Dry gel conversion synthesis of SAPO- and CoAPO-based molecular sieves by using structurally related preformed AlPO precursors as the starting materials

2009 ◽  
Vol 123 (1-3) ◽  
pp. 71-77 ◽  
Author(s):  
Banghao Chen ◽  
Yining Huang
Keyword(s):  
Molecular Sieves ◽  
Dry Gel Conversion

Highly mesoporous SAPO-11 molecular sieves with tunable acidity: facile synthesis, formation mechanism and catalytic performance in hydroisomerization of n-dodecane

2017 ◽  
Vol 7 (23) ◽  
pp. 5775-5784 ◽  
Author(s):  
Shuo Tao ◽  
Xiaolei Li ◽  
Guang Lv ◽  
Congxin Wang ◽  
Renshun Xu ◽  
...  
Keyword(s):  
Formation Mechanism ◽  
Molecular Sieves ◽  
Catalytic Performance ◽  
Excellent Performance ◽  
Facile Synthesis ◽  
Dry Gel Conversion

Hierarchical SAPO-11 molecular sieves with tunable acidity fabricated by a facile dry-gel conversion approach show excellent performance in hydroisomerization of n-dodecane.

Synthesis of AFI aluminophosphate molecular sieves partly substituted with magnesium by dry-gel conversion method

2004 ◽  
Vol 58 (22-23) ◽  
pp. 2918-2923 ◽  
Author(s):  
Shyamal Kumar Saha ◽  
Suresh B Waghmode ◽  
Yoshihiro Kubota ◽  
Yoshihiro Sugi
Keyword(s):  
Molecular Sieves ◽  
Dry Gel Conversion ◽  
Conversion Method ◽  
Aluminophosphate Molecular Sieves

Dry-gel conversion synthesis of SAPO-11 molecular sieves and their use in hydroisodewaxing of hydrocracking recycle oil

2016 ◽  
Vol 11 (6) ◽  
pp. 846-854 ◽  
Author(s):  
ChunMin Song ◽  
Huidi Yang ◽  
Yanzhen Wang ◽  
Yi Feng ◽  
Xinying Shi ◽  
...  
Keyword(s):  
Molecular Sieves ◽  
Dry Gel Conversion

Magnesioaluminophosphate molecular sieves with ATS topology: Synthesis by dry-gel conversion method and catalytic properties in the isopropylation of biphenyl

2005 ◽  
Vol 81 (1-3) ◽  
pp. 277-287 ◽  
Author(s):  
Shyamal Kumar Saha ◽  
Suresh B. Waghmode ◽  
Hiroyoshi Maekawa ◽  
Reiichiro Kawase ◽  
Kenichi Komura ◽  
...  
Keyword(s):  
Molecular Sieves ◽  
Catalytic Properties ◽  
Dry Gel Conversion ◽  
Conversion Method

scholarly journals Zincoaluminophosphate Molecular Sieves with AFI and ATS Topologies: Synthesis by Dry-Gel Conversion Methods and Their Catalytic Properties in the Isopropylation of Biphenyl

2005 ◽  
Vol 46 (12) ◽  
pp. 2659-2667 ◽  
Author(s):  
Shyamal Kumar Saha ◽  
Hiroyoshi Maekawa ◽  
Suresh B. Waghmode ◽  
Shafeek A. R. Mulla ◽  
Kenichi Komura ◽  
...  
Keyword(s):  
Molecular Sieves ◽  
Catalytic Properties ◽  
Dry Gel Conversion

Synthesis of AlPO4-5 and AlPO4-11 Molecular Sieves by Dry-Gel Conversion Method

2000 ◽  
Vol 29 (9) ◽  
pp. 1024-1025 ◽  
Author(s):  
Mahuya Bandyopadhyay ◽  
Rajib Bandyopadhyay ◽  
Yoshihiro Kubota ◽  
Yoshihiro Sugi
Keyword(s):  
Molecular Sieves ◽  
Dry Gel Conversion ◽  
Conversion Method

scholarly journals Anticorrosion Behavior of Zeolite Coatings Obtained by In Situ Crystallization: A Critical Review

Materials ◽  
2018 ◽  
Vol 12 (1) ◽  
pp. 59 ◽  
Author(s):  
Luigi Calabrese
Keyword(s):  
Molecular Sieves ◽  
Direct Synthesis ◽  
High Surface ◽  
High Surface Area ◽  
Nanoporous Structure ◽  
Dry Gel Conversion ◽  
Research Activities ◽  
In Situ Crystallization ◽  
Zeolite Coatings

Zeolites are crystalline nanoporous aluminosilicates. Thanks to their intrinsically nanoporous structure they are widely used as molecular sieves, for exchanging ions, or, also thanks to the high surface area of these structures, for catalytic applications. Furthermore, thanks to their thermal and chemical stability, in recent years zeolite coatings have been evaluated for application as anti-corrosion coatings. The non-toxicity of this class of coatings makes it possible that they will be an environmentally friendly alternative to conventional chromate-based coatings. This article provides a brief review of the anti-corrosion performance of zeolite coatings, applied by direct synthesis technique to several metals and alloys, as discussed in the literature. After a short description of the microstructure and properties of zeolites, the discussion addresses the research activities related to this topic, as reported in the literature. Comparative analysis of literature results supported the dry-gel conversion method as a promising approach that combines a simplified synthesis procedure with anti-corrosion coating performance. Based on these considerations, an evaluation of future trends is discussed along with the final remarks.

In vitro assembly of 2-D crystals from partially purified EA1 protein secreted by Bacillus anthracis strain Delta Sterne-1

1994 ◽  
Vol 52 ◽  
pp. 276-277
Author(s):  
Mary Beth Downs ◽  
Wilson Ribot ◽  
Joseph W. Farchaus
Keyword(s):  
Cell Wall ◽  
Molecular Sieves ◽  
Cell Envelope ◽  
Single Species ◽  
Supporting Cell ◽  
Surface Layers ◽  
Rabbit Igg ◽  
In Vitro Assembly ◽  
Covalently Linked

Many bacteria possess surface layers (S-layers) that consist of a two-dimensional protein lattice external to the cell envelope. These S-layer arrays are usually composed of a single species of protein or glycoprotein and are not covalently linked to the underlying cell wall. When removed from the cell, S-layer proteins often reassemble into a lattice identical to that found on the cell, even without supporting cell wall fragments. S-layers exist at the interface between the cell and its environment and probably serve as molecular sieves that exclude destructive macromolecules while allowing passage of small nutrients and secreted proteins. Some S-layers are refractory to ingestion by macrophages and, generally, bacteria are more virulent when S-layers are present.When grown in rich medium under aerobic conditions, B. anthracis strain Delta Sterne-1 secretes large amounts of a proteinaceous extractable antigen 1 (EA1) into the growth medium. Immunocytochemistry with rabbit polyclonal anti-EAl antibody made against the secreted protein and gold-conjugated goat anti-rabbit IgG showed that EAI was localized at the cell surface (fig 1), which suggests its role as an S-layer protein.

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