Gel-Free Secondary Growth of Uniformly Oriented Silica MFI Zeolite Films and Application for Xylene Separation

Silicate precursor nanoparticles are complexed with 1,2-dihydroxybenzene and then gradually released to feed the secondary growth of b-oriented MFI zeolites.

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Uniformlya-Oriented MFI Zeolite Films by Secondary Growth

Angewandte Chemie International Edition ◽

10.1002/anie.200503011 ◽

2006 ◽

Vol 45 (7) ◽

pp. 1154-1158 ◽

Cited By ~ 109

Author(s):

Jungkyu Choi ◽

Shubhajit Ghosh ◽

Zhiping Lai ◽

Michael Tsapatsis

Keyword(s):

Secondary Growth ◽

Mfi Zeolite ◽

Zeolite Films

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Uniformlya-Oriented MFI Zeolite Films by Secondary Growth

Angewandte Chemie ◽

10.1002/ange.200503011 ◽

2006 ◽

Vol 118 (7) ◽

pp. 1172-1176 ◽

Cited By ~ 36

Author(s):

Jungkyu Choi ◽

Shubhajit Ghosh ◽

Zhiping Lai ◽

Michael Tsapatsis

Keyword(s):

Secondary Growth ◽

Mfi Zeolite ◽

Zeolite Films

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Effects of composition and phonon scattering mechanisms on thermal transport in MFI zeolite films

Journal of Applied Physics ◽

10.1063/1.2776006 ◽

2007 ◽

Vol 102 (5) ◽

pp. 053523 ◽

Cited By ~ 10

Author(s):

Yeny Hudiono ◽

Abraham Greenstein ◽

Carine Saha-Kuete ◽

Brandon Olson ◽

Samuel Graham ◽

...

Keyword(s):

Thermal Transport ◽

Phonon Scattering ◽

Mfi Zeolite ◽

Scattering Mechanisms ◽

Zeolite Films

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Enhanced compactness of oriented MFI zeolite films by heat treatment of seed layer

Ceramics International ◽

10.1016/j.ceramint.2018.08.361 ◽

2018 ◽

Vol 44 (18) ◽

pp. 22352-22356 ◽

Cited By ~ 3

Author(s):

Ruilan Xu ◽

Yong Peng

Keyword(s):

Heat Treatment ◽

Seed Layer ◽

Mfi Zeolite ◽

Zeolite Films

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Formation Process of Columnar Grown (101)-Oriented Silicalite-1 Membrane and Its Separation Property for Xylene Isomer

Crystals ◽

10.3390/cryst10100949 ◽

2020 ◽

Vol 10 (10) ◽

pp. 949

Author(s):

Motomu Sakai ◽

Takuya Kaneko ◽

Yukichi Sasaki ◽

Miyuki Sekigawa ◽

Masahiko Matsukata

Keyword(s):

Secondary Growth ◽

Microscopic Analysis ◽

Separation Performance ◽

Membrane Thickness ◽

Alumina Support ◽

Separation Factors ◽

Growth Method ◽

Thin Part ◽

Xylene Separation ◽

Xylene Isomer

Silicalite-1 membrane was prepared on an outer surface of a tubular α-alumina support by a secondary growth method. Changes of defect amount and crystallinity during secondary growth were carefully observed. The defect-less well-crystallized silicalite-1 membrane was obtained after 7-days crystallization at 373 K. The silicalite-1 membrane became (h0l)-orientation with increasing membrane thickness, possibly because the orientation was attributable to “evolutionally selection”. The (h0l)-oriented silicalite-1 membrane showed high p-xylene separation performance for a xylene isomer mixture (o-/m-/p-xylene = 0.4/0.4/0.4 kPa). The p-xylene permeance through the membrane was 6.52 × 10−8 mol m−2 s−1 Pa−1 with separation factors αp/o, αp/m of more than 100 at 373 K. As a result of microscopic analysis, it was suggested that a very thin part in the vicinity of surface played as effective separation layer and could contribute to high permeation performance.

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