共查询到20条相似文献,搜索用时 15 毫秒
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Growth of High‐Quality,Thickness‐Reduced Zeolite Membranes towards N2/CH4 Separation Using High‐Aspect‐Ratio Seeds 下载免费PDF全文
Yi Huang Lei Wang Zhuonan Song Shiguang Li Miao Yu 《Angewandte Chemie (International ed. in English)》2015,54(37):10843-10847
Greatly improved zeolite membranes were prepared by using high‐aspect‐ratio zeolite seeds. Slice‐shaped seeds with a high aspect ratio (AR) facilitated growth of thinner continuous SAPO‐34 membranes of much higher quality. These membranes showed N2 permeances as high as (2.87±0.15)×10?7 mol m?2 s?1 Pa?1 at 22 °C while maintaining a decent N2/CH4 selectivity (9–11.2 for equimolar mixture). On the basis of these thinner high‐quality SAPO‐34 membranes, fine‐tuning the local crystal structure by incorporating more silicon further increased the N2 permeance by 1.4 times without sacrificing the N2/CH4 selectivity. We expect that application of large AR zeolite seeds might be a viable strategy to grow thin high‐quality zeolite membranes. In addition, fine‐tuning of the crystal structure by changing the crystal composition might be a feasible way for further improving the separating performance of high‐quality zeolite membranes. 相似文献
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Yi Huang Lei Wang Zhuonan Song Shiguang Li Miao Yu 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2015,127(37):10993-10997
Greatly improved zeolite membranes were prepared by using high‐aspect‐ratio zeolite seeds. Slice‐shaped seeds with a high aspect ratio (AR) facilitated growth of thinner continuous SAPO‐34 membranes of much higher quality. These membranes showed N2 permeances as high as (2.87±0.15)×10−7 mol m−2 s−1 Pa−1 at 22 °C while maintaining a decent N2/CH4 selectivity (9–11.2 for equimolar mixture). On the basis of these thinner high‐quality SAPO‐34 membranes, fine‐tuning the local crystal structure by incorporating more silicon further increased the N2 permeance by 1.4 times without sacrificing the N2/CH4 selectivity. We expect that application of large AR zeolite seeds might be a viable strategy to grow thin high‐quality zeolite membranes. In addition, fine‐tuning of the crystal structure by changing the crystal composition might be a feasible way for further improving the separating performance of high‐quality zeolite membranes. 相似文献
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Han Zhang Prof. Qiang Xiao Prof. Xianghai Guo Prof. Najun Li Prashant Kumar Neel Rangnekar Mi Young Jeon Prof. Shaeel Al‐Thabaiti Prof. Katabathini Narasimharao Prof. Sulaiman Nasir Basahel Prof. Berna Topuz Frank J. Onorato Prof. Christopher W. Macosko Prof. K. Andre Mkhoyan Prof. Michael Tsapatsis 《Angewandte Chemie (International ed. in English)》2016,55(25):7009-7009
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Inside Back Cover: High‐Conductivity Two‐Dimensional Polyaniline Nanosheets Developed on Ice Surfaces (Angew. Chem. Int. Ed. 36/2015) 下载免费PDF全文
Il Young Choi Joungphil Lee Hyungmin Ahn Jinho Lee Prof. Hee Cheul Choi Prof. Moon Jeong Park 《Angewandte Chemie (International ed. in English)》2015,54(36):10681-10681
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Inside Back Cover: Programmed Photodegradation of Polymeric/Oligomeric Materials Derived from Renewable Bioresources (Angew. Chem. Int. Ed. 4/2015) 下载免费PDF全文
Dr. Saravanakumar Rajendran Ramya Raghunathan Dr. Ivan Hevus Dr. Retheesh Krishnan Dr. Angel Ugrinov Prof. Dr. Mukund P. Sibi Prof. Dr. Dean C. Webster Prof. Dr. Jayaraman Sivaguru 《Angewandte Chemie (International ed. in English)》2015,54(4):1369-1369
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Back Cover: A High‐Pressure NMR Probe for Aqueous Geochemistry (Angew. Chem. Int. Ed. 37/2014) 下载免费PDF全文
Dr. Brent G. Pautler Christopher A. Colla Dr. Rene L. Johnson Peter Klavins Dr. Stephen J. Harley Dr. C. André Ohlin Prof. Dimitri A. Sverjensky Dr. Jeffrey H. Walton Prof. William H. Casey 《Angewandte Chemie (International ed. in English)》2014,53(37):9962-9962