Physically vitrifying amorphous single-element metal requires ultrahigh cooling rates, which are still unachievable for most of the closest-packed metals. Here, we report a facile chemical synthetic strategy palladium nanoparticles with purity 99.35 at.% ± 0.23 from palladium—silicon liquid droplets. In-situ transmission electron microscopy directly detected solidification and separation silico...

cofe2o4 magnetic nanoparticles were modified by dopamine (da) and ascorbic acid (aa) as anchors. separation of the da and aa using cofe2o4 magnetic nanoparticles have been studied by investigating the effects of ph, concentration of the da and aa, amount of adsorbents, contact time, ionic strength and temperature. the mechanism of adsorption was also studied. the adsorption of da and aa to the ...

widespread arsenic contamination of mining wastewater of zarshouran (west azerbaijan province) hasled to a massive epidemic of arsenic poisoning in the whole of surrounding areas. it is estimated thatapproximately all agriculture fields are being irrigated with the water that its arsenic concentrationselevated above the world health organization’s standard of 10 parts per billion. a novel advan...

The aim of this one-year project is to develop synthetic methods to form well-defined colloidal assemblies of metal nanoparticles and to understand their unique optical properties focusing on magnetic resonance scattering and surface enhanced Raman scattering (SERS). Our synthetic approach is based on the templated surfactant-assisted seed growth method, where polymer particles decorated with s...

The dynamic behavior and kinetics of the structural transformation of supported bimetallic nanoparticle catalysts with synergistic functions in the oxidation process are fundamental issues to understand their unique catalytic properties as well as to regulate the catalytic capability of alloy nanoparticles. The phase separation and structural transformation of Pt(3)Sn/C and PtSn/C catalysts dur...

a facile mechanochemical-based method for synthesis of copper oxide (cuo) nanoparticles is here by introduced. for this purpose, copper hydroxide powder was synthesized through a facile solution method (cuso4 + 2 na(oh) → cu(oh)2 + na2so4) after which milling of as-prepared cu(oh)2 precursor and nacl resulted in the mechanochemical dehydration of cu(oh)2 and dispersion of cuo nanoparticles into...