On the anomalous shapes of native copper crystals from the Michigan Copper Country [PDF]
European Journal of Mineralogy, 2021 For over a century, the anomalous shapes of Michigan copper crystals from the Michigan Copper Country have been acknowledged. They are well known by mineral collectors and curated in museums from all around the world; still, their particular habits ...
J.-C. Boulliard, J. Aléon, E. Gaillou
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Assisting effect of Al2O3 on MnOx for NO catalytic oxidation
Green Energy & Environment, 2021 Various Mn-based catalysts for NO oxidation were prepared using MnOx as active compound, while TiO2 and Al2O3 were adopted as catalyst support. The performance of the catalysts was tested to study the effect of support on Mn-based catalyst activity ...
Denghui Wang +4 more
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ALUMINIUM BRONZE. NANOSTRUCTURAL PROCESSES OF MELTING AND MOULDING
Литьë и металлургия, 2018 It is shown that melting and molding of aluminum bronze are difficult physical and chemical processes. In them the major role is played by the centers of crystallization of dendrites of a a-phase, the a-phase nanocrystals dissolved and the adsorbed ...
E. I. Marukovich, V. Yu. Stetsenko
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TAP reactor investigation of methane coupling over samarium oxide catalysts [PDF]
, 1991 The adsorption and reaction characteristics of a Ba/Sr/Sm2O3 catalyst for methane coupling has been investigated using the TAP (Temporal Analysis of Products) reactor system. Pulsed adsorption experiments using methane, oxygen and krypton at temperatures
Fornasari, G. +5 more
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Scientific problem of modifying of primary crystals a β -phase of silumin castings. Solutions
Литьë и металлургия, 2019 It is shown that the phosphorum which is contained in a silumin melt in number of 0,01–0,04% exists in the dissolved form. For a solution of the problem of modifying of primary crystals of a β -phase in silumin castings it is necessary to accept a ...
E. I. Marukovich, V. Yu. Stetsenko
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Temperature dependence of Cu:SnO2 film conductivity in air medium
Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2023 Temperature conductivity studies of films based on Cu:SnO2 made by magnetron sputtering of the mixed target CuO/SnO2 have been carried out. Temperature conductivity dependencies were substantially nonlinear.
N.A. Klychkov, V.V. Simakov, I.V. Sinev
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Electrode polarization at the Au, O2(g)/yttria stabilized zirconia interface. Part II: electrochemical measurements and analysis [PDF]
, 1991 The impedance of the Au, O2 (g) / yttria stabilized zirconia interface has been measured as function of the overpotential, temperature and oxygen partial pressure. At large cathodic overpotentials (η < −0.1 V) and large anodic overpotentials (η > +0.1 V)
Boukamp, B.A. +2 more
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NANOSTRUCTURAL PROCESSES OF MELTING AND CASTING OF CAST IRON WITH FLAKY GRAPHITE
Литьë и металлургия, 2017 It is shown that melting and casting of cast iron with flaky graphite are the complex physical and chemical nanostructural processes. The majorrole in these processis played by the centers of crystallization of dendrites of graphite, graphite ...
E. I. Marukovich, V. Yu. Stetsenko
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Density functional theory study the effects of oxygen-containing functional groups on oxygen molecules and oxygen atoms adsorbed on carbonaceous materials. [PDF]
PLoS ONE, 2017 Density functional theory was used to study the effects of different types of oxygen-containing functional groups on the adsorption of oxygen molecules and single active oxygen atoms on carbonaceous materials.
Xuejun Qi, Wenwu Song, Jianwei Shi
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Analytical carbon-oxygen reactive potential [PDF]
, 2008 We present a reactive empirical potential with environment-dependent bond strengths for the carbon-oxygen (CO) system. The distinct feature of the potential is the use of three adjustable parameters characterizing the bond: the strength, length, and ...
Giapis, K. P., Kutana, A.
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