Selective Oxidation of Cycloalkanes over Iron-substituted Hexagonal Mesoporous Aluminophosphate Molecular Sieves

2004 ◽  
Vol 33 (2) ◽  
pp. 198-199 ◽  
Author(s):  
Susanta K. Mohapatra ◽  
Parasuraman Selvam
Keyword(s):  
Selective Oxidation ◽  
Molecular Sieves ◽  
Aluminophosphate Molecular Sieves

Selective Oxidation Of Hydrocarbons By Cobaltsubstituted Aluminophosphate Molecular Sieves

1991 ◽  
Vol 233 ◽  
Author(s):  
Victor A. Maroni ◽  
Lennox E. Iton
Keyword(s):  
Selective Oxidation ◽  
Radical Cation ◽  
Low Temperatures ◽  
Molecular Sieves ◽  
Inorganic Compounds ◽  
Observable Change ◽  
Aluminophosphate Molecular Sieves ◽  
Oxidation Of Hydrocarbons ◽  
Aldehydes And Ketones ◽  
Dimer Radical Cation

ABSTRACTThe Co(III) form of cobalt-substituted aluminophosphate molecular sieves, Co(III)-APOs, was found to be a selective oxidant for a variety of organic and inorganic compounds. At relatively low temperatures (20 to 100°C), alcohols are converted to aldehydes and ketones, benzene becomes a dimer radical cation, amines are transformed to imines, and NO is oxidized to NO+. There is also evidence that Co(III)APOs activate the C-H bonds of methane at higher temperatures (400–500°C). Accompanying all these reactions is a clearly observable change of color from the yellow of the Co(III) form to the blue of the Co(II) form.

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.

ChemInform Abstract: Aluminophosphate Molecular Sieves Comprised of Hydrated Triple Crankshaft Chains.

ChemInform ◽  
2010 ◽  
Vol 24 (24) ◽  
pp. no-no
Author(s):  
H.-X. LI ◽  
M. E. DAVIS ◽  
J. B. HIGGINS ◽  
R. M. DESSAU
Keyword(s):  
Molecular Sieves ◽  
Aluminophosphate Molecular Sieves

Catalytic dehydration of methanol to dimethyl ether over aluminophosphate and silico-aluminophosphate molecular sieves

2011 ◽  
Vol 12 (6) ◽  
pp. 535-538 ◽  
Author(s):  
Weili Dai ◽  
Wenbo Kong ◽  
Guangjun Wu ◽  
Niu Li ◽  
Landong Li ◽  
...  
Keyword(s):  
Dimethyl Ether ◽  
Molecular Sieves ◽  
Aluminophosphate Molecular Sieves

Use of aluminophosphate molecular sieves in CO hydrogenation

1998 ◽  
Vol 167 (2) ◽  
pp. 183-193 ◽  
Author(s):  
M.Luisa Cubeiro ◽  
Carmen M López ◽  
Alicia Colmenares ◽  
Luisa Teixeira ◽  
Mireya R Goldwasser ◽  
...  
Keyword(s):  
Molecular Sieves ◽  
Co Hydrogenation ◽  
Aluminophosphate Molecular Sieves

Two Aluminophosphate Molecular Sieves Built from Pairs of Enantiomeric Structural Building Units

2018 ◽  
Vol 57 (14) ◽  
pp. 3727-3732 ◽  
Author(s):  
Seungwan Seo ◽  
Taimin Yang ◽  
Jiho Shin ◽  
Donghui Jo ◽  
Xiaodong Zou ◽  
...  
Keyword(s):  
Molecular Sieves ◽  
Aluminophosphate Molecular Sieves

Cobalt-substituted aluminophosphate molecular sieves: x-ray absorption, infrared spectroscopic, and catalytic studies

1992 ◽  
Vol 4 (6) ◽  
pp. 1373-1380 ◽  
Author(s):  
Jiesheng Chen ◽  
Gopinathan Sankar ◽  
John Meurig Thomas ◽  
Ruren Xu ◽  
G. Neville Greaves ◽  
...  
Keyword(s):  
Molecular Sieves ◽  
X Ray ◽  
Aluminophosphate Molecular Sieves ◽  
Infrared Spectroscopic ◽  
X Ray Absorption
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