نتایج جستجو برای: nickel oxide

تعداد نتایج: 207617  

Journal: :Acta Crystallographica Section E Structure Reports Online 2004

2003
Subba Rao

Lithium ion conductors 5. Lithium Nitride Li3N 6. Lithium Lanthanum Titanium Oxide, Li3xLa0.67-xTiO3 7. Lithium Titanium Phosphate, LiTi2(PO4)3 Sodium ion conductors 8. Sodium β-Alumina, Na2O)1+x(Al2O3)11 9. Sodium β”-Alumina, Li-stabilized, Na1.5(Li0.25Al10.75)O17 10. Sodium β-Gallate, (Na2O)*n(Ga2O3) 11. Sodium β”-Gallate, Na1.98Ga10.673 O17 12. Sodium Yttrium Silicate, Na5YSi4O12 13. Sodium ...

1998
D. A. Woodford R. H. Bricknell

The effect of prior air exposure on rupture life of superalloys is reported. Oxygen is identified as a damaging species leading to severe losses in both rupture life and ductility. Similar embrittlement is observed in pure nickel and a mechanism is proposed in terms of reduced grain boundary mobility. Two cobalt base alloys and an oxide dispersion strengthened nickel base alloy do not embrittle...

2017
Christophe Drouet Pierre Alphonse Abel Rousset C. Drouet P. Alphonse A. Rousset

Nonstoichiometric nickel–copper spinel manganites were found to be highly active for the reduction of nitric oxide by carbon monoxide at low temperature (300C). The activity increases with the level of nonstoichiometry of the oxides and almost linearly with their specific surface area. Moreover, this activity was found to depend strongly on the copper content, nickel manganites being almost ina...

Journal: Journal of Nanoanalysis 2018

In this study, Ni/NiO nanocomposites were prepared using simple, environment-friendly and low-cost solid-state thermal decomposition method from nickel (II) Schiff base complex at 400 and 500°C for 3 hours. The Ni/NiO nanocomposites were characterized with Fourier transformed infra-red spectroscopy (FT-IR), X-ray powder diffraction (XRD), transmission electron microscopy (TEM) and X-Ray fluores...

2010
Joseph Wang

nickel can also be determined using a copper anode. Conditions are similar to those for nickel except that the applied potentials must be 200 mV more positive than for nickel. The anodic reaction rate constants with copper are typically somewhat greater than with nickel, however the applied potential results in increased background noise so that copper offers no signal-to-noise advantage over n...

Up to now, researchers have proposed several synthesis methods for the preparation of β-nickel(II) hydroxide nanostructures. Most of these approaches contain harsh synthetic conditions such as multi-step processes, high temperatures and long reaction time. In this work, a novel, facile and low cost method is introduced to produce of β-Ni(OH)2 nanostructures using the gas-solution precipitation ...

2006
M C Elwenspoek

Nickel thin films have been electrodeposited without the use of an additional seed layer, on highly doped silicon wafers. These substrates conduct sufficiently well to allow deposition using a peripherical electrical contact on the wafer. Films 2 μm thick have been deposited using a nickel sulfamate bath on both n+and p+-type silicon wafers, where a series of trenches with different widths had ...

2004

The possibilities of sub-micron patterning by means of microstencils using pulsed laser deposition were investigated. Stencils with circular and elliptical patterns were used, with pore sizes ranging from 1 μm down to 500 nm. Strontium titanate (SrTiO3), silicon (Si) and self-assembled monolayers on gold were used as substrate materials, whereas nickel (Ni), nickel oxide (NiO) and gold (Au) hav...

2015
Jie Fu Dong Sheng Xiuyang Lu Rafael Luque

Four types of nickel catalysts supported on aluminum oxide (Ni/Al2O3) with different nickel loadings were synthesized using the co-precipitation method and were used for the hydrogenation of levulinic acid (LA) to prepare γ-valerolactone (GVL). The synthesized Ni/Al2O3 catalysts exhibited excellent catalytic activity in dioxane, and the activity of the catalysts was excellent even after being u...

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