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Polymorphic and morphological transformation during the transition from a propagating band to static bands in the nickel hydroxide-ammonia liesegang system

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dc.contributor.author Al-Ghoul M.
dc.contributor.author Ammar M.
dc.contributor.editor
dc.date 2011
dc.date.accessioned 2017-10-03T15:45:27Z
dc.date.available 2017-10-03T15:45:27Z
dc.date.issued 2011
dc.identifier 10.4028/www.scientific.net/DDF.312-315.800
dc.identifier.isbn 9.7830378512e+12
dc.identifier.issn 10120386
dc.identifier.uri http://hdl.handle.net/10938/12650
dc.description.abstract We present an experimental study of the Ni+2-Ni(OH) 2-NH3 reaction-diffusion system in a gel (agar). The system, which consists of a gel containing an inner electrolyte Ni+2 and a diffusing outer electrolyte (NH3-OH-), exhibits pulse propagation due to the concomitant precipitation reaction between Ni +2 and hydroxide ions and re-dissolution due to ammonia. During the propagation of the pulse, a transition to Liesegang banding is shown to take place. The bands are characterized by IR and XRD and are shown to consist of the polymorph β-Ni(OH)2 whereas the pulse contains the other polymorph α-Ni(OH)2. SEM measurements also reveal a morphological change accompanying the polymorphic transition between the pulse and the bands and uncovering an Ostwald ripening mechanism. © (2011) Trans Tech Publications.
dc.format.extent
dc.format.extent Pages: (800-805)
dc.language English
dc.publisher STAFA-ZURICH
dc.relation.ispartof Publication Name: Defect and Diffusion Forum; Conference Title: 6th International Conference on Diffusion in Solids and Liquids, DSL-2010; Conference Date: 5 July 2010 through 7 July 2010; Conference Location: Paris; Publication Year: 2011; part 1,2; Pages: (800-805);
dc.relation.ispartofseries
dc.relation.uri
dc.source Scopus
dc.subject.other
dc.title Polymorphic and morphological transformation during the transition from a propagating band to static bands in the nickel hydroxide-ammonia liesegang system
dc.type Conference Paper
dc.contributor.affiliation Al-Ghoul, M., Department of Chemistry, American University of Beirut, Beirut, Lebanon, Center for Advanced Mathematical Sciences, American University of Beirut, Beirut, Lebanon
dc.contributor.affiliation Ammar, M., Department of Chemistry, American University of Beirut, Beirut, Lebanon
dc.contributor.authorAddress Al-Ghoul, M.; Department of Chemistry, American University of Beirut, Beirut, Lebanon; email: mazen.ghoul@aub.edu.lb
dc.contributor.authorCorporate University: American University of Beirut; Faculty: Faculty of Arts and Sciences; Department: Chemistry;
dc.contributor.authorDepartment Chemistry
dc.contributor.authorDivision
dc.contributor.authorEmail mazen.ghoul@aub.edu.lb; manal.ammar@aub.edu.lb
dc.contributor.faculty Faculty of Arts and Sciences
dc.contributor.authorInitials Al-Ghoul, M
dc.contributor.authorInitials Ammar, M
dc.contributor.authorOrcidID
dc.contributor.authorReprintAddress Al-Ghoul, M (reprint author), Amer Univ Beirut, Dept Chem, Beirut, Lebanon.
dc.contributor.authorResearcherID
dc.contributor.authorUniversity American University of Beirut
dc.description.cited
dc.description.citedCount
dc.description.citedTotWOSCount 1
dc.description.citedWOSCount 1
dc.format.extentCount 6
dc.identifier.articleNo
dc.identifier.coden DDAFE
dc.identifier.pubmedID
dc.identifier.scopusID 79955823839
dc.identifier.url
dc.publisher.address LAUBLSRUTISTR 24, CH-8717 STAFA-ZURICH, SWITZERLAND
dc.relation.ispartofConference Conference Title: 6th International Conference on Diffusion in Solids and Liquids, DSL-2010 : Conference Date: 5 July 2010 through 7 July 2010 , Conference Location: Paris.
dc.relation.ispartofConferenceCode 84766
dc.relation.ispartofConferenceDate 5 July 2010 through 7 July 2010
dc.relation.ispartofConferenceHosting
dc.relation.ispartofConferenceLoc Paris
dc.relation.ispartofConferenceSponsor
dc.relation.ispartofConferenceTitle 6th International Conference on Diffusion in Solids and Liquids, DSL-2010
dc.relation.ispartofFundingAgency
dc.relation.ispartOfISOAbbr
dc.relation.ispartOfIssue
dc.relation.ispartOfPart 1,2
dc.relation.ispartofPubTitle Defect and Diffusion Forum
dc.relation.ispartofPubTitleAbbr Defect Diffus. Forum
dc.relation.ispartOfSpecialIssue
dc.relation.ispartOfSuppl
dc.relation.ispartOfVolume
dc.source.ID WOS:000297606300136
dc.type.publication Series
dc.subject.otherAuthKeyword Liesegang bands
dc.subject.otherAuthKeyword Nickel hydroxide
dc.subject.otherAuthKeyword Ostwald ripening
dc.subject.otherAuthKeyword Polymorphic transitions
dc.subject.otherAuthKeyword Propagating wave
dc.subject.otherChemCAS
dc.subject.otherIndex Experimental studies
dc.subject.otherIndex Hydroxide ions
dc.subject.otherIndex Inner electrolyte
dc.subject.otherIndex Liesegang
dc.subject.otherIndex Liesegang bands
dc.subject.otherIndex Morphological changes
dc.subject.otherIndex Morphological transformations
dc.subject.otherIndex Nickel hydroxide
dc.subject.otherIndex Nickel hydroxides
dc.subject.otherIndex Ostwald ripening mechanism
dc.subject.otherIndex Outer electrolyte
dc.subject.otherIndex Polymorphic transitions
dc.subject.otherIndex Precipitation reaction
dc.subject.otherIndex Propagating wave
dc.subject.otherIndex Pulse propagation
dc.subject.otherIndex Re-dissolution
dc.subject.otherIndex Reaction diffusion systems
dc.subject.otherIndex SEM
dc.subject.otherIndex XRD
dc.subject.otherIndex Diffusion in solids
dc.subject.otherIndex Dissolution
dc.subject.otherIndex Electrolytes
dc.subject.otherIndex Gels
dc.subject.otherIndex Ostwald ripening
dc.subject.otherIndex Precipitation (chemical)
dc.subject.otherKeywordPlus
dc.subject.otherWOS Chemistry, Physical
dc.subject.otherWOS Materials Science, Multidisciplinary


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