Ryu Abe, Junko N. Kondo, Michikazu Hara, Kazunari Domen
{"title":"由离子交换层状化合物制成的薄膜的微孔结构","authors":"Ryu Abe, Junko N. Kondo, Michikazu Hara, Kazunari Domen","doi":"10.1016/S0968-5677(98)00012-1","DOIUrl":null,"url":null,"abstract":"<div><p>A thin film made of an ion-exchangeable layered compound, K<sub>4</sub>Nb<sub>6</sub>O<sub>17</sub>, was prepared by a novel method. Fine particles of K<sub>4</sub>Nb<sub>6</sub>O<sub>17</sub> obtained by wet-grinding of the powder were coated on a substrate and calcined. Recrystallization of the fine particles at 1073<!--> <!-->K was confirmed by XRD and SEM, and very flat and large crystals with the <em>b</em>-axis perpendicular to the substrate surface were obtained. The obtained thin film had a layered structure and an ion-exchange property similar to that of K<sub>4</sub>Nb<sub>6</sub>O<sub>17</sub> powder. The adsorption of CO was investigated for the thin film calcined at 1073<!--> <!-->K by IR spectroscopy. The initially IR-inactive H<sup>+</sup> species were suggested to be transformed into OH groups as a result of CO adsorption at the interlayer space.</p></div>","PeriodicalId":22050,"journal":{"name":"Supramolecular Science","volume":"5 3","pages":"Pages 229-233"},"PeriodicalIF":0.0000,"publicationDate":"1998-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0968-5677(98)00012-1","citationCount":"5","resultStr":"{\"title\":\"A microporous structure of a thin film made of an ion-exchangeable layered compound\",\"authors\":\"Ryu Abe, Junko N. Kondo, Michikazu Hara, Kazunari Domen\",\"doi\":\"10.1016/S0968-5677(98)00012-1\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>A thin film made of an ion-exchangeable layered compound, K<sub>4</sub>Nb<sub>6</sub>O<sub>17</sub>, was prepared by a novel method. Fine particles of K<sub>4</sub>Nb<sub>6</sub>O<sub>17</sub> obtained by wet-grinding of the powder were coated on a substrate and calcined. Recrystallization of the fine particles at 1073<!--> <!-->K was confirmed by XRD and SEM, and very flat and large crystals with the <em>b</em>-axis perpendicular to the substrate surface were obtained. The obtained thin film had a layered structure and an ion-exchange property similar to that of K<sub>4</sub>Nb<sub>6</sub>O<sub>17</sub> powder. The adsorption of CO was investigated for the thin film calcined at 1073<!--> <!-->K by IR spectroscopy. The initially IR-inactive H<sup>+</sup> species were suggested to be transformed into OH groups as a result of CO adsorption at the interlayer space.</p></div>\",\"PeriodicalId\":22050,\"journal\":{\"name\":\"Supramolecular Science\",\"volume\":\"5 3\",\"pages\":\"Pages 229-233\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1998-07-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/S0968-5677(98)00012-1\",\"citationCount\":\"5\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Supramolecular Science\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0968567798000121\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Supramolecular Science","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0968567798000121","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A microporous structure of a thin film made of an ion-exchangeable layered compound
A thin film made of an ion-exchangeable layered compound, K4Nb6O17, was prepared by a novel method. Fine particles of K4Nb6O17 obtained by wet-grinding of the powder were coated on a substrate and calcined. Recrystallization of the fine particles at 1073 K was confirmed by XRD and SEM, and very flat and large crystals with the b-axis perpendicular to the substrate surface were obtained. The obtained thin film had a layered structure and an ion-exchange property similar to that of K4Nb6O17 powder. The adsorption of CO was investigated for the thin film calcined at 1073 K by IR spectroscopy. The initially IR-inactive H+ species were suggested to be transformed into OH groups as a result of CO adsorption at the interlayer space.
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