{"title":"铝改性对SBA-15负载ptsn基丙烷脱氢催化剂性能的影响","authors":"Yongzheng Duan, Yuming Zhou, Yiwei Zhang, Xiaoli Sheng, Shijian Zhou, Zewu Zhang","doi":"10.1016/S1003-9953(11)60356-3","DOIUrl":null,"url":null,"abstract":"<div><p>The catalytic properties of PtSn-based catalysts supported on siliceous SBA-15 and Al-modified SBA-15, such as Al-incorporated SBA-15 (A1SBA-15) and alumina-modified SBA-15 (AI<sub>2</sub>O<sub>3</sub>/SBA-15), for propane dehydrogenation were investigated. AI<sub>2</sub>O<sub>3</sub>/SBA-15 was prepared either by an impregnation method using aluminum nitrate aqueous solution, or by the treatment of SBA-15 with a Al(OC<sub>3</sub>H<sub>7</sub>)<sub>3</sub> solution in anhydrous toluene. N<sub>2</sub>-physisorption, FT-IR spectroscopy, solid-state <sup>27</sup>Al MAS NMR spectroscopy, hydrogen chemisorption, XRF, NH<sub>3</sub> temperature-programmed desorption, X-ray photoelectron spectroscopy and TPO were used to characterize these samples. Among these catalysts, the PtSn-based catalyst supported on AI<sub>2</sub>O<sub>3</sub>/SBA-15, which was grafted with Al(OC<sub>3</sub>H<sub>7</sub>)<sub>3</sub>, exhibited the best catalytic performance in terms of activity and stability The possible reason was due to the high Pt metal dispersion and/or the strong interactions among Pt, Sn, and the support.</p></div>","PeriodicalId":56116,"journal":{"name":"Journal of Natural Gas Chemistry","volume":"21 2","pages":"Pages 207-214"},"PeriodicalIF":0.0000,"publicationDate":"2012-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1003-9953(11)60356-3","citationCount":"20","resultStr":"{\"title\":\"Effect of aluminum modification on catalytic properties of PtSn-based catalysts supported on SBA-15 for propane dehydrogenation\",\"authors\":\"Yongzheng Duan, Yuming Zhou, Yiwei Zhang, Xiaoli Sheng, Shijian Zhou, Zewu Zhang\",\"doi\":\"10.1016/S1003-9953(11)60356-3\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The catalytic properties of PtSn-based catalysts supported on siliceous SBA-15 and Al-modified SBA-15, such as Al-incorporated SBA-15 (A1SBA-15) and alumina-modified SBA-15 (AI<sub>2</sub>O<sub>3</sub>/SBA-15), for propane dehydrogenation were investigated. AI<sub>2</sub>O<sub>3</sub>/SBA-15 was prepared either by an impregnation method using aluminum nitrate aqueous solution, or by the treatment of SBA-15 with a Al(OC<sub>3</sub>H<sub>7</sub>)<sub>3</sub> solution in anhydrous toluene. N<sub>2</sub>-physisorption, FT-IR spectroscopy, solid-state <sup>27</sup>Al MAS NMR spectroscopy, hydrogen chemisorption, XRF, NH<sub>3</sub> temperature-programmed desorption, X-ray photoelectron spectroscopy and TPO were used to characterize these samples. Among these catalysts, the PtSn-based catalyst supported on AI<sub>2</sub>O<sub>3</sub>/SBA-15, which was grafted with Al(OC<sub>3</sub>H<sub>7</sub>)<sub>3</sub>, exhibited the best catalytic performance in terms of activity and stability The possible reason was due to the high Pt metal dispersion and/or the strong interactions among Pt, Sn, and the support.</p></div>\",\"PeriodicalId\":56116,\"journal\":{\"name\":\"Journal of Natural Gas Chemistry\",\"volume\":\"21 2\",\"pages\":\"Pages 207-214\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2012-03-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/S1003-9953(11)60356-3\",\"citationCount\":\"20\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Natural Gas Chemistry\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1003995311603563\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Natural Gas Chemistry","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1003995311603563","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 20
摘要
研究了硅质SBA-15和al改性SBA-15负载的ptsn基催化剂，如al掺入SBA-15 (A1SBA-15)和氧化铝改性SBA-15 (AI2O3/SBA-15)对丙烷脱氢的催化性能。用硝酸铝水溶液浸渍法制备AI2O3/SBA-15，用Al(OC3H7)3溶液在无水甲苯中处理SBA-15。利用n2物理吸附、FT-IR光谱、固态27Al MAS NMR光谱、氢化学吸附、XRF、NH3程序升温解吸、x射线光电子能谱和TPO对样品进行表征。其中，以Al(OC3H7)3接枝的AI2O3/SBA-15为载体的ptsn基催化剂在活性和稳定性方面表现出最好的催化性能，这可能是由于Pt金属的高度分散和/或Pt、Sn与载体之间的强相互作用所致。
Effect of aluminum modification on catalytic properties of PtSn-based catalysts supported on SBA-15 for propane dehydrogenation
The catalytic properties of PtSn-based catalysts supported on siliceous SBA-15 and Al-modified SBA-15, such as Al-incorporated SBA-15 (A1SBA-15) and alumina-modified SBA-15 (AI2O3/SBA-15), for propane dehydrogenation were investigated. AI2O3/SBA-15 was prepared either by an impregnation method using aluminum nitrate aqueous solution, or by the treatment of SBA-15 with a Al(OC3H7)3 solution in anhydrous toluene. N2-physisorption, FT-IR spectroscopy, solid-state 27Al MAS NMR spectroscopy, hydrogen chemisorption, XRF, NH3 temperature-programmed desorption, X-ray photoelectron spectroscopy and TPO were used to characterize these samples. Among these catalysts, the PtSn-based catalyst supported on AI2O3/SBA-15, which was grafted with Al(OC3H7)3, exhibited the best catalytic performance in terms of activity and stability The possible reason was due to the high Pt metal dispersion and/or the strong interactions among Pt, Sn, and the support.
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