Full metadata record
DC Field | Value | Language |
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dc.contributor.author | Jung, JH[Jung, Jong Hoon] | ko |
dc.contributor.author | Chen, CY[Chen, Chih-Yen] | ko |
dc.contributor.author | Wu, WW[Wu, Wen-Wei] | ko |
dc.contributor.author | Hong, JI[Hong, Jung-Il] | ko |
dc.contributor.author | Yun, BK[Yun, Byung Kil] | ko |
dc.contributor.author | Zhou, YS[Zhou, Yusheng] | ko |
dc.contributor.author | Lee, N[Lee, Nuri] | ko |
dc.contributor.author | Jo, W[Jo, William] | ko |
dc.contributor.author | Chen, LJ[Chen, Lih-Juann] | ko |
dc.contributor.author | Chou, LJ[Chou, Li-Jen] | ko |
dc.contributor.author | Wang, ZL[Wang, Zhong Lin] | ko |
dc.date.available | 2017-07-11T06:52:38Z | - |
dc.date.created | 2017-04-10 | - |
dc.date.issued | 2012-10-25 | - |
dc.identifier.citation | Journal of Physical Chemistry C, v.116, no.42, pp.22261 - 22265 | - |
dc.identifier.issn | 1932-7447 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11750/3322 | - |
dc.description.abstract | We have monitored the phase transformation from a Sandia octahedral molecular sieve Na 2Nb 2O 6-H 2O to a piezoelectric NaNbO 3 nanowire through in situ X-ray diffraction (XRD) and transmission electron microscopy (TEM) measurements at high temperatures. After dehydration at 288 °C, the Na 2Nb 2O 6-H 2O becomes significantly destabilized and transforms into NaNbO 3 with the increase of time. The phase transformation time is exponentially proportional to the inverse of temperature, for example, ∼10 5 s at 300 °C and ∼10 1 s at 500 °C, and follows an Arrhenius equation with the activation energy of 2.0 eV. Real time TEM investigation directly reveals that the phase transformation occurs through a thermally excited atomic rearrangement due to the small difference of Gibbs free energy between two phases. This work may provide a clue of kinetic control for the development of high piezoelectric lead-free alkaline niobates and a deep insight for the crystallization of oxide nanostructures during a hydrothermal process. © 2012 American Chemical Society. | - |
dc.publisher | American Chemical Society | - |
dc.subject | Activation Energy | - |
dc.subject | Arrhenius Equation | - |
dc.subject | Atomic Rearrangements | - |
dc.subject | Dehydration | - |
dc.subject | High Temperature | - |
dc.subject | Hydrothermal Process | - |
dc.subject | In-Situ | - |
dc.subject | In-Situ Observations | - |
dc.subject | Kinetic Control | - |
dc.subject | Lead-Free | - |
dc.subject | Lead Oxide | - |
dc.subject | Molecular Sieves | - |
dc.subject | Nanowires | - |
dc.subject | Niobates | - |
dc.subject | Niobium | - |
dc.subject | Niobium Compounds | - |
dc.subject | Octahedral Molecular Sieves | - |
dc.subject | Oxide Nanostructures | - |
dc.subject | Phase Transitions | - |
dc.subject | Piezoelectricity | - |
dc.subject | Real-Time | - |
dc.subject | Sodium | - |
dc.subject | Transmission Electron Microscopy | - |
dc.subject | Transmission Electron Microscopy Tem | - |
dc.subject | X Ray Diffraction | - |
dc.title | In Situ Observation of Dehydration-Induced Phase Transformation from Na2Nb2O6-H2O to NaNbO3 | - |
dc.type | Article | - |
dc.identifier.doi | 10.1021/jp308289r | - |
dc.identifier.wosid | 000310121000019 | - |
dc.identifier.scopusid | 2-s2.0-84867876634 | - |
dc.type.local | Article(Overseas) | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.contributor.nonIdAuthor | Jung, JH[Jung, Jong Hoon] | - |
dc.contributor.nonIdAuthor | Chen, CY[Chen, Chih-Yen] | - |
dc.contributor.nonIdAuthor | Wu, WW[Wu, Wen-Wei] | - |
dc.contributor.nonIdAuthor | Yun, BK[Yun, Byung Kil] | - |
dc.contributor.nonIdAuthor | Zhou, YS[Zhou, Yusheng] | - |
dc.contributor.nonIdAuthor | Lee, N[Lee, Nuri] | - |
dc.contributor.nonIdAuthor | Jo, W[Jo, William] | - |
dc.contributor.nonIdAuthor | Chen, LJ[Chen, Lih-Juann] | - |
dc.contributor.nonIdAuthor | Chou, LJ[Chou, Li-Jen] | - |
dc.contributor.nonIdAuthor | Wang, ZL[Wang, Zhong Lin] | - |
dc.identifier.citationVolume | 116 | - |
dc.identifier.citationNumber | 42 | - |
dc.identifier.citationStartPage | 22261 | - |
dc.identifier.citationEndPage | 22265 | - |
dc.identifier.citationTitle | Journal of Physical Chemistry C | - |
dc.type.journalArticle | Article | - |
dc.contributor.affiliatedAuthor | Hong, JI[Hong, Jung-Il] | - |
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