The exchange of the monocarboxylate ligand of the zirconium methacrylate oxocluster Zr(6)O(4)(OH)(4)(OMc)(12) (OMc = CH(2)=CH(CH(3))COO) with dicarboxylic acids (trans,trans muconic acid and terephthalic acid) leads to porous zirconium dicarboxylates exhibiting the UiO-66 architecture; the mild reaction conditions allow the control of their particle size.

The activity of emission control catalysts must be improved in urban mode at low temperatures. One possible way is to tailor the metal-support interaction between platinum group metals (PGMs) and ceria stabilize small clusters or single atoms, optimizing utilization costly PGMs. In this study, a loading Pd (<0.2 wt.%) was dispersed on Pr-rich cerium–zirconium–praseodymium mixed oxides (CZP45...

The use of thinner membranes in polymer electrolyte water electrolysis increases the likelihood forming an explosive H 2 /O mixture anode stream. Doping Pt nanoparticles into a Nafion membrane as recombination catalyst effectively lowers hydrogen crossover. Here, we propose additional co-doping cerium-zirconium oxide radical scavenger to mitigate degradation. Our results show over 4-fold reduct...

in this study, isophthalic acid-zirconium(iv) nanocomposite has been prepared from zirconyl nitrate pentahydrate and potassium iodide, with isophthalic acid, (c8h6o4=benzene-1,3-dicarboxylic acid) as a ligand, via sonochemical method in ethylene glycol and methanol as solvents. the crystalline tetragonal zro2 has been produced by thermal decomposition of isophthalic acid-zirconium(iv) nanocompo...

In this research, the radiation-heterogeneous processes of water decomposition on surface zirconium dioxide nanoparticles (n-ZrO2) were studied. The kinetics buildup molecular hydrogen during radiolytic was also examined. production H2 and H2O2 through radiolysis investigated to develop a computational model disclose kinetic behavior radiolysis. enthalpy ZrO2 studied at temperature range T=1200...

In aquatic environments, phosphorus is known as the “limiting nutrient.” It combines with nitrogen and photosynthetic processes to produce plant and algal growth. Phosphorus in marine life support systems exists in either a particulate or dissolved phase. While particulate sources may be removed during filtration or fractionation, the dissolved form persists. In a typical marine environment (pH...