The use of linear azo compounds as probes for the characterization of micropores of molecular sieves

1997 ◽  
Vol 12 (4-6) ◽  
pp. 229-249 ◽  
Author(s):  
L.-T. Yuen ◽  
J.S. Geilfuss ◽  
S.I. Zones
Keyword(s):  
Molecular Sieves ◽  
Azo Compounds

Preparation and Characterization of Ni-Containing Aluminophosphate Molecular Sieves

2011 ◽  
Vol 418-420 ◽  
pp. 617-620
Author(s):  
Ying Sun ◽  
Lan Ying Ge
Keyword(s):  
Oxidation State ◽  
Molecular Sieves ◽  
Molecular Sieve ◽  
Crystalline Form ◽  
Spectroscopic Techniques ◽  
Tetrahedral Coordination ◽  
Tetrahedral Geometry ◽  
Nickel Ions ◽  
Aluminophosphate Molecular Sieves

Aluminophosphate molecular sieve and Ni(II)-containing APO-5 materials were synthesized hydrothermally and characterized by various analytical and spectroscopic techniques. It indicates that the nickel ions with a divalent oxidation state can incorporate into the tetrahedral coordination in mesoporous aluminophosphate very well. The better crystallizing temperature is explored. A stronger crystalline form is obtained with the addition of HF. Further, microporous aluminophosphate molecular sieves and Ni(II) ions remain in a tetrahedral geometry even after calcination at 550 °C.

Synthesis and characterization of silicon-rich SAPO-44 molecular sieves

1994 ◽  
Vol 110 (1) ◽  
pp. 1-10 ◽  
Author(s):  
A.M. Prakash ◽  
S. Unnikrishnan ◽  
K.V. Rao
Keyword(s):  
Molecular Sieves ◽  
Synthesis And Characterization

Synthesis and Characterization of V-SBA-1 Cubic Mesoporous Molecular Sieves

2001 ◽  
Vol 13 (1) ◽  
pp. 208-212 ◽  
Author(s):  
Lian-Xin Dai ◽  
Kenji Tabata ◽  
Eiji Suzuki ◽  
Takashi Tatsumi
Keyword(s):  
Molecular Sieves ◽  
Mesoporous Molecular Sieves ◽  
Synthesis And Characterization ◽  
Cubic Mesoporous

Synthesis and Characterization of CuAPO-5 Molecular Sieves:  Evidence for the Framework Incorporation of Cu(II) Ions

1998 ◽  
Vol 102 (8) ◽  
pp. 1379-1386 ◽  
Author(s):  
Trinidad Muñoz, ◽  
A. M. Prakash ◽  
Larry Kevan ◽  
Kenneth J. Balkus
Keyword(s):  
Molecular Sieves ◽  
Synthesis And Characterization

scholarly journals Solid-state nuclear magnetic resonance characterization of the second generation of the UEC family of molecular sieves

2019 ◽  
Author(s):  
Heitor Secco Seleghini ◽  
Heloise de Oliveira Pastore ◽  
Fábio Aurélio Bonk
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Solid State ◽  
Magnetic Resonance ◽  
Molecular Sieves ◽  
Solid State Nmr ◽  
Second Generation ◽  
3D Structures ◽  
Nuclear Magnetic

This work reports the characterization using solid-state NMR of the second generation of the UEC family of molecular sieves, such generation is composed by two tridimensional silicoaluminophosphates synthesized from a layered aluminophosphate (AlPO-CJ70). The 3D structures are analogous to SAPO-5 (UEC-4) and SAPO-15 (UEC-5), both were characterized using multinuclear solid-state NMR, 27Al-MQ-MAS and 29Si{27Al} TRAPDOR.

Synthesis and characterization of MAPO-11 molecular sieves

2002 ◽  
Vol 53 (1-3) ◽  
pp. 135-144 ◽  
Author(s):  
Romilda Fernandez ◽  
Marcus V. Giotto ◽  
Heloise O. Pastore ◽  
Dilson Cardoso
Keyword(s):  
Molecular Sieves ◽  
Synthesis And Characterization

Characterization of hydrothermally treated MCM-41 and Ti-MCM-41 molecular sieves

2004 ◽  
Vol 98 (1-2) ◽  
pp. 115-121 ◽  
Author(s):  
P. Schacht ◽  
L. Noreña-Franco ◽  
J. Ancheyta ◽  
S. Ramírez ◽  
I. Hernández-Pérez ◽  
...  
Keyword(s):  
Molecular Sieves ◽  
Mcm 41
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