Development of intracrystalline mesoporosity in NH4HF2-etched NaY zeolites by surfactant-templating and its effect on toluene adsorption

2020 ◽  
Vol 390 ◽  
pp. 124529 ◽  
Author(s):  
Aihu Feng ◽  
Le Mi ◽  
Yang Yu ◽  
Yunzhen Cao ◽  
Yun Yu ◽  
...  
Keyword(s):  
Surfactant Templating ◽  
Nay Zeolites

Microsized Structures Fabricated with Nanoparticles as Building Blocks

1998 ◽  
Vol 536 ◽  
Author(s):  
Yongchi Tian ◽  
A. D. Dinsmore ◽  
S. B. Qadri ◽  
B. R. Ratna
Keyword(s):  
Radial Growth ◽  
Building Blocks ◽  
Higher Order ◽  
Surfactant Templating ◽  
Order Structures

AbstractHere we report a nanoparticulate route to Y2O3 nanofibers (~50 nm in diameter and a few micrometers in length) and for the radial growth of ZnS spheres (200-800 nm diameter). Well-defined higher order structures are developed upon thermostatically aging the dispersions of monomeric nanocrystals. The shapes of the “macromolecules„ are correlated to primary monomeric nanocrystallites, the growing time and temperature, and surfactant templating agents. It is anticipated that this approach should inspire fabrication of nanoparticulate structures by using primary nanoparticles as monomers.

Ultrafast surfactant-templating of *BEA zeolite: An efficient catalyst for the cracking of polyethylene pyrolysis vapours

2021 ◽  
Vol 412 ◽  
pp. 128566
Author(s):  
Umer Khalil ◽  
Zhendong Liu ◽  
Ce Peng ◽  
Naomichi Hikichi ◽  
Toru Wakihara ◽  
...  
Keyword(s):  
Efficient Catalyst ◽  
Bea Zeolite ◽  
Surfactant Templating

Titania−Sepiolite Nanocomposites Prepared by a Surfactant Templating Colloidal Route

2008 ◽  
Vol 20 (1) ◽  
pp. 84-91 ◽  
Author(s):  
Pilar Aranda ◽  
Robert Kun ◽  
M. Angeles Martín-Luengo ◽  
Sadok Letaïef ◽  
Imre Dékány ◽  
...  
Keyword(s):  
Surfactant Templating

Carbon Nanotube Templated Growth of the Nano-Crystalline NaY Zeolite

2011 ◽  
Vol 194-196 ◽  
pp. 594-597
Author(s):  
Ke Tang ◽  
Xin Hong ◽  
Jin Gang Qi
Keyword(s):  
Structural Characteristics ◽  
Internal Diameter ◽  
X Ray Diffraction ◽  
Nay Zeolite ◽  
Nano Crystalline ◽  
Transmission Electron ◽  
Ir Transmission ◽  
Ft Ir ◽  
Nay Zeolites ◽  
Nanosized Zeolites

FAU-type(NaY) zeolites nanocrystals have been synthesized through crystallization of gel in mesoporous system of carbon nanotubes(CNTS) with a internal diameter of 20~30 nm. Investigation by using X-ray diffraction (XRD), Fourier transform infrared (FT-IR), transmission electron microscope (TEM) shows that the nanocrystals possess the typical nanosized zeolites structural characteristics which is different from those of microsized zeolites.

Synthesis of Cubic Mesoporous Titanium-containing Silica by Mixed Surfactant Templating

2000 ◽  
Vol 16 (05) ◽  
pp. 385-388 ◽  
Author(s):  
Wang Tong-Wen ◽  
◽  
Chen Jing-Lei ◽  
Dai Le-Rong
Keyword(s):  
Mixed Surfactant ◽  
Surfactant Templating ◽  
Cubic Mesoporous

Consecutive Surfactant-Templating Opens up New Possibilities for Hierarchical Zeolites

2020 ◽  
Vol 20 (2) ◽  
pp. 515-520 ◽  
Author(s):  
Erika De Oliveira Jardim ◽  
Elena Serrano ◽  
Juan Carlos Martínez ◽  
Noemi Linares ◽  
Javier García-Martínez
Keyword(s):  
Hierarchical Zeolites ◽  
Surfactant Templating

scholarly journals An EPR Study of Mo5+ Introduced into NaY Zeolites by Solid-State Reactions

1999 ◽  
Vol 54 (2) ◽  
pp. 159-161
Author(s):  
F. Ucun ◽  
A. Sağlam ◽  
F. Köksal ◽  
S. Bahçeli
Keyword(s):  
Solid State ◽  
Molecular Orbital ◽  
Effective Charge ◽  
Solid State Reactions ◽  
Tetrahedral Structure ◽  
Nay Zeolites ◽  
Orbital Coefficient

Abstract By means of an EPR investigation of Mo5+ ions introduced into NaY zeolites by solid-state reactions, the location and coordination of Mo5+ in zeolites were investigated. Two different locations, free and distorted tetrahedral, were found. The molecular orbital coefficient, ß2 , and the effective charge, Q, for the MO5+ ions in a distorted tetrahedral structure were calculated and interpreted.

Fluorinated surfactant templating of vinyl-functionalized nanoporous silica

2005 ◽  
Vol 85 (1-2) ◽  
pp. 16-24 ◽  
Author(s):  
Gifty Osei-Prempeh ◽  
Hans-Joachim Lehmler ◽  
Barbara L. Knutson ◽  
Stephen E. Rankin
Keyword(s):  
Nanoporous Silica ◽  
Fluorinated Surfactant ◽  
Surfactant Templating
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