Highly active and robust eletcrocatalysts based on earth-abundant elements are desirable to generate hydrogen and oxygen as fuels from water sustainably to replace noble metal materials. Here we report an approach to synthesize porous hybrid nanostructures combining amorphous nickel-cobalt complexes with 1T phase molybdenum disulfide (MoS2) via hydrazine-induced phase transformation for water s...

In the present study, a hydro-refining spent catalyst with an alumina base has been taken into consideration. It is mostly used for the recovery of molybdenum. The spent catalyst constitutes around 21 pct of molybdenum as molybdenum oxide. The study has revealed that at temperature lower than 600C, it is possible to recover an appreciable quantity of molybdenum from the spent catalyst. The stat...

′ An integrated computational approach is proposed for evaluating the lattice misfit between and in Ni-base superalloys by combining rst-principles calculations, existing experimental data and phenomenological modeling. In particular, the lattice misfits in Ni–Al and Ni–Al–Mo lloys were studied. This approach is validated by comparing the calculated lattice misfit with available experimental me...

Abstract An entirely femtosecond laser (fs-laser) based process for the production of stable, enlarged and alloyed nickel surfaces is presented. The allows use metal foils aqueous salt solutions as alloying element sources. We alloy iron from an source well molybdenum cobalt commercially available on mesh without further coating process. It shown that content surface structured with fs-laser de...

OBJECTIVES Evaluation of the allergenic properties of the metal knee or hip joint implants 24 months post surgery and assessment of the relation between allergy to metals and metal implants failure. MATERIALS AND METHODS The study was conducted in two stages. Stage I (pre-implantation) - 60 patients scheduled for arthroplasty surgery. Personal interview, dermatological examination and patch t...

The kinetics and mechanism of the proton reduction reaction in the room temperature ionic liquid 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([C(2)mim][NTf(2)]) was studied at gold, molybdenum, nickel, titanium and platinum electrodes. Significant differences in electrochemical rate constants were observed between the different metals and with the corresponding processes in aq...

Although stents reduce the rate of vessel restenosis, in-stent restenosis is a recognized clinical problem and it appears that patients positive for allergic patch-test reactions to the stent components nickel and molybdenum have increased rates of it. A patient with angina pectoris had repeated episodes of restenosis after stent implantation and histological examination demonstrated granulatio...

Plants have need for about 18 essential nutrients. Of these essential nutrients, several are classified as trace metals, namely: zinc, iron, manganese, copper, boron, molybdenum, cobalt, and nickel. In addition, other trace metals commonly exist in soil that can be taken up, such as arsenic, chromium, iodine, selenium, and others. Some of these elements are more or less inert in the plant and o...

Bismuth–lithium alloys are considered as primary candidates for the reductive extraction step of on-line reprocessing a molten salt reactor fuel. The corrosion behavior pure metals and nickel-based was studied in liquid Bi–Li (5 mol.%) alloy at 650 °C. tantalum, molybdenum, corrosion-resistant VDM® Alloy C-4, Hastelloy® G-35®, KhN62M, 59 were prospective materials this metal media. rates determ...