Pressure induced water insertion in the defect pyrochlore nh/sub 4/nbwo/sub 6/

Detalhes bibliográficos
Autor(a) principal: Perottoni, Claudio Antonio
Data de Publicação: 1997
Outros Autores: Jornada, Joao Alziro Herz da
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/100087
Resumo: A sudden and reversible increase of about 5% in the unit cell volume of ammonium tungstoniobate at pressures around 2.5 GPa was observed with pressure transmitting media containing water. This behavior was attributed to high pressure water insertion from the pressure media into the host structure of NH₄NbWO₆. The effects of different water contents of the pressure transmitting medium on the high pressure behavior of NH₄NbWO₆ were studied by high pressure energy dispersive x-ray diffraction and by Raman spectroscopy of the ammonium v₂ bending mode. The water insertion occurs with no apparent change in the pyrochlore framework, and a preliminary analysis indicates a partial occupation of the site 16e (F43m) by the oxygen of the water molecules.
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spelling Perottoni, Claudio AntonioJornada, Joao Alziro Herz da2014-08-12T02:10:20Z19970031-9007http://hdl.handle.net/10183/100087000192472A sudden and reversible increase of about 5% in the unit cell volume of ammonium tungstoniobate at pressures around 2.5 GPa was observed with pressure transmitting media containing water. This behavior was attributed to high pressure water insertion from the pressure media into the host structure of NH₄NbWO₆. The effects of different water contents of the pressure transmitting medium on the high pressure behavior of NH₄NbWO₆ were studied by high pressure energy dispersive x-ray diffraction and by Raman spectroscopy of the ammonium v₂ bending mode. The water insertion occurs with no apparent change in the pyrochlore framework, and a preliminary analysis indicates a partial occupation of the site 16e (F43m) by the oxygen of the water molecules.application/pdfengPhysical Review Letters. Woodbury. Vol. 78, no. 15 (Apr. 1997), p. 2991-2994Física da matéria condensadaAltas pressõesDifração de raios XEspectroscopia RamanMoléculasPressure induced water insertion in the defect pyrochlore nh/sub 4/nbwo/sub 6/Estrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000192472.pdf000192472.pdfTexto completo (inglês)application/pdf86683http://www.lume.ufrgs.br/bitstream/10183/100087/1/000192472.pdf76305855f906fcd46d82ca9f6c8e0772MD51TEXT000192472.pdf.txt000192472.pdf.txtExtracted Texttext/plain16738http://www.lume.ufrgs.br/bitstream/10183/100087/2/000192472.pdf.txt1c9299fa7fb4e7b95e2319cc3b6f0363MD5210183/1000872022-04-20 04:53:26.740358oai:www.lume.ufrgs.br:10183/100087Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2022-04-20T07:53:26Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Pressure induced water insertion in the defect pyrochlore nh/sub 4/nbwo/sub 6/
title Pressure induced water insertion in the defect pyrochlore nh/sub 4/nbwo/sub 6/
spellingShingle Pressure induced water insertion in the defect pyrochlore nh/sub 4/nbwo/sub 6/
Perottoni, Claudio Antonio
Física da matéria condensada
Altas pressões
Difração de raios X
Espectroscopia Raman
Moléculas
title_short Pressure induced water insertion in the defect pyrochlore nh/sub 4/nbwo/sub 6/
title_full Pressure induced water insertion in the defect pyrochlore nh/sub 4/nbwo/sub 6/
title_fullStr Pressure induced water insertion in the defect pyrochlore nh/sub 4/nbwo/sub 6/
title_full_unstemmed Pressure induced water insertion in the defect pyrochlore nh/sub 4/nbwo/sub 6/
title_sort Pressure induced water insertion in the defect pyrochlore nh/sub 4/nbwo/sub 6/
author Perottoni, Claudio Antonio
author_facet Perottoni, Claudio Antonio
Jornada, Joao Alziro Herz da
author_role author
author2 Jornada, Joao Alziro Herz da
author2_role author
dc.contributor.author.fl_str_mv Perottoni, Claudio Antonio
Jornada, Joao Alziro Herz da
dc.subject.por.fl_str_mv Física da matéria condensada
Altas pressões
Difração de raios X
Espectroscopia Raman
Moléculas
topic Física da matéria condensada
Altas pressões
Difração de raios X
Espectroscopia Raman
Moléculas
description A sudden and reversible increase of about 5% in the unit cell volume of ammonium tungstoniobate at pressures around 2.5 GPa was observed with pressure transmitting media containing water. This behavior was attributed to high pressure water insertion from the pressure media into the host structure of NH₄NbWO₆. The effects of different water contents of the pressure transmitting medium on the high pressure behavior of NH₄NbWO₆ were studied by high pressure energy dispersive x-ray diffraction and by Raman spectroscopy of the ammonium v₂ bending mode. The water insertion occurs with no apparent change in the pyrochlore framework, and a preliminary analysis indicates a partial occupation of the site 16e (F43m) by the oxygen of the water molecules.
publishDate 1997
dc.date.issued.fl_str_mv 1997
dc.date.accessioned.fl_str_mv 2014-08-12T02:10:20Z
dc.type.driver.fl_str_mv Estrangeiro
info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/100087
dc.identifier.issn.pt_BR.fl_str_mv 0031-9007
dc.identifier.nrb.pt_BR.fl_str_mv 000192472
identifier_str_mv 0031-9007
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url http://hdl.handle.net/10183/100087
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Physical Review Letters. Woodbury. Vol. 78, no. 15 (Apr. 1997), p. 2991-2994
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eu_rights_str_mv openAccess
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instname_str Universidade Federal do Rio Grande do Sul (UFRGS)
instacron_str UFRGS
institution UFRGS
reponame_str Repositório Institucional da UFRGS
collection Repositório Institucional da UFRGS
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