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The organic oxidant TEMPO (2,2,4,4‐tetramethylpiperdine‐1‐oxyl) was immobilized on iron oxide (Fe3O4) superparamagnetic nanoparticles by employing strong metal‐oxide chelating phosphonates and azide/alkyne “click” chemistry. This simple preparation yields recyclable TEMPO‐coated nanoparticles with good TEMPO loadings. They have excellent magnetic response and efficiently catalyze the oxidation of...
At oxidizing of liquid zinc by H2O/CO2 mixture at supercritical parameters it is found the formation of nanoparticles (ZnO)n with size from 1.5 to 100 nm and combustible substances: H2, CO, lower paraffin and aromatic hydrocarbons, alcohols and formaldehyde. Composition of combustible products depends on H2O/CO2 ratio in mixture. Synthesized ZnO samples were studied by methods of scanning and transmission...
Pt(0) nanoparticles stabilized by the H5PV2Mo10O40 polyoxometalate were prepared in water by a sequence of redox reactions and supported on α-alumina. Characterization by TEM showed an average particle size of 2.6 nm with an approximate size dispersion of about ±25%. EDS analysis confirmed the amounts of metal and polyoxometalate as indicated from the reaction stoichiometry. These nanoparticles were...
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