New insights in the formation of silanol defects in silicalite-1 by water intrusion under high pressure
Literature Information
Mohamed-Ali Saada, Séverinne Rigolet, Anthony Ballandras, Guy Weber, Igor Bezverkhyy, Michel Soulard, Joël Patarin, Jean-Pierre Bellat
The “water–silicalite-1” system is known to act as a molecular spring. The successive intrusion–extrusion cycles of liquid water in small crystallites (6 × 3 × 0.5 μm3) of hydrophobic silicalite-1 were studied by volumetric and calorimetric techniques. The experiments displayed a decrease of the intrusion pressure between the first intrusion–extrusion cycle and the consecutive ones, whereas the extrusion pressures remained unchanged. However, neither XRD studies nor SEM observations revealed any structural and morphological modifications of silicalite-1 at the long-range order. Such a shift in the value of the intrusion pressure after the first water intrusion–extrusion cycle is attributed to the creation of silanol groups during the first water intrusion. Detailed FTIR and solid-state NMR spectroscopic characterizations provided a molecular evidence of chemical modification of zeolite framework with the formation of local silanol defects created by the breaking of siloxane bonds.
Related Literature
Reversible hydrogen gas uptake in nanoporous Prussian Blue analogues
Karena W. Chapman, Peter D. Southon, Colin L. Weeks, Cameron J. Kepert
DOI: 10.1039/B502850G
A Ru(terpy)(phen)-incorporating ring and its light-induced geometrical changes
Sylvestre Bonnet, Jean-Paul Collin, Jean-Pierre Sauvage
DOI: 10.1039/B503411F
A high-voltage dye-sensitized photocapacitor of a three-electrode system
Takurou N. Murakami, Norimichi Kawashima, Tsutomu Miyasaka
DOI: 10.1039/B503122B
[{(Mo)Mo5O21(H2O)3(SO4)}12(VO)30(H2O)20]36−: A molecular quantum spin icosidodecahedron
Bogdan Botar, Paul Kögerler, Craig L. Hill
DOI: 10.1039/B504491J
Discrete dispersion of single-walled carbon nanotubes
Qingwen Li, Ian A. Kinloch, Alan H. Windle
DOI: 10.1039/B419039D
Synthesis and cellular uptake of cell delivering PNA–peptide conjugates
Juan J. Díaz-Mochón, Laurent Bialy, Jon Watson, Rosario M. Sánchez-Martín, Mark Bradley
DOI: 10.1039/B503777H
Cp*(iPr3P)Ru(Cl)(η2-HSiClMe2): the first complex with simultaneous Si–H and RuCl⋯SiCl inter-ligand interactions
Alexander L. Osipov, Sergei F. Vyboishchikov, Konstantin Y. Dorogov, Lyudmila G. Kuzmina, Judith A. K. Howard, Dmitrii A. Lemenovskii, Georgii I. Nikonov
DOI: 10.1039/B500679A
A novel heterogeneous acid-activated clay supported copper catalyst for the photobleaching and degradation of textile organic pollutant using photo-Fenton-like reaction
Alex Chi-Kin Yip, Frank Leung-Yuk Lam, Xijun Hu
DOI: 10.1039/B501531F
Diels–Alder addition to fluorinated single walled carbon nanotubes
Lei Zhang, Jianzhong Yang, Christopher L. Edwards, Lawrence B. Alemany, Valery N. Khabashesku, Andrew R. Barron
DOI: 10.1039/B500125K
You might also like
How should 2-Methylbenzene-1,4-diamine dihydrochloride (CAS: 615-45-2) be stored?
2-Methylbenzene-1,4-diamine dihydrochloride (CAS: 615-45-2) should be stored in ...
Is (1S,4S)-2,5-Diazabicyclo[2.2.1]heptane dihydrobromide (CAS: 132747-20-7) safe?
(1S,4S)-2,5-Diazabicyclo[2.2.1]heptane dihydrobromide is generally considered sa...
What industries use (6-Chloropyridazin-3-YL)methanamine (CAS: 871826-15-2)?
(6-Chloropyridazin-3-YL)methanamine finds applications in the pharmaceutical ind...
What are the main uses of 2-Fluoro-3-methylphenol (CAS: 77772-72-6)?
2-Fluoro-3-methylphenol is primarily used in the synthesis of pharmaceuticals, p...
What precautions should be taken when handling 3-Methoxy-4-nitrobenzonitrile (CAS: 177476-75-4)?
When handling 3-Methoxy-4-nitrobenzonitrile, it is important to wear appropriate...
What precautions should be taken when handling 1,3-Oxazolo[4,5-b]pyridine-2(3H)-thione (CAS: 211949-57-4)?
When handling 1,3-Oxazolo[4,5-b]pyridine-2(3H)-thione (CAS: 211949-57-4), it is ...
What regulatory guidelines apply to 4-Ethynylbenzamide (CAS: 90347-86-7)?
4-Ethynylbenzamide (CAS: 90347-86-7) falls under various regulatory guidelines i...
What are the main uses of 3-(2-Ethylphenyl)-2-thioxo-4-imidazolidinone (CAS: 186822-57-1)?
3-(2-Ethylphenyl)-2-thioxo-4-imidazolidinone is primarily used as an intermediat...
What is (2-Fluoro-6-methoxyphenyl)acetic acid (CAS: 500912-19-6)?
(2-Fluoro-6-methoxyphenyl)acetic acid, also known as 4-fluoro-3-methoxybenzoic a...
What is the market or research trend for 2-[4-(Hydroxymethyl)phenoxy]ethanol (CAS: 102196-18-9)?
Market trends for 2-[4-(Hydroxymethyl)phenoxy]ethanol (CAS: 102196-18-9) indicat...
Source Journal
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.











![1-Benzyl-1,7-diazaspiro[4.4]nonane dihydrochloride structure 1-Benzyl-1,7-diazaspiro[4.4]nonane dihydrochloride structure](https://static.chemtradehub.com/structs/115/1159822-71-5-0320.webp)


![3-[(3R,4R)-3-[(6-aminopyrimidin-4-yl)-methyl-amino]-4-methyl-1-piperidyl]-3-oxo-propanenitrile structure 3-[(3R,4R)-3-[(6-aminopyrimidin-4-yl)-methyl-amino]-4-methyl-1-piperidyl]-3-oxo-propanenitrile structure](https://static.chemtradehub.com/structs/164/1640971-60-3-83a4.webp)