First time, one-pot oxidative esterification of aldehydes with methanol and hydrogen peroxide as a green oxidant was carried out over Keggin-type cesium salt of nickel substituted phosphotungstate. This protocol affords a novel and efficient approach for achieving high conversion (87%), selectiv...

The effect of past mechanical history on the subsequent thermal decomposition kinetics of sodium, potassium, rubidium and caesium perchlorates, has been investigated. At low temperatures the decomposition of all these salts is significantly sensitized by pre-compression. At high temperatures, ho...

Both amination graphene and carbon fibers were cross-linked together using glutaraldehyde as composite support, then, prussian blue was electrodeposited at the surface (PB/GNs/CFs). The characterization of PB/GNs/CFs by field emission scanning electron microscopy, X-ray diffraction, fourier tran...

Natural perchlorate (ClO4−) in soil and groundwater exhibits a wide range in stable isotopic compositions (δ37Cl, δ18O, and Δ17O), indicating that ClO4− may be formed through more than one pathway and/or undergoes post-depositional isotopic alteration. Plants are known to accumulate ClO4−, bu...

On the basis of extraction experiments and γ-activity measurements, the extraction constant corresponding to the equilibrium Ba2+(aq) + 2ClO4−(aq) + 1(nb) ⇄ 1·Ba2+(nb) + 2ClO4− (nb) occurring in the two-phase water–nitrobenzene system (1 = cesium ionophore II; aq = aqueous phase, nb = nitrobe...

Ionic conductivity of high-temperature phases of alkaline metal perchlorates is studied. It is found that the conductivity passes through a minimum with increasing radius of cation, and KClO4 exhibits the lowest conductivity. This is explained by a decrease in the relative size of conduction cha...

The transport of Cs+ across a bilayer lipid membrane between two aqueous phases containing chloride and perchlorate salts was readily observed when compared to using K+, because Cs+ is more hydrophobic than K+. After the Cs+ was distributed from the aqueous to the BLM with a counter anion, such ...

Removal of cesium from waters is an emerging issue after the accident at Fukushima Daiichi Nuclear Power Plant. In this work, new nanoscale zero valent iron–zeolite (nZVI–Z) and nano-Fe/Cu–zeolite (nFe/Cu–Z) composites for cesium removal were fabricated through ion exchange process followed ...

The increase in initial retention of 128I in solid CsIO3 upon pre-heat treatment prior to neutron irradiation is ascribed to the participation of inherent crystal defects, and an exciton mechanism is proposed to explain the thermal annealing data. Results of the sulphate additive studies are exp...

Tetravalent metal acid (TMA) salt zirconium(IV) iodomolybdate ion exchanger was chemically synthesized under different conditions and subjected into batch reactor for cesium removal investigation. The properties of synthesized exchangers were characterized using X-ray diffraction (XRD) and therm...

A cesium corrosion out-pile test was performed to Fe–Cr steel in a simulated fuel pin environment. In order to specify the corrosion products, the corroded area was analyzed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). A cesium corrosion process in Fe–Cr st...

In case of a severe accident (SA) occurring in a pressurized water reactor (PWR) fission products (Cs, I) are released from the degraded fuel and transported through the reactor coolant system (RCS). A part is deposited onto surfaces of the RCS and can be subsequently chemically re-mobilized, in...

Vaporisation studies over solid and liquid CsI have been carried out by Knudsen effusion (753 – 897 K) transpiration (862 – 1125 K) and boiling temperature (977 – 1430 K) methods. The Knudsen mass loss and transpiration data over CsI(s) are consistent with the presence of monomeric species up...

The presented work demonstrates the development of highly stable low temperature processed Cesium compound incorporated ZnO electron transport layer (ETL) for perovskite solar cells (PSCs). Cesium compounds such as CA (cesium acetate) and CC (cesium carbonate) modified ETLs are employed for fabr...

The present paper deals with studies on vaporisation of cesium monouranate and enthalpies of formation of cesium molybdate and cesium chromate. Vaporization studies of cesium monouranate using Knudsen cell in combination with quadrupole mass spectrometer at the temperature range of 1000–1573 K ...

Molar enthalpies of solution of caesium iodide and caesium chromate have been measured at 298.15 K using an isoperibol calorimeter. The molar enthalpies of solution at infinite dilution ΔsolHm∞(298.15 K) for CsI and Cs2CrO4 are (33.33 ± 0.02) kJ · mol−1 and (31.37 ± 0.04) kJ · mol−1, respe...

The magnitudes of the magnetic interactions in crystalline Cs2CrO4 have been described using the plane-wave DFT treatment. A good level of agreement between the calculated and measured data has been found, and its relevance for structural studies of cesium-containing compounds has been discussed...

Cyclohexane selective oxidation over nanostructured MnWO4 promoted with increasing amounts of Ce (1–5 wt%) has been investigated at mild conditions using molecular oxygen as oxidant. MnWO4 nanorods were found to be an active catalyst for cyclohexane selective oxidation with selectivity to KA oi...

The trivalent cerium silver tungstate, AgCe(WO4)2, with scheelite-like structure has been synthesized by solid-state method despite the relatively high instability of the trivalent Ce ion. This behavior could be explained by the redox properties of Ag2O in the solid state reaction at high temper...

Cerium(IV) tungstate powder was chemically synthesized and exploited as adsorbent material for the decontamination study of cobalt and europium ions from radioactive waste solutions under simulated conditions using batch technique. The influences of pH, particle size and temperature have been re...