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. 6 Durehovi , A. , ‘ Hydration of alite and C 3 A and changes of some structural characteristics of cement pastes by addition of silica fume ’, Proceedings of 8 th International Congress on Chemistry of Cement, Vol. III

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Reaction Kinetics, Mechanisms and Catalysis
Authors: Luis Ernesto Sandoval-Díaz, Ericsson David Coy-Barrera, and Carlos Alexander Trujillo

Introduction Ranging from glass manufacture, passing through its usage as medicament excipient, to its usefulness in catalytic supports designing, silica is one of most versatile materials known to humankind [ 1 ]. In recent

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preliminary treatment of initial components, crystallinity degree, dispersion, and homogeneity of the reaction mixture [ 2 – 4 ]. We present a new method for obtaining of ZnCr 2 O 4 and MgCr 2 O 4 embedded in silica matrix. This method consists in

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Thermal transformation of polyacrylonitrile deposited on SBA-15 type silica

Effect on adsorption capacity of methyl–ethyl ketone vapor

Journal of Thermal Analysis and Calorimetry
Authors: Rafał Janus, Piotr Natkański, Anna Wach, Marek Drozdek, Zofia Piwowarska, Pegie Cool, and Piotr Kuśtrowski

adsorption properties. In the present study we have demonstrated highly effective adsorbents of VOCs obtained by thermal decomposition of PAN deposited on SBA-15 type mesoporous silica developing the available surface of carbonaceous species. This

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Pollack Periodica
Authors: Jozef Oravec, Aneta Petriláková, Vladimír Zeleňák, Magdaléna Bálintová, and Adriana Eštoková

Kothalawala N., Blitz J. P., Gun’ko V. M., Jaroniec M., Grabicka B., Semeniuc R. F. Post-synthesis surface-modified silicas as adsorbents for heavy metal ion contaminants Cd(II), Cu(II), Cr(III), and Sr(II) in

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% retaining at this sieve size according to ASTM C618 [ 5 ] as compared to the average particle size of PC at & 10–15 &m. Silica fume occurred as a by-product of the ferro-silicon alloys and silicon metal industries, on the other hand, is very fine at

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Journal of Thermal Analysis and Calorimetry
Authors: A. J. D. Fernandes, J. H. P. Barbosa, O. G. Silva, M. G. Fonseca, L. H. N. Arakaki, and J. G. P. Espínola

silica, those being good nucleation sites for hydroxyapatite (HAP) (Ca 10 (PO 4 ) 6 (OH) 2 ) [ 2 ]. Therefore, these materials show enhanced characteristics and can be used as biomaterials for bone substitution in implants and grafts [ 3 ]. In

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quality of diesel fuel and other fuel mixtures [ 1 ]. Silica gel is a solid formed by silicon dioxide, SiO 2 . It may contain admixtures of different inorganic and organic substances. Due to the presence of Si–OH groups (silanols), surface of non

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developed a silica-supported Pd nanoparticle catalyst and compared its dechlorination activity with a conventional Pd/C. We adopted p -chloroanisole and DDE as the substrates; the former is often used as a simple model of chlorinated dioxins, and the latter

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experimental measurement of the heat capacity of a complex system which consists of two components of comparable weight fractions, namely, a silica gel KSK and calcium chloride confined to its pores [ 1 ]. The main motivation was to obtain for this composite

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