NaBrO3 combined with NH4Cl is found to be an efficient reagent for the transformation of sulfides into sulfoxides in aqueous and under mild conditions.

Providing energy for a population projected to reach 9 billion people within the middle of this century is one of the most pressing societal issues. Burning fossil fuels at a rate and scale that satisfy our near-term demand will irreversibly damage the living environment. Among the various sources of alternative and CO2-emission-free energies, the sun is the only source that is capable of provi...

Introduction: Fe-Ni metal and sulfides are common accessory minerals in eucrites and diogenites. We have invesigated the occurrence, mineralogy and composition of these phases in 4 eucrites (EET-92023, Petersburg, Stannern, Camel Donga, hereafter CD) and in two diogenites (Johnstown and Tatahouine). In addition to conventional techniques (SEM, EMP), LA-ICP-MS was used to specifically measure th...

Density functional theory (DFT) calculations of the magnetic shielding in solid state nuclear magnetic resonance (NMR) experiments provide an important contribution for the understanding of the experimentally observed chemical shifts. In this work we focus on the relation between atomic and orbital character of the valence and conduction band wave functions and the S NMR shielding in sulfides a...

In 1981 Pecoraro and Chianelli reported a complete study of catalytic behavior of transition metal sulfides catalysts in hydrodesulfurization (HDS) of dibenzothiophene (DBT) [1], in which was found a periodic tendency of the metallic sulfides activity, where ruthenium sulfide showed the highest HDS activity. These results were corroborated later by Raje et al. [2] and Liaw et al. [3], further s...

We report that hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) was rapidly destroyed by sulfides in the presence of black carbon, forming nitrite and formaldehyde, rather than toxic nitrosated reduction products. Although traditionally viewed as inactive sorbents, black carbons have been noted to participate in the destruction of certain contaminants, such as azo dyes, via quinonoid groups. Howev...

new selective coating materials are developed and used in advanced solar collector and absorber designs with improved efficiency. cobalt and copper sulfides nanoparticles are high interest for absorbers of solar thermal collectors due to their optical properties and high absorptance in the solar wavelength range (> 96%). in the present work, cobalt and copper sulfides nanoparticles were synthes...

A wide range of binary compounds is known in the system phosphorus-sulfur. They consist of discrete cage-like molecules with the composition P4Sn (n= 3–10) except for P14S. [1] The cages can formally be derived from the P4 tetrahedron of white phosphorus either by insertion of sulfur atoms into P P bonds or by exocyclic addition to phosphorus atoms. The maximum amount of sulfur per molecule is ...