Potassium doped barium zirconates have been synthesized by solid state reactions. It was found that the solubility limit of potassium on A-sites is between 5% and 10%. Introducing extra potassium leads to the formation of second phase or YSZ impurities. The water uptake of barium zirconates was ...

Superoxide ion, generated in situ by the phase transfer reaction of potassium superoxide and 18-crown-6, brings about an easy one pot multicomponent synthesis of 1,4-dihydropyridinefrom1-naphthylamine, aromatic aldehydes and dimedoneunder significantly mild reaction conditions at room temperature.

Ultrasound accelerates the N-alkylation of pyrrole by alkylating reagents using potassium superoxide as base in the presence of 18-crown-6. A much lower yield of N-alkylated pyrrole was realized in the absence of ultrasound. N-alkylating reagents employed for pyrrole are methyl iodide, ethyl bro...

Cerium triflate (Ce(CF3SO3)3) is used as a superoxide radical scavenger in the ether-based liquid electrolyte for the LiO2 batteries. The radical scavenging capability of Ce3+ is evaluated both in potassium superoxide + crown solution and the LiO2 batteries. The chemical analyses further demonst...

Oxygen reduction in the presence of potassium ions has been identified as a promising candidate for the cathode reaction in aprotic metal–air batteries due to its inherent reversibility. Here, we explore the kinetics of the oxygen reduction reaction in a dimethyl sulfoxide-based electrolyte usi...

We have designed and synthesized two novel yellow phosphorescent iridium complexes using dibenzothiophene-S,S-dioxide-based cyclometalated ligand for the first time, which are capable of producing highly efficient yellow and white polymer light-emitting devices (PLEDs). The resulted iridium comp...

Two novel dibenzothiophene-S,S-dioxide-based iridium complexes with yellow emission were fully synthesized and characterized. The photophysical, electrochemical and thermal properties, as well as electroluminescent properties of the resulting iridium complexes were discussed. Both the iridium co...

Cadmium sulfide (CdS) is a preferred heterojunction partner for a number of chalcogenide-based solar cells. In view of this, interest has grown in the use of solution-based deposition techniques as an alternative route for the preparation of uniform ultrathin films of CdS. However, the quality o...

Efficient dye-sensitized solar cells (DSSCs) were fabricated using graphene modified vanadium pentoxide nanobelts (GVNBs) as a cost-effective counter electrodes (CEs). GVNBs were synthesized by facile one-step hydrothermal method without using any reducing agent and harmful solvents. These novel...

Novel high-carbon-yield pitches were prepared through the iodination of 1-methylnaphthalene (1-MNP) followed by dehydroiodination/polycondensation. 1-MNP was first iodinated by I2 with the aid of I2O5, yielding mainly 1-iodo-4-MNP. Then, a thermal-dehydroiodination reaction at a comparatively lo...

The infra-red spectra of iodine pentoxide, the third hydrate (HI3O8), iodic acid (HIO3), and sodium iodate, have been examined at room temperature and 77°K in the range 4000-40 cm−1. The Raman spectra of iodine pentoxide and the third hydrate have been assigned, and lattice modes discussed. A p...

Iodine oxides are of significant interest as strong oxidizers in energetic formulation that also operate as iodine release agents for neutralization of spores using strong thermal pulses. In this paper incorporation of carbon black (CB) as the main fuel or additive into iodine oxides-based energ...

In this work, the thermal decomposition and digestion of dolomite during the calcination of medium and low grade phosphate ore were investigated. Moreover, the migration distribution of co-associated iodine in gas, liquid and solid phases was also examined. The effects of calcination temperature...

Silver-impregnated zeolite (AgIZ) has been used for removing radioiodine from contaminated groundwater and nuclear waste streams and the worldwide inventory of such secondary waste is rapidly increasing. The objective of this study was to 1) quantify the effectiveness of two grout waste forms fo...

Iodine-129 is a key risk driver in most low-level waste cementitious waste repositories. Objectives of this study were to determine iodine speciation in cementitious materials with slag (Grout+slag) and without slag (Grout–slag) and its impact on iodine immobilization. Irrespective of which iod...

We report the first study of the gas generation and thermal wave behavior during the performance of the novel nanoenergetic system based on aluminum and iodine pentoxide nanoparticles. The homogeneous mixture of Al/I2O5 ignited in the range of 605–620 °C and generated a thermal front that prop...

Actinide (An=U, Np, Pu) selenide, oxide and oxide–selenide molecular and cluster cations were synthesized by pulsed laser ablation of targets consisting of dilute mixtures of AnO2 in a selenium matrix; selected lanthanides (Ln=Ho, Tm, Lu) were included for comparison. The compositions and abund...

The gadolinium nitride selenides Gd3NSe3 and Gd23N5Se27 are formed by the reaction of gadolinium metal with its triiodide, cesium azide and selenium along with an excess of cesium iodide as flux within seven days at 900 °C in torch-sealed evacuated silica ampoules. The dominant phase Gd3NSe3 cr...

Holmium selenide Ho2Se3(cr) was synthesized and characterized by powder X-ray diffraction and energy dispersive analysis. The heat capacity of Ho2Se3(cr) has been measured by adiabatic method in the temperature range of (4.75–302.60) K. The pronounced λ-anomalies were found in Cp,m(T) dependen...

The vaporization of gadolinium and holmium mononitrides was studied and the partial pressures of the vapour species were determined by Knudsen effusion mass spectrometry. No evidence of gaseous GdN or HoN was found. The nitrides vaporize congruently by dissociation into metal vapour and molecula...