نتایج جستجو برای: heteropoly anions supported heteropoly acids polyoxometals solvent
تعداد نتایج: 529627 فیلتر نتایج به سال:
a simple and efficient one-pot, three-component strecker reaction of protected amino acids, aromatic aldehydes, and trimethylsilyl cyanide has been developed for the synthesis of chiral α-amino nitriles. the reaction was carried out in the presence of catalytic amount of phosphotungstic acid (h3[p(w3o10)4]) as an environmentally friendly catalyst.
Thermal modulation (TM) voltammetry was successfully applied to the determination of phosphate ion in natural water, by using a He-Cd dual laser as a heating source and a graphite-reinforced carbon (GRC) electrode. A heteropoly ion, i.e., 12-molybdophosphate ion ([PMo(VI)(12)O(40)](3-)), was formed through a reaction between a phosphate ion and molybdate ions in an acidic solution, and its elec...
In this research, Ni-Mo/Cs1.5H1.5PW12O40/S (S=SiO2 or Al2O3 or ASA (amorphous silica alumina)) nanocatalysts with different supports were prepared via 2 steps with impregnation method and the effect of support on the characteristic and catalytic properties of the prepared samples was studied. The synthesized sam...
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