In view of their possible application as high temperature solid lubricants, the tribological and thermochemical properties of several organosilica networks were investigated over a range of temperatures between 25 and 580 °C. Organosilica networks, obtained from monomers with terminal and bridging organic groups, were synthesized by a sol-gel process. The influence of carbon content, crosslink ...

In situ and easy generation of organic electron donors from water-activation carboxylate precursors allows OED-promoted intermolecular radical addition reactions.

enhanced coagulation (ec) is defined as the addition of excess coagulation to improve the removal of disinfection by-product (dbps) precursors through the use of conventional water treatment processes. in this research, most of coagulants of ferric chloride (fecl3), poly aluminum chloride(pacl) in removal of most parameters of total organic carbon (toc), dissolved organic carbon (doc), organic ...

Palladium catalysts deposited over different types of silica (amorphous silica, mesoporousmolecular sieves, solids obtained by co-condensation of silicate precursors and many others) modified with suitable donor moieties have gained enormous importance due to their wide application as catalysts for cross-coupling and other synthetically useful organic reactions. This work provides an overview o...

A variety of prebiotic syntheses starting from reduced and gas precursors, or small reactive organic intermediates produce a variety of micron and sub-micron sized organic microstructures, including spheres, filaments and toroids. Many of these structures are hollow, and they display dynamic and reversible self-assembly. We report here some of their physical characteristics that might be compat...

The general purpose of this study is to optimise the removal of precursors of taste and odour compounds, especially 2,4,6-chlorophenol, at a water treatment plant. Nowadays, there are frequently problems of taste and odour in drinking water due to the presence of various types of compounds. Some of these are already present in the resource but o thers are generated during the chlorination stage...