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dc.contributor.authorChen, Jialu
dc.contributor.authorDavies, Jemima J.
dc.contributor.authorGoodfellow, Alister S.
dc.contributor.authorHall, Sarah M.D.
dc.contributor.authorLancaster, Helena G.
dc.contributor.authorLiu, Xinyu
dc.contributor.authorRhodes, Cameron J.
dc.contributor.authorZhou, Wuzong
dc.date.accessioned2021-04-16T11:30:19Z
dc.date.available2021-04-16T11:30:19Z
dc.date.issued2021-02
dc.identifier.citationChen , J , Davies , J J , Goodfellow , A S , Hall , S M D , Lancaster , H G , Liu , X , Rhodes , C J & Zhou , W 2021 , ' Growth mechanisms of Ag and Cu nanodendrites via Galvanic replacement reactions ' , Progress in Natural Science: Materials International , vol. 31 , no. 1 , pp. 141-151 . https://doi.org/10.1016/j.pnsc.2020.12.007en
dc.identifier.issn1002-0071
dc.identifier.otherPURE: 272576540
dc.identifier.otherPURE UUID: f1884d73-5016-4131-8bb6-6cf8ff05a0ed
dc.identifier.otherRIS: urn:0CDFC571316E0BAC165C96C6B76DB905
dc.identifier.otherScopus: 85099381157
dc.identifier.otherORCID: /0000-0001-9752-7076/work/87845388
dc.identifier.otherWOS: 000639485000003
dc.identifier.urihttp://hdl.handle.net/10023/23041
dc.descriptionJLC thanks Chinese Scholarship Council and University of St Andrews for financial support.en
dc.description.abstractDendritic silver and copper crystals were produced via Galvanic replacement reactions on zinc and aluminum plates, respectively. The growth orientations of these metals were determined using electron microscopy. The results showed that a fast crystal growth associated with a high concentration of metal cations led to kinetically controlled growth along the <112> axes of the cubic close-packed structures. However, a slow growth rate resulted in thermodynamically controlled growth along the [111] axis. The crystal growth was not found to rely upon the direct deposition of metal cations at crystallographic sites on crystal facets, but instead, hydrated metal cations deposited on the crystal surface to form an amorphous coating layer, followed by the reduction of metal cations and crystallization at the crystal/coating interface. Twin defects and stacking faults were often observed across the whole particle and commonly observed ⅓{422} diffraction spots were explained by stacking faults rather than by the possible presence of any superstructures. The present work offers evidences to claim that both the crystal growth rate and Coulomb interaction between negatively charged crystal surface and metal cations play an important role in the formation of metal dendrites in replacement reactions.
dc.format.extent11
dc.language.isoeng
dc.relation.ispartofProgress in Natural Science: Materials Internationalen
dc.rightsCopyright © 2021 Chinese Materials Research Society. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).en
dc.subjectSilver nanodendriteen
dc.subjectCopper nanodendriteen
dc.subjectElectron microscopyen
dc.subjectStacking faulten
dc.subjectCrystal growthen
dc.subjectQD Chemistryen
dc.subjectDASen
dc.subject.lccQDen
dc.titleGrowth mechanisms of Ag and Cu nanodendrites via Galvanic replacement reactionsen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.School of Chemistryen
dc.contributor.institutionUniversity of St Andrews.EaSTCHEMen
dc.identifier.doihttps://doi.org/10.1016/j.pnsc.2020.12.007
dc.description.statusPeer revieweden


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