scholarly journals Synthesis of ZSM-23 (MTT) zeolites with different crystal morphology and intergrowths: effects on the catalytic performance in the conversion of methanol to hydrocarbons

2019 ◽  
Vol 9 (23) ◽  
pp. 6782-6792 ◽  
Author(s):  
A. Molino ◽  
J. Holzinger ◽  
K. A. Łukaszuk ◽  
D. Rojo-Gama ◽  
A. E. Gunnæs ◽  
...  
Keyword(s):  
Crystal Morphology ◽  
Catalytic Performance ◽  
Crystalline Phases ◽  
Organic Structure ◽  
Methanol To Hydrocarbons ◽  
Structure Directing Agents

A series of zeolite ZSM-23 samples prepared with different organic structure-directing agents, gave rise to crystalline phases, which show a large variety of particle dimensions.

Zeolite (MFI) Crystal Morphology Control Using Organic Structure-Directing Agents

2004 ◽  
Vol 16 (26) ◽  
pp. 5697-5705 ◽  
Author(s):  
Griselda Bonilla ◽  
Isabel Díaz ◽  
Michael Tsapatsis ◽  
Hae-Kwon Jeong ◽  
Yongjae Lee ◽  
...  
Keyword(s):  
Crystal Morphology ◽  
Morphology Control ◽  
Organic Structure ◽  
Structure Directing Agents

scholarly journals Improving the catalytic performance of SAPO-18 for the methanol-to-olefins (MTO) reaction by controlling the Si distribution and crystal size

2016 ◽  
Vol 6 (8) ◽  
pp. 2796-2806 ◽  
Author(s):  
Raquel Martínez-Franco ◽  
Zhibin Li ◽  
Joaquín Martínez-Triguero ◽  
Manuel Moliner ◽  
Avelino Corma
Keyword(s):  
Crystal Size ◽  
Organic Molecules ◽  
Chemical Properties ◽  
Catalytic Performance ◽  
Organic Structure ◽  
Mto Reaction ◽  
Physico Chemical ◽  
Small Pore ◽  
Structure Directing Agents

The physico-chemical properties of the small pore SAPO-18 zeotype have been controlled by properly selecting the organic molecules acting as organic structure directing agents (OSDAs).

scholarly journals Alcohol-assisted synthesis of high-silica zeolites in the absence of organic structure-directing agents

2021 ◽  
Vol 42 (4) ◽  
pp. 563-570
Author(s):  
Huimin Luan ◽  
Chi Lei ◽  
Ye Ma ◽  
Qinming Wu ◽  
Longfeng Zhu ◽  
...  
Keyword(s):  
Organic Structure ◽  
High Silica ◽  
High Silica Zeolites ◽  
Structure Directing Agents

scholarly journals Shape Selectivity in the Conversion of Methanol to Hydrocarbons: The Catalytic Performance of One-Dimensional 10-Ring Zeolites: ZSM-22, ZSM-23, ZSM-48, and EU-1

ACS Catalysis ◽  
2011 ◽  
Vol 2 (1) ◽  
pp. 26-37 ◽  
Author(s):  
Shewangizaw Teketel ◽  
Wegard Skistad ◽  
Sandrine Benard ◽  
Unni Olsbye ◽  
Karl Petter Lillerud ◽  
...  
Keyword(s):  
Shape Selectivity ◽  
Catalytic Performance ◽  
One Dimensional ◽  
Methanol To Hydrocarbons

MoVTeNbO multifunctional catalysts: Correlation between constituent crystalline phases and catalytic performance

2005 ◽  
Vol 7 (5) ◽  
pp. 507-519 ◽  
Author(s):  
P. Botella ◽  
E. García-González ◽  
J.M. López Nieto ◽  
J.M. González-Calbet
Keyword(s):  
Catalytic Performance ◽  
Crystalline Phases ◽  
Multifunctional Catalysts

scholarly journals Zeolite Synthesis Using Imidazolium Cations as Organic Structure-Directing Agents

2019 ◽  
Vol 10 (1) ◽  
pp. 303
Author(s):  
Paloma Vinaches ◽  
Sibele Pergher
Keyword(s):  
Research Study ◽  
Research Area ◽  
Zeolite Synthesis ◽  
New Materials ◽  
Imidazolium Cation ◽  
Organic Structure ◽  
Imidazolium Cations ◽  
Structure Directing Agents ◽  
Direction Effect

Imidazolium-derivative cations are very interesting molecules used as organic structure-directing agents (OSDAs) for zeolite synthesis, widening the possibilities of new materials and applications in this research area. In this review, the studies performed at LABPEMOL using this kind of compound are presented after a quick overview on imidazolium derivatives. The first zeolite synthesis results that started this research study were obtained with 1-butyl-3-methylimidazolium chloride. Then, the design of new OSDAs based on the imidazolium cation, such as 1,2,3-triethylimidazolium, 2-ethyl-1,3-dimethylimidazolium and 1,2,3-triethyl-4-methylimidazolium, is reported. Afterwards, the structure-direction effect caused by the introduction of heteroatoms with already-published imidazolium derivatives (for example, the Al3+ insertion into zeolite frameworks with two different OSDAs and the silicoaluminophosphate (SAPO) synthesis using 2-ethyl-1,3,4 trimethylimidazolium cations) is discussed. Finally, we also present a quick overview of some achievements of other laboratories.

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