{"title":"有机溶剂中硝酸包合钠石料的合成","authors":"M. Fechtelkord, B. Posnatzki, J.-Chr. Buhl","doi":"10.1016/S0144-2449(97)00098-5","DOIUrl":null,"url":null,"abstract":"<div><p>Hydrothermal synthesis of sodalite has been investigated in the system NaOCH<sub>3</sub>-2SiO<sub>3</sub>-Al<sub>2</sub>O<sub>3</sub>-NaNO<sub>3</sub>-(CH<sub>3</sub>OH, C<sub>5</sub>H<sub>11</sub>OH) at temperatures of 423 K and 473 K. For the first time the organic solvents methanol or pentanol together with sodium methylate as base were used besides common inorganic educts as Si/Al source and sodium nitrate salt. The sodalites have been characterized by X-ray powder diffraction, as well as by <sup>29</sup>Si, <sup>23</sup>Na MAS NMR, and <sup>23</sup>Na DOR NMR measurements. IR-FT spectroscopy shows the successful enclathration of nitrate anions in the β-cages of sodalite. Reaction products of the solvent/base have been identified by <sup>1</sup>H <sup>13</sup>C CPMAS NMR and <sup>1</sup>H MAS NMR. Scanning-electron micrographs show crystals larger than 15 μm grown at 473 K in pentanol.</p></div>","PeriodicalId":23983,"journal":{"name":"Zeolites","volume":"19 5","pages":"Pages 334-342"},"PeriodicalIF":0.0000,"publicationDate":"1997-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0144-2449(97)00098-5","citationCount":"10","resultStr":"{\"title\":\"On the synthesis of nitrate enclathrated sodalite in organic solvents\",\"authors\":\"M. Fechtelkord, B. Posnatzki, J.-Chr. Buhl\",\"doi\":\"10.1016/S0144-2449(97)00098-5\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Hydrothermal synthesis of sodalite has been investigated in the system NaOCH<sub>3</sub>-2SiO<sub>3</sub>-Al<sub>2</sub>O<sub>3</sub>-NaNO<sub>3</sub>-(CH<sub>3</sub>OH, C<sub>5</sub>H<sub>11</sub>OH) at temperatures of 423 K and 473 K. For the first time the organic solvents methanol or pentanol together with sodium methylate as base were used besides common inorganic educts as Si/Al source and sodium nitrate salt. The sodalites have been characterized by X-ray powder diffraction, as well as by <sup>29</sup>Si, <sup>23</sup>Na MAS NMR, and <sup>23</sup>Na DOR NMR measurements. IR-FT spectroscopy shows the successful enclathration of nitrate anions in the β-cages of sodalite. Reaction products of the solvent/base have been identified by <sup>1</sup>H <sup>13</sup>C CPMAS NMR and <sup>1</sup>H MAS NMR. Scanning-electron micrographs show crystals larger than 15 μm grown at 473 K in pentanol.</p></div>\",\"PeriodicalId\":23983,\"journal\":{\"name\":\"Zeolites\",\"volume\":\"19 5\",\"pages\":\"Pages 334-342\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1997-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/S0144-2449(97)00098-5\",\"citationCount\":\"10\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Zeolites\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0144244997000985\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Zeolites","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0144244997000985","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 10
摘要
以NaOCH3-2SiO3-Al2O3-NaNO3-(CH3OH, C5H11OH)为体系，在423 K和473 K条件下进行了水热合成钠盐的研究。除常用无机溶剂硅铝源和硝酸钠外，首次采用有机溶剂甲醇或戊醇和甲基化钠作为碱。通过x射线粉末衍射以及29Si, 23Na MAS NMR和23Na DOR NMR测量对钠盐进行了表征。红外-傅立叶变换光谱显示硝酸根阴离子在钠盐的β笼中成功笼化。溶剂/碱的反应产物经1H - 13C CPMAS NMR和1H - MAS NMR鉴定。扫描电镜显示，在473 K的正戊醇中生长的晶体大于15 μm。
On the synthesis of nitrate enclathrated sodalite in organic solvents
Hydrothermal synthesis of sodalite has been investigated in the system NaOCH3-2SiO3-Al2O3-NaNO3-(CH3OH, C5H11OH) at temperatures of 423 K and 473 K. For the first time the organic solvents methanol or pentanol together with sodium methylate as base were used besides common inorganic educts as Si/Al source and sodium nitrate salt. The sodalites have been characterized by X-ray powder diffraction, as well as by 29Si, 23Na MAS NMR, and 23Na DOR NMR measurements. IR-FT spectroscopy shows the successful enclathration of nitrate anions in the β-cages of sodalite. Reaction products of the solvent/base have been identified by 1H 13C CPMAS NMR and 1H MAS NMR. Scanning-electron micrographs show crystals larger than 15 μm grown at 473 K in pentanol.
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