbn:de:gbv:830-88222264de_DE
tuhh.oai.showtrue-
dc.identifier.hdl11420/1735-
tuhh.abstract.englishThis work presents systematic investigations on the synthesis of hierarchical nanoporous Pd via electrochemical dealloying of CuPd alloys in sulfuric acid. The impact of electrode potential, dealloying temperature, and additional annealing on microstructure and morphology is explored. Dealloying Cu85Pd15 in 1M sulfuric acid at elevated temperature provides a facile strategy to produce bulk nanoporous Pd samples which are uniform, hierarchically nanoporous, and free of macro-scale cracks. The question “Why will one-step template-free dealloying yield a hierarchical and not unimodal nanoporous structure?” is discussed. The impact of passivation and of a percolating Cu-rich cluster on the pore structure is inspected. A structural instability concept for dealloying of dilute master alloys is preferred as the underlying mechanism. Nanoporous Pd with classical, unimodal pore structure and tunable ligament size ranging from 80 to 270 nm emerges when the as-prepared hierarchical nanoporous Pd is annealed. The material of this study may provide a model system that complements nanoporous Au for studies of bulk nanoscale metal networks as functional and structural materials.de_DE
tuhh.publisher.doi10.1016/j.electacta.2018.07.081-
tuhh.publication.instituteKeramische Hochleistungswerkstoffe M-9de_DE
tuhh.publication.instituteWerkstoffphysik und -technologie M-22de_DE
tuhh.identifier.doi10.15480/882.1732-
tuhh.type.opus(wissenschaftlicher) Artikelde
tuhh.institute.germanWerkstoffphysik und -technologie M-22de
tuhh.institute.englishWerkstoffphysik und -technologie M-22de_DE
tuhh.gvk.hasppnfalse-
tuhh.hasurnfalse-
openaire.rightsinfo:eu-repo/semantics/openAccessde_DE
dc.type.driverarticle-
dc.rights.ccbyde_DE
dc.rights.ccversion4.0de_DE
dc.type.casraiJournal Articleen
tuhh.container.volume285de_DE
tuhh.container.startpage60de_DE
tuhh.container.endpage69de_DE
dc.rights.nationallicensefalsede_DE
item.fulltextWith Fulltext-
item.creatorOrcidShi, Shan-
item.creatorOrcidMarkmann, Jürgen-
item.creatorOrcidWeißmüller, Jörg-
item.creatorGNDShi, Shan-
item.creatorGNDMarkmann, Jürgen-
item.creatorGNDWeißmüller, Jörg-
item.grantfulltextopen-
crisitem.author.deptWerkstoffphysik und -technologie M-22-
crisitem.author.deptWerkstoffphysik und -technologie M-22-
crisitem.author.deptWerkstoffphysik und -technologie M-22-
crisitem.author.orcid0000-0002-1384-0581-
crisitem.author.orcid0000-0002-8958-4414-
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