Results 111 to 120 of about 2,245 (216)

Structure features of chromates (VI) of 3d-elements

, 2010
Gruba Oksana Nikolaevna - PhD (Chemistry), Associate Professor, Analytical Chemistry Subdepatment, South Ural State University. Груба Оксана Николаевна - кандидат химических наук, доцент, кафедра аналитической химии, Южно-Уральский государственный ...
Ryabukhin, A. G., South Ural State University, Южно-Уральский государственный университет, Рябухин, А. Г., Gruba, O. N., Груба, О. Н.   +5 more
core  

Perovskite Chromates Cathode with Exsolved Iron Nanoparticles for Direct High-Temperature Steam Electrolysis

, 2016
Recently, composite cathodes based on doped lanthanum chromates have been widely employed for direct steam electrolysis. However, this approach limits the electrode performances and Faraday efficiency due to insufficient electrocatalytic activity.
Winston Doherty (1913233), Yan Wang (15435), Kui Xie (1913230), Yucheng Wu (573366), Yuanxin Li (1561606)   +4 more
core   +1 more source

Crystal chemistry of alkaline and alkali-earth metals chromates

, 2009
Ryabukhin Aleksandr Grigorevich - Dr. Sc. (Chemistry), Professor, Physical Chemistry Subdepartment, South Ural State University. Рябухин Александр Григорьевич - доктор химических наук, профессор, кафедра физической химии, Южно-Уральский государственный ...
Ryabukhin, A. G., South Ural State University, Южно-Уральский государственный университет, Рябухин, А. Г., Gruba, O. N., Груба, О. Н.   +5 more
core  

A novel multiferroic system: rare earth chromates

, 2010
In this work, we report on our studies on the multiferroic properties of two rare earth chromates, GdCrO3 and YCrO3. Polycrystalline bulks and thin films have been fabricated using conventional solid state reaction and pulsed laser deposition.
Hideo Kimura (402027), Zhenxiang Cheng (19588861), Xiaolin Wang (19586197), Shi Dou (19588858), Kiyoshi Ozawa (20117784)   +4 more
core   +1 more source

An investigation on the effect of structural variation on thermal decomposition of rare earth chromates(V)

, 1978
Non-isothermal decomposition kinetics of LaCrO4, PrCrO4, and NdCrO4 have been investigated. In each case, first order decomposition takes place. The energy of activation, Ea* has been evaluated by applying five different computational procedures based on
Roy, Ajoy, Chaudhury, M., Nag, K.
core   +1 more source

Effet de l’addition d’ions chromates sur le comportement à la corrosion d’un alliage d’aluminium 6063 en milieu neutre, pollué par les ions cuivriques

, 2017
Le comportement à la corrosion d'un alliage d'aluminium 6063 a été étudié dans une eau d'irrigation synthétique polluée par les ions cuivriques en l'absence et en présence d'ions chromates à l'aide des techniques électrochimique et gravimétrique.
L Bazzi, M Hamdani, S Kertit
core   +1 more source

Subdivisions and Chromatic Roots

Journal of Combinatorial Theory, Series B, 1999
In this short paper, the author proves that for any graph \(G\) and any \(\varepsilon>0\), there is a subdivision of \(G\) all of whose chromatic roots lie in \(|z-1|< 1+\varepsilon\). An interesting corollary follows from this result, viz. for any fixed positive \(\varepsilon\), there are large subdivisions of any graph for which the roots all lie in \
openaire   +2 more sources

Determination of Valence States of Chromium in Calcium Chromates by Using X-ray Absorption Near-Edge Structure (XANES) Spectroscopy

, 1998
Calcium chromates with the empirical formulas Ca10Cr6−O25, Ca3Cr2O8, and Ca5Cr3O12, which form at temperatures >900°C at CaO:Cr2O3 molar ratios of geqslant R: gt-or-equal, slanted3 in an oxidation atmosphere have been synthesized in the pure state. X-ray
Kodre, Alojz, Mirtic, Breda, Arcon, Iztok   +2 more
core   +1 more source

PHASE EQUILIBRIA IN TERNARY SYSTEM CsCl-CsBr-Cs2MoO4 AND THE ELEMENTS OF ITS TERMINATED

Конденсированные среды и межфазные границы, 2017
The methods of physical-chemical analysis is widely used for the development of new compositions of functional materials for various purposes. The alkali halides have found most widespread use in the industry.
Sukharenko Maria A., Garkushin Ivan K., Sysuev Maria A., Osetrova Iana S.   +3 more
doaj   +1 more source

Painting on the margins: investigating the pigments, media, and techniques of Séraphine Louis

Heritage Science
The richly decorative and imaginative works by French artist Séraphine Louis (1864–1942) have long elicited fascination, and her working methods have often eluded art historians and conservators alike.
Abed Haddad, Ken Sutherland, Silvia A. Centeno, Gwénaëlle M. Kavich, Maria Kokkori, Caroline Hoover, Diana Hartman-Drumm, Nathalie Balcar, Gilles Barabant   +8 more
doaj   +1 more source