I. V. Odynets, O. M. Doroshenko, A. A. Babaryk, N. Slobodyanik, S. Khainakov, V. Baumer
{"title":"Na2O-P2O5-Ta2O5-MoO3助熔剂体系中磷酸钽酸盐的合成及结构研究","authors":"I. V. Odynets, O. M. Doroshenko, A. A. Babaryk, N. Slobodyanik, S. Khainakov, V. Baumer","doi":"10.1109/OMEE.2012.6464779","DOIUrl":null,"url":null,"abstract":"The complex sodium-tantalum phosphates (Na<inf>2</inf>Ta<inf>6</inf>P<inf>4</inf>O<inf>26</inf>, Na<inf>3</inf>Ta<inf>7</inf>P<inf>4</inf>O<inf>29</inf>, Na<inf>4</inf>Ta<inf>8</inf>P<inf>4</inf>O<inf>32</inf>) have been synthesized using the flux method in the quasi-quaternary system Na<inf>2</inf>O-P<inf>2</inf>O<inf>5</inf>-Ta<inf>2</inf>O<inf>5</inf>-MoO<inf>3</inf>. These compounds are isostructural with family of sodium-niobium phosphates Na<inf>x</inf>Nb<inf>2m</inf>P<inf>4</inf>O<inf>6m+8</inf> and tightly related to monophosphate tungsten bronzes (MPTB<inf>p</inf>) with pentagonal-shaped tunnels. The structure of these phosphates has been investigated by X-ray powder and single crystal diffraction. Their three-dimensional frameworks consist of slabs of corner-shared TaO<inf>6</inf> distorted octahedra connected via isolated PO<inf>4</inf> tetrahedra and delimit pentagonal tunnels running along c, where Na atoms are located. The solid state band gap measurements gave reasonable prospects for its photocatalytic activity.","PeriodicalId":6332,"journal":{"name":"2012 IEEE International Conference on Oxide Materials for Electronic Engineering (OMEE)","volume":"43 1","pages":"107-108"},"PeriodicalIF":0.0000,"publicationDate":"2012-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Synthesis and structural investigations of tantalates phosphates in the flux system Na2O-P2O5-Ta2O5-MoO3\",\"authors\":\"I. V. Odynets, O. M. Doroshenko, A. A. Babaryk, N. Slobodyanik, S. Khainakov, V. Baumer\",\"doi\":\"10.1109/OMEE.2012.6464779\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The complex sodium-tantalum phosphates (Na<inf>2</inf>Ta<inf>6</inf>P<inf>4</inf>O<inf>26</inf>, Na<inf>3</inf>Ta<inf>7</inf>P<inf>4</inf>O<inf>29</inf>, Na<inf>4</inf>Ta<inf>8</inf>P<inf>4</inf>O<inf>32</inf>) have been synthesized using the flux method in the quasi-quaternary system Na<inf>2</inf>O-P<inf>2</inf>O<inf>5</inf>-Ta<inf>2</inf>O<inf>5</inf>-MoO<inf>3</inf>. These compounds are isostructural with family of sodium-niobium phosphates Na<inf>x</inf>Nb<inf>2m</inf>P<inf>4</inf>O<inf>6m+8</inf> and tightly related to monophosphate tungsten bronzes (MPTB<inf>p</inf>) with pentagonal-shaped tunnels. The structure of these phosphates has been investigated by X-ray powder and single crystal diffraction. Their three-dimensional frameworks consist of slabs of corner-shared TaO<inf>6</inf> distorted octahedra connected via isolated PO<inf>4</inf> tetrahedra and delimit pentagonal tunnels running along c, where Na atoms are located. The solid state band gap measurements gave reasonable prospects for its photocatalytic activity.\",\"PeriodicalId\":6332,\"journal\":{\"name\":\"2012 IEEE International Conference on Oxide Materials for Electronic Engineering (OMEE)\",\"volume\":\"43 1\",\"pages\":\"107-108\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2012-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2012 IEEE International Conference on Oxide Materials for Electronic Engineering (OMEE)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/OMEE.2012.6464779\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2012 IEEE International Conference on Oxide Materials for Electronic Engineering (OMEE)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/OMEE.2012.6464779","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Synthesis and structural investigations of tantalates phosphates in the flux system Na2O-P2O5-Ta2O5-MoO3
The complex sodium-tantalum phosphates (Na2Ta6P4O26, Na3Ta7P4O29, Na4Ta8P4O32) have been synthesized using the flux method in the quasi-quaternary system Na2O-P2O5-Ta2O5-MoO3. These compounds are isostructural with family of sodium-niobium phosphates NaxNb2mP4O6m+8 and tightly related to monophosphate tungsten bronzes (MPTBp) with pentagonal-shaped tunnels. The structure of these phosphates has been investigated by X-ray powder and single crystal diffraction. Their three-dimensional frameworks consist of slabs of corner-shared TaO6 distorted octahedra connected via isolated PO4 tetrahedra and delimit pentagonal tunnels running along c, where Na atoms are located. The solid state band gap measurements gave reasonable prospects for its photocatalytic activity.
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