The Surface Chemistry of Solids

Modifying Thermal Transport in Colloidal Nanocrystal Solids with Surface Chemistry.

We present a systematic study on the effect of surface chemistry on thermal transport in colloidal nanocrystal (NC) solids. Using PbS NCs as a model system, we vary ligand binding group (thiol, amine, and atomic halides), ligand length (ethanedithiol, butanedithiol, hexanedithiol, and octanedithiol), and NC diameter (3.3-8.2 nm). Our experiments reveal several findings: (i) The ligand choice ca...

the study of bright and surface discrete cavity solitons dynamics in saturable nonlinear media

امروزه سالیتون ها بعنوان امواج جایگزیده ای که تحت شرایط خاص بدون تغییر شکل در محیط منتشر می-شوند، زمینه مطالعات گسترده ای در حوزه اپتیک غیرخطی هستند. در این راستا توجه به پدیده پراش گسسته، که بعنوان عامل پهن شدگی باریکه نوری در آرایه ای از موجبرهای جفت شده، ظاهر می گردد، ضروری است، زیرا سالیتون های گسسته از خنثی شدن پراش گسسته در این سیستم ها بوسیله عوامل غیرخطی بوجود می آیند. گسستگی سیستم عامل...

Physical chemistry of solids--the science behind materials engineering.

INTERNATIONAL UNION OF PURE AND APPLIED CHEMISTRY PHYSICAL CHEMISTRY DIVISION COMMISSION ON COLLOID AND SURFACE CHEMISTRY* Subcommittee on Characterization of Porous Solids RECOMMENDATIONS FOR THE CHARACTERIZATION OF POROUS SOLIDS

These recommendations aim to be a tool for the selection and appraisal of the methods of characterization of porous solids, and to also give the warnings and guidelines on which the experts generally agree. For this purpose, they successively consider the description of a porous solid (definitions, terminology), the principal methods available (stereology , radiation scattering, pycnometry, ads...

The Surface Chemistry of Bone*

It has been shown by Freudenburg and Gyorgy that dried preparations of cartilage can take up certain cations from solution (l), and that in the case of calcium and magnesium this reaction can be followed by a similar reaction involving phosphate (2). On the other hand, it has been claimed by Roche and Deltour (3) that cartilage first binds phosphate and that this may be followed by a binding of...