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244 Newest Publications about the topic molecular sieves

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Pillaring of layered zeolite precursors with ferrierite topology leading to unusual molecular sieves on the micro/mesoporous border

23-May-2018 | Wieslaw J. Roth; Barbara Gil; Alvaro Mayoral; Justyna Grzybek; Aleksandra Korzeniowska; Martin Kubu; Wacław Makowski ..., Dalton Transactions, 2018

Layered zeolite materials with FER layer topology can produce various condensed and expanded structures including zeolite frameworks, FER and CDO, their interlayer expanded forms (IEZ), and organic-intercalated and pillared derivatives. This work concerns pillaring of the surfactant-swollen ...

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Pillaring of layered zeolite precursors with ferrierite topology leading to unusual molecular sieves on the micro/mesoporous border

19-Jan-2018 | Wieslaw J. Roth; Barbara Gil; Alvaro Mayoral; Justyna Grzybek; Aleksandra Korzeniowska; Martin Kubu; Wacław Makowski ..., Dalton Transactions, 2018

Layered zeolite materials with FER layer topology can produce various condensed and expanded structures including zeolite frameworks FER and CDO, their interlayer expanded forms (IEZ), and organic-intercalated and pillared derivatives. This work concerns pillaring of the surfactant-swollen ...

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Tailoring 2D and 3D molecular sieves structures for polyolefin composites: do all roads lead to remarkable performances?

16-Jan-2018 | H. M. Moura; N. L. Gibbons; S. A. Miller; H. O. Pastore, Dalton Transactions, 2018

Multiple synthetic strategies were performed in order to tether a zirconium-based catalyst to the 2D and 3D molecular sieves for olefin polymerizations. The anchoring of fluorene silane to the mesoporous MCM-41 was performed in order to obtain a stable catalyst for olefin polymerization ...

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Improved Synthesis of Unsymmetrical N‐aryl‐N'‐alkylpyridyl ß‐Diketimines using Molecular Sieves and their Lithium Complexes

12-Jan-2018 | Kuldeep Chand, Chen-Long Tsai, Hsuan-Ying Chen, Wei-Min Ching, Sung-Po Hsu, James R. Carey, Sodio Chin Neng Hsu, European Journal of Inorganic Chemistry, 2018

The synthesis of unsymmetrical β‐diketimines with N‐aryl‐N'‐alkyl substitution require at least two condensation steps and tedious purification procedures. An improvement for the preparation of four unsymmetrical N‐aryl‐N'‐alkylpyridyl β‐diketimine ligands (HL1‐HL4) using 5 Å molecular sieves ...

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Improved Synthesis of Unsymmetrical N‐aryl‐N'‐alkylpyridyl ß‐Diketimines using Molecular Sieves and their Lithium Complexes

12-Jan-2018 | Kuldeep Chand, Chen-Long Tsai, Hsuan-Ying Chen, Wei-Min Ching, Sung-Po Hsu, James R. Carey, Sodio Chin Neng Hsu, European Journal of Inorganic Chemistry, 2018

The synthesis of unsymmetrical β‐diketimines with N‐aryl‐N'‐alkyl substitution require at least two condensation steps and tedious purification procedures. An improvement for the preparation of four unsymmetrical N‐aryl‐N'‐alkylpyridyl β‐diketimine ligands (HL1‐HL4) using 5 Å molecular sieves ...

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Influence of Flexibility on the Separation of Chiral Isomers in the STW‐Type Zeolite

05-Jan-2018 | Rocio Bueno-Perez, Salvador R. G. Balestra, Miguel A. Camblor, Jung Gi Min, Suk Bong Hong, Patrick J. Merkling, S ..., Chemistry - A European Journal, 2018

Molecular simulation, through the computation of adsorption isotherms, is a useful predictive tool for the selective capacity of nanoporous materials. Generally, adsorbents are modelled as rigid frameworks, as opposed to allowing for vibrations of the lattice, and this approximation is assumed ...

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Tailoring 2D and 3D Molecular Sieves Structures for Polyolefins Composites: Do All Roads Lead to Remarkable Performances?

29-Dec-2017 | Hipassia Marcondes Moura; Nicole L Gibbons; Stephen Miller; Heloise de Oliveira Pastore, Dalton Transactions, 2017

Multiple synthetic strategies were perfomed in order to tether zirconium-based catalyst to the 2D and 3D molecular sieves for olefins polymerizations. The anchoring of fluorene silane to the mesoporous MCM-41 was performed in order to obtain a stable catalyst for olefin polymerization (1@MCM-41). ...

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Tuning the Swing Effect by Chemical Functionalization of Zeolitic Imidazolate Frameworks

18-Dec-2017 | Claire L. Hobday; Thomas D. Bennett; David Fairen-Jimenez; Alexander J. Graham; Carole A. Morrison; David R. Allan; ..., Journal of the American Chemical Society, 2017

Many zeolitic imidazolate frameworks (ZIFs) are promising candidates for use in separation technologies. Comprising large cavities interconnected by small windows they can be used, at least in principle, as molecular sieves where molecules smaller than the window size are able to diffuse into the ...

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Biosynthesis of Neokestose Laurate Catalyzed by Candida antarctica Lipase B and Its Antimicrobial Activity against Food Pathogenic and Spoilage Bacteria

07-Dec-2017 | Yawei Ning; Feng Chen; Xueming Xu; Yi Jin; Zhixin Wang; Kun Yang; Yingmin Jia, Journal of Agricultural and Food Chemistry, 2017

To increase the functionality and broaden the potential application of neokestose, neokestose laurate was biosynthesized using Candida antarctica lipase B as biocatalyst, for which a mixture of 20% DMSO in 2-methyl-2-butanol (v/v) was chosen as the reaction medium. The optimum conditions for ...

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Mass Production and Pore Size Control of Holey Carbon Microcages

04-Oct-2017 | Lei Zhang, Xiaoxiao Liu, Yuhai Dou, Binwei Zhang, Huiling Yang, Shixue Dou, Huakun Liu, Yunhui Huang, Xianluo Hu, Angewandte Chemie International Edition, 2017

Abstract Architectural control of porous solids, such as porous carbon cages, has received considerable attention for versatile applications because of their ability to interact with liquids and gases not only at the surface, but throughout the bulk. Herein we report a scalable, facile ...

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