Synchrotron X-Ray transmission diffraction experiments were performed to study hydride precipitation and dissolution in the zirconium/zirconium-hydride system while it occurs. Evidence was found that the hysteresis between the terminal solid solubility for precipitation and dissolution is not ob...

Precipitation of brittle zirconium hydrides deteriorate the fracture toughness of the fuel cladding tubes of light water reactor. Although the hydride embrittlement has been studied extensively, little is known about physical properties of the hydride due to the experimental difficulties. In the...

The mechanical properties of zirconium hydrides were studied using nano-indentation technique between 25 and 400 °C. Temperature dependency of reduced elastic modulus and hardness of δ- and ε-zirconium hydrides were obtained by conducting nanoindentation experiments on bulk hydride samples wi...

For more than a hundred years, extraction with ethyl ether has been the most used method for synthetizing H3PW12O40. However, the use of ethyl ether as the extraction agent faced many problems, such as strict regulation by public safety and environment authorities, poor operating environment, si...

Bath composition for cathodic electrodeposition of non-stoichiometric hydrated tungstic acid with high electrochromic efficiency is optimized with account for selective electroreduction of certain isopolytungstates. XRD data for thin electrodeposited films and chemically synthesized bulk tungsti...

SummaryThe activity of calmodulin-activated cyclic nucleotide phosphodies-terase in a standard reaction containing 40 ng calmodulin could be inhibited about 50% by 14 μM Triton x-100. In contrast, the calmodulin-independent phosphodiesterase required a much higher concentration of the detergent...

Considering surfactant solutions at concentrations exceeding the CMC, another relaxation process besides diffusion occurs, also affecting the dynamic surface tension. The latter equilibration process concerns a micellisation/demicellisation process, representing the disintegration of micelles in...

A broad region with unusual light-scattering properties is identified on Neptune's largest satellite Triton. Photometric analysis of Voyager 2 high-resolution images, acquired over a range of phase angles, shows that this “Anomalous-Scattering Region” (ASR) extends from at least 350°E to...

Silver vanadates thin films were deposited by a hybrid deposition system combining laser ablation and thermal evaporation. A high purity vanadium target was ablated using the third harmonic of a Nd:YAG laser whereas high purity silver pellets were evaporated. The as-deposited thin films were sub...

Silver vanadate (Ag4V2O7) nanowires are synthesized through a simple and facile cation exchange method, and the silver vanadate/silver (Ag/Ag0.68V2O5) nanowires are obtained through calcination of Ag4V2O7 nanowires at 250-500 °C. By varying the reaction time, the progression of the cation excha...

Modification of conventional Pt/C electrocatalyst with silicomolybdic acid (SiMoA) was performed using electrochemical cyclic voltammetry method. The modified and unmodified catalysts were tested under identical conditions for electrooxidation of CO, methanol, and ethanol. In the CO-stripping ex...

Silicomolybdic acid that is supported on silica gel (50 wt %) efficiently catalyzes the high-yielding Hosomi–Sakurai allylation of carbonyl compounds by allyltrimethylsilane in the presence of benzyl alcohol. The reaction rates of inactive substrates and the yields were greatly increased when p...

Beta silicomolibdic acid/silica (β-SMA, a metastable form of silicomolybdic acid – H4SiMo12O40) forms by the impregnation of fumed silica into molybdenum solution obtained by hydrolyzation of MoO2Cl2. β-SMA/silica is found to be stable up to 300 °C after calcination for 1 h due to the existe...

In this paper, we report our investigation into the immobilization of silicomolybdic acid on hollow mesoporous silica spheres and the activity of the modified spheres for hydrolytic dehydrogenation of ammonia borane. Silica shells were coated onto polystyrene (PS) template particles by the sol–...

Polyoxometalates (POMs), green materials with extraordinary structure and physicochemical properties, have interesting pharmacological properties. In this work, phosphomolybdic acid–reduced graphene oxide (PMo–RGO) nanocomposite was prepared by a simple hydrothermal reduction method without us...

A phosphomolybdic acid doped polyaniline (PANI) anti-corrosive coating was synthesized on stainless steel (304SS) by electropolymerization. The combination of phosphoric acid de-doping and phosphomolybdic acid re-doping processes leads to the direct and quick deposition of PANI-coating on 304SS ...

Flat, free-standing phosphomolybdic acid and mixed phosphotungstic/phosphomolybdic acid chitosan membranes were prepared by in-situ ionotropic gelation process at room temperature on porous alumina support firstly impregnated by heteropolyacid. Scanning electron microscopy revealed the formation...

A green and efficient solid acid catalyst was developed for direct conversion of Jatropha oil into biodiesel over Ni modified phosphomolybdic acid (HPMo)/carbon nanotubes (CNTs) in a fixed-bed reactor. Under optimal conditions (Temperature = 330 °C, Pressure = 3 MPa, H2/oil (v/v) = 800 N m3 m−3...

TiO2 nanotube arrays were prepared by means of an electrochemical anodization technique in an organic electrolyte solution doped with polyvinyl pyrrolidone (PVP) and were subsequently modified with phosphomolybdic acid (PMoA) to obtain PMoA/TiO2 nanotube arrays. The microstructure and photochrom...

We have developed a new energy system of microporous carbon/Ag/phosphomolybdic acid (PMA) as efficient electrode hybrid material for supercapacitors, in which microporous carbon serves as carbon support (contribution of EDLCs), PMA as redox additive (contribution of pseudocapacitance), Ag as con...