Reaction Kinetics

Reaction Kinetics & Chemical Reaction Models
The fundamentals of chemical reaction kinetics will be presented with the purpose of building, starting with elementary reactions, complex mechanisms. These mechanisms consisting of many elementary reactions can be used with existing software (discussed later) to make predictions on the performance of chemical reactors with special consideration to the formation of trace species. The focus will be on homogeneous processes taking place in the gas phase. The majority of the material presented in this manuscript is based on the author’s own research (Gargurevich, 1997). "

Chemical Engineering Software

Chemical Engineering Software
2005 MS Excel Spreadsheet Competition

Sitio de R. Ryoo

Ryong Ryoo
Professor, Department of Chemistry
Director, Center for Functional Nanomaterials
Korea Advanced Institute of Science and Technology
Taejon, 305-701, Korea
"National Creative Research Initiative Center for Functional Nanomaterial "
Aqui se encuentran una parte importante de sus publicaciones.

Self-adjusted synthesis of ordered stable mesoporous minerals by acid-base pairs.

Entrez PubMed : "Nat Mater. 2003 Mar;2(3):159-63.
Tian B, Liu X, Tu B, Yu C, Fan J, Wang L, Xie S, Stucky GD, Zhao D.
Molecular Catalysis and Innovative Materials Laboratory, Department of Chemistry, Fudan University, Shanghai 200433, People's Republic of China.
Although the chemical diversity of ordered composite mesoporous materials has been expanding during the past decade, progress has been limited by the need for a general synthetic approach that is predictive and makes use of well developed fundamental chemical principles. Researchers have previously used the interaction of organic-inorganic (OI) species that are present during the nucleation of the composite phase, and several synthesis pathways, such as direct surfactant-inorganic interaction (S I-, S-I , S0I0) and mediated interaction (S X-I , S-X I-), have been proposed. Here we describe a new perspective in which the self-adjusted inorganic-inorganic (II) interplay between two or more inorganic precursors is guided by acid-base chemistry considerations, and in this simple way we produce an overall 'framework' for the sophisticated combination of synergic inorganic acid-base precursor pairs."

Direct imaging of the pores and cages of three-dimensional mesoporous materials.

Entrez PubMed : " Nature. 2000 Nov 23;408(6811):449-53.
Sakamoto Y, Kaneda M, Terasaki O, Zhao DY, Kim JM, Stucky G, Shin HJ, Ryoo R.
Department of Physics and CIR, Tohoku University, Sendai, Japan.
Mesostructured composite materials, with features ranging from 20 to 500 A in size, are obtained by the kinetically controlled competitive assembly of organic and inorganic species into nanostructured domains. Short-range order is limited, and long-range order is determined by weak forces such as van der Waals or hydrogen-bonding. Three-dimensional mesoporous materials obtained by removing the organic phase are of particular interest for applications such as catalysis and chemical sensing or separation, for which structural features such as cavity shape, connectivity and ordered bimodal porosity are critical. But atomic-scale structural characterization by the usual diffraction techniques is challenging for these partially ordered materials because of the difficulty in obtaining large (> 10 microm) single crystals, and because large repeat spacings cause diffraction intensities to fall off rapidly with scattering angle so that only limited small-angle data are available. Here we present a general approach for the direct determination of three-dimensional mesoporous structures by electron microscopy. The structure solutions are obtained uniquely without pre-assumed models or parametrization. We report high-resolution details of cage and pore structures of periodically ordered mesoporous materials, which reveal a highly ordered dual micro- and mesoscale pore structure."

Author Tools

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Delft Dissertations Search

Delft Dissertations Search
Tesis de la Universidad de Delf

IEEE Transactions LaTeX and Microsoft Word Style Files

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Instrucciones para publicar en IEEE y las herramientas

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