Silica-supported chromium oxide: colloids as building blocks‡
Literature Information
Ive Hermans, Eric Breynaert, Hilde Poelman, Roger De Gryse, Duoduo Liang, Gustaaf Van Tendeloo, André Maes, Jozef Peeters, Pierre Jacobs
In this contribution, the formation and immobilisation of chromium(III) hydroxyoxide colloids is investigated. Nano-sized Cr(III) colloids are generated in situ upon reduction of Cr(VI), dosed to a stirred reactor. The growth of the elementary colloids by the consumption of solved Cr is kinetically unfavorable compared to their aggregation to larger secondary particles, the size of which depends on the concentration of the building block colloids. This aggregation process can be steered by simple process parameters such as dosing rate and concentration of the Cr(VI). The Cr(III) colloids are immobilised in situ on a support material via precipitation chromatography. Upon drying, the initially amorphose hydroxyoxides are gradually transformed into crystalline Cr2O3 nanoparticles, mainly located at the external surface of the support. This approach opens new opportunities for the synthesis of supported metal oxide catalysts.
Recommended Journals
Related Literature
The colloid structural forces as a tool for particle characterization and control of dispersion stability
Elka S. Basheva, Peter A. Kralchevsky, Krassimir D. Danov, Kavssery P. Ananthapadmanabhan, Alex Lips
DOI: 10.1039/B705758J
Chlorine–benzene complexes—the reliability of density functionals for non-covalent radical complexes‡
A. K. Croft, H. M. Howard-Jones
DOI: 10.1039/B704966H
Multiphoton dissociation dynamics of BrCl and the BrCl+cation
Olivier P. J. Vieuxmaire, N. Hendrik Nahler, Richard N. Dixon, Michael N. R. Ashfold
DOI: 10.1039/B709222A
Barium diffusion in mixed cation glasses
M. Grofmeier, F. V. Natrup, H. Bracht
DOI: 10.1039/B709868E
Transient behavior of an electrolytic diode
Zdeněk Slouka, Michal Přibyl, Dalimil Šnita, Tomáš Postler
DOI: 10.1039/B707197C
Structural characterization of an anhydrous polymorph of paclitaxel by solid-state NMR‡
James K. Harper, David M. Grant
DOI: 10.1039/B711027H
Investigation of the interactions between alkanethiol self-assembled monolayers and a liquid overlayer using impedance spectroscopy
Janelle D. S. Newman, G. J. Blanchard
DOI: 10.1039/B711212B
You might also like
What is Ethyl 3-cyclohexylpropanoate (CAS: 10094-36-7)?
Ethyl 3-cyclohexylpropanoate is a clear, colorless to light yellow liquid with a...
How should waste containing 2-(Hydroxymethyl)-5-(methoxycarbonyl)-6-methyl-4-(2-nitrophenyl)nicotinic acid (CAS: 34783-31-8) be handled?
Waste containing 2-(Hydroxymethyl)-5-(methoxycarbonyl)-6-methyl-4-(2-nitrophenyl...
How should waste containing 2,4,6-Tris(pentafluoroethyl)-1,3,5-triazine (CAS: 858-46-8) be handled?
Waste containing 2,4,6-Tris(pentafluoroethyl)-1,3,5-triazine (CAS: 858-46-8) sho...
What precautions should be taken when handling Chloroac-nle-oh (CAS: 56787-36-1)?
When handling Chloroac-nle-oh (CAS: 56787-36-1), it is essential to wear appropr...
What industries use Ethyl 6-phenylimidazo[2,1-b][1,3]thiazole-3-carboxylate (CAS: 752244-05-6)?
Ethyl 6-phenylimidazo[2,1-b][1,3]thiazole-3-carboxylate is primarily used in the...
Are there alternatives to alpha-(2-Bromophenyl)benzylamine (CAS: 55095-15-3) in synthesis?
Alternatives to alpha-(2-Bromophenyl)benzylamine (CAS: 55095-15-3) in synthesis ...
How should waste containing 2-Chloro-5-methoxypyridine (CAS: 139585-48-1) be handled?
Waste containing 2-Chloro-5-methoxypyridine (CAS: 139585-48-1) should be managed...
What industries use 1-(4-Methoxyphenyl)-2,5-dimethyl-1H-pyrrole (CAS: 5044-27-9)?
1-(4-Methoxyphenyl)-2,5-dimethyl-1H-pyrrole (CAS: 5044-27-9) is used in various ...
Are there alternatives to 3-Bromo-5-(N-Boc)aminomethylisoxazole (CAS: 903131-45-3) in synthesis?
There are alternative reagents and compounds that can be used in the synthesis o...
What is Tungsten(IV) oxide (CAS: 12036-22-5)?
Tungsten(IV) oxide, also known as tungsten dioxide, is a chemical compound with ...
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.










![Bis[(1,2,3,4,5-eta)-1-(diphenylphosphino)cyclopentadienyl]iron structure Bis[(1,2,3,4,5-eta)-1-(diphenylphosphino)cyclopentadienyl]iron structure](https://static.chemtradehub.com/structs/121/12150-46-8-ecd2.webp)



