نتایج جستجو برای: c mo

تعداد نتایج: 1081158  

   Mo-doped SnO2 nanoparticles were prepared using hydrothermal method. The average grain size obtained by varying calcinations temperature from 160 to 500 oC showed the different sizes. Prepared materials characterized by X-Ray diffraction (XRD) and scanning electron microscopy (SEM). Also the FTIR and the UV–Vis absorptive spectra have been carried out. Mo- doped SnO...

The activity of different transitional metals over modified H-ZSM-5 catalysts for methane conversion to aromatics was compared. The first group of catalysts was Mo-impregnated H-ZSM-5 zeolites with 1, 3 and 6 wt% of Mo. The second group was M(3 wt%)- impregnated H-ZSM-5 (M: Ag, Cd, Cr, Mo, Zn and Mn). The catalytic activity of the first group was investigated at 600, 700 and 800 °C and gas hour...

2008
Peter G. Jones Cristian G. Hrib Sören Randoll Xian Wu Matthias Tamm

In the title compound, [Mo(2)(η(7)-C(7)H(7))(2)(μ-H)(3)], which displays crystallographic mirror symmetry, two (η(7)-C(7)H(7))Mo units are linked along the Mo-Mo axis by three bridging hydride ligands. The Mo-Mo distance is 2.5732 (4) Å. The perpendicular distances of the Mo atoms from the C(7) planes are 1.5827 (8) and 1.5814 (8) Å, with individual Mo-C bond lengths in the range 2.261 (2)-2.27...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده مهندسی مواد 1386

آلیاژهای ni-mo به خاطر پایین بودن فراپتانسیل آزاد شدن هیدروژن بر روی آنها به طور گسترده ای استفاده می شوند. در این تحقیق جهت رسوب آلیاژهای ni-mo از حمام سیتراتی-آمونیاکی استفاده گردید. در مرحله اول تاثیر پارامترهایی از قبیل ph از مقدار 7 تا 5/10، دماهای c°24 و c°40، چگالی جریان های 10، 30 و ma/cm2 100، حضور آمونیاک در حمام و عملیات حرارتی پوشش مورد ارزیابی قرار گرفتند. منحنی های پلاریزاسیون و ا...

In this study, a high energy planetary ball milling technique was used to synthesize nano-crystalline Mo-Cu alloys. Molybdenum trioxide (MoO3) and copper oxide (CuO) were used as the starting materials. Carbo-thermal co-reduction of mixed Mo and Cu oxides powders was done with milling followed by a heat treatment at a high temperature. Differential thermal analysis/thermogravimetric (DTA/TG) wa...

High-temperature erosion-oxidation behavior of nickel-based alloys containing 0-7 wt.% Mo in fluidized bed waste incineration conditions was studied. A stream of hot condensed air with a flow rate of 25 L/min caused hot silica sand (700 °C) mixed with 0.5 wt.% of chloride salts to hit the specimens for 250 h. By removing the erosive factor, the high-temperature oxidation behavior of the alloys ...

Journal: :Acta Materialia 2021

Recrystallized binary Mo-0.2 wt.% Si (Mo-0.68 at.% Si) and Mo-0.3 (Mo-1.0 alloys a ternary Mo-0.75 Si-0.14 B (Mo-2.5 Si-1.2 B) alloy were tested in uniaxial tension as function of temperature vacuum the results are compared to previous on recrystallized commercial purity (CP) Mo Mo-0.1 (Mo-0.34 solid solution alloy. Yield strength increases with increasing content at all temperatures examined e...

Journal: :IOP Conference Series: Materials Science and Engineering 2021

Journal: :Shock and Vibration 2021

Body temperature is an essential physiological index reflecting human health. Accurate measurements of body play a vital role in the diagnosis and treatment diseases. In this paper, sensor manufactured by laser-induced graphene introduced. This has high measurement accuracy, simple preparation, low production cost. The made easier to fabricate operate than traditional thermal resistance sensors...

2008
Ginger V. Shultz Stephanie A. Bossé Lev N. Zakharov David R. Tyler

The title compound, [Mo(2)(C(5)H(5))(2)(C(12)H(11)P)(2)(CO)(4)]·C(6)H(14), is a centrosymmetric Mo complex in which two Mo atoms are connected by an Mo-Mo bond [3.2072 (12) Å]. Each Mo atom is coordinated by an η(5)-cyclo-penta-dienyl ligand, two carbonyl ligands and a diphenyl-phosphine ligand in a piano-stool fashion.

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