Journal ArticleDOI
Controlled growth of monodisperse silica spheres in the micron size range
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TLDR
In this article, a system of chemical reactions has been developed which permits the controlled growth of spherical silica particles of uniform size by means of hydrolysis of alkyl silicates and subsequent condensation of silicic acid in alcoholic solutions.About:
This article is published in Journal of Colloid and Interface Science.The article was published on 1968-01-01. It has received 12884 citations till now. The article focuses on the topics: Stöber process & Silicic acid.read more
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Avoiding cracks in self-assembled photonic band-gap crystals
TL;DR: In this paper, the effects of temperature and duration of the heat treatment on 850 nm silica spheres using electron microscopy, thermogravimetry, and light scattering were investigated.
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Indocyanine green delivery systems for tumour detection and treatments.
Elena Piera Porcu,Andrea Salis,Elisabetta Gavini,Giovanna Rassu,Marcello Maestri,Paolo Giunchedi +5 more
TL;DR: The preparation, in vitro characterization and in vivo application of ICG platforms for cancer imaging and treatment are described and the promising results of all systems confirm their clinical utility but further studies are required prior to evaluating the formulations in human trials.
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Strong metal–molecular support interaction (SMMSI): Amine-functionalized gold nanoparticles encapsulated in silica nanospheres highly active for catalytic decomposition of formic acid
TL;DR: In this paper, the first example of monometallic gold nanoparticles, functionalized with amine and encapsulated in silica nanospheres, was reported as a high-performance catalyst for hydrogen generation from aqueous formic acid for chemical hydrogen storage.
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A Sinter-Resistant Catalytic System Based on Platinum Nanoparticles Supported on TiO2 Nanofibers and Covered by Porous Silica
Yunqian Dai,Byungkwon Lim,Yong Yang,Claire M. Cobley,Weiyang Li,Eun Chul Cho,Benjamin Alan Grayson,Paul T. Fanson,Charles T. Campbell,Yueming Sun,Younan Xia +10 more
TL;DR: This work demonstrates a thermally stable catalytic system consisting of Pt nanoparticles that are supported on a TiO2 nanofiber and coated with a porous SiO2 sheath that offers an energy barrier to prevent the migration of individual Pt atoms or nanoparticles because of its weak interaction with late transition metals.
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Palladium(0) nanoparticles supported on silica-coated cobalt ferrite: A highly active, magnetically isolable and reusable catalyst for hydrolytic dehydrogenation of ammonia borane
TL;DR: Palladium(0) nanoparticles supported on silica-coated cobalt ferrite (Pd(0)/SiO2-CoFe2O4) were in situ generated during the hydrolysis of ammonia borane, isolated from the reaction solution by using a permanent magnet and characterized by ICP-OES, XRD, TEM, Tem-EDX, XPS and the N2 adsorption-desorption techniques as mentioned in this paper.
References
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Electron Microscopy of Monodisperse Latexes
E. B. Bradford,J. W. Vanderhoff +1 more
TL;DR: In this article, a series of monodisperse polystyrene latexes has been prepared by carefully controlled emulsion polymerizations. The particle diameters of three of these latexes were determined by electron microscopy.
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Aerosil, Herstellung, Eigenschaften und Verhalten in organischen Flüssigkeiten
Ernst Wagner,Brunner Helmut F +1 more
TL;DR: Aerosil, ein sehr reines, koaguliertes Siliciumdioxyd-Aerosol with Teilchen von 10 bis 40 mμ Durchmesser, wird durch Flammenhydrolyse von siliciumtetrachlorid gewonnen as discussed by the authors.