نتایج جستجو برای: sulfidation
تعداد نتایج: 378 فیلتر نتایج به سال:
this work describes the optical and structure properties of nickel sulfide and cobalt sulfide nanoparticles in zsm-5 zeolite. the samples were obtained by sulfidation of the ni2+ and co2+ ion-exchange zsm-5 zeolites in a na2s solution at room temperature. the optical properties of the samples were studied by uv-visible spectroscopy. their crystalline structure and morphology were studied by x-r...
The Balazard prospecting area is located about 120 km southwest of Nehbandan city, Khorasan Jonoobi Province, in the central parts of Lut block volcano-plutonic belt. The intrusion of a granitoid pluton into rhyolitic and andesitic rocks has led to alteration and mineralization. Hydrothermal alteration zones consist of argillic, sericite-argillic, silicic-argillic, propylitic, and advanced arg...
Silver nanowires (AgNWs) are being developed for use in optoelectronics. However before widespread usage, it is crucial to determine their potential effects on human health. It is accepted that Ag nanoparticles (AgNPs) exert toxic effects by releasing Ag(+) ions, but much less is known about whether Ag(+) reacts with compounds, or any downstream bioactive effects of transformed AgNPs. Analytica...
Semi-massive to massive sulfides with abundant late native sulfur were drilled in a shallowwater hydrothermal system in an island arc volcanic setting at the Palinuro volcanic complex in the Tyrrhenian Sea, Italy. Overall, 12.7 m of sulfide mineralisation were drilled in a sediment-filled depression at a water depth of 630 650 m using the lander-type Rockdrill I drill rig of the British Geologi...
The design and construction of a promising electrode is attractive for the sensitive selective detection hydrazine. In this paper, hollow CoS 2 /N-doped mesoporous graphite carbon nanocages (CoS /HNGC) were synthesized derived from ZIF-8@ZIF-67 by annealing sulfidation. situ nitrogen coordination self-compounding porous with structure can effectively improve electrocatalytic performance electro...
Abstract Porous intermetallic membrane with extensive interconnected pores are potential candidates as functional materials for high-temperature particulate matter (PM) capturing. However, fabrication of a combined performance high filtration efficiency and oxidation resistance remains challenge. To tackle this issue, hierarchical micro-/nano-dual-scale sized was constructed on the inner cell w...
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