Results 1 to 10 of about 570 (157)

Novel preparation of highly photocatalytically active copper chromite nanostructured material via a simple hydrothermal route. [PDF]

PLoS ONE, 2017
Highly photocatalytically active copper chromite nanostructured material were prepared via a novel simple hydrothermal reaction between [Cu(en)2(H2O)2]Cl2 and [Cr(en)3]Cl3.3H2O at low temperature, without adding any pH regulator or external capping agent.
Farshad Beshkar, Sahar Zinatloo-Ajabshir, Samira Bagheri, Masoud Salavati-Niasari   +3 more
doaj   +2 more sources

Flux Enhancement in Hybrid Pervaporation Membranes Filled with Mixed Magnetic Chromites ZnCr₂Se₄, CdCr₂Se₄ and CuCr₂Se₄ [PDF]

Molecules
The integration of bioethanol into transportation fuels requires efficient purification methods to overcome the ethanol–water azeotrope, which cannot be separated by conventional distillation.
Łukasz Jakubski, Izabela Jendrzejewska, Artur Chrobak, Klaudiusz Gołombek, Gabriela Dudek   +4 more
doaj   +2 more sources

Significantly Enhanced Thermal Decomposition of Mechanically Activated Ammonium Perchlorate Coupling with Nano Copper Chromite [PDF]

ACS Omega, 2021
Dongdong Zhang, Qiang Li, Ruiqin Li, Hao Li, Hongxu Gao, Fengqi Zhao, Lei Xiao, Guangpu Zhang, Gazi Hao, Wei Jiang   +9 more
doaj   +2 more sources

Catalytic neutralization of gas emissions in the manufacture of pharmaceutical preparations [PDF]

E3S Web of Conferences, 2023
Environmental protection in the Republic of Uzbekistan with a developed chemical, petrochemical, metallurgical and pharmaceutical industries is an important problem of our time. To solve it, a domestic copper-chromite catalyst “Chemex-203” was previously
Gulomov Shuxratqodir, Turdieva Dilnoza, Isaeva Nurkhon, Narzullaev Davronbek, Shadmanov Kamoliddin   +4 more
doaj   +1 more source

NEW DATA ON MINERALOGY OF THE SUGUR COPPER DEPOSIT, SOUTH URALS [PDF]

Минералогия, 2022
The previous and new data on minerals and mineral assemblages of the Sugur copper deposit in the Sugur Mountains of South Urals are summarized. The ores of the deposit host abundant calcite, andradite, diopside, magnetite, chromite and serpentine ...
V.A. Popov, M.A. Rassomakhin, V.I. Popova   +2 more
doaj   +1 more source

Thermal analysis study of ammonium nitrate in the presence of NiCuCr2O4 additive

Materials Letters: X, 2023
Nickel-copper chromite (NiCuCr2O4) was synthesized by the co-precipitation method using sodium hydroxide as a precipitating agent. The composition of ammonium nitrate (AN):NiCuCr2O4 (mass ratio 98:2) was used for the comparative thermal analysis study ...
Pragnesh N. Dave, Ruksana Sirach
doaj   +1 more source

Structural features of copper ferrite-chromites [PDF]

Journal of Structural Chemistry, 2015
The structural features and the distribution of cations over crystallographic sites of copperchromite, copper ferrite, and mixed chromite-ferrites with the spinel structure obtained by thermal decomposition at 600°C and 900°C of mixed hydroxy compounds of copper, iron, and chromium with the composition Cu2+/(Fe3++Cr3+) = 1/2 and different Fe3+/Cr3 ...
L. M. Plyasova, V. I. Zaikovskii, G. N. Kustova, T. P. Minyukova, I. Yu. Molina, N. V. Shtertser, T. M. Yurieva   +6 more
openaire   +2 more sources

Features of hole transport and density of localized states in CuCr1-xMgxO2 and CuCr1–yMgyO2/(MgCr2O4)x–y polycrystalline ceramics

Қарағанды университетінің хабаршысы. Физика сериясы, 2023
Magnesium doped polycrystalline ceramic samples of cooper chromite (I) with 0.6-4.0 at % Mg content have been synthesized. Phase composition of ceramics has been investigated by X-ray diffraction.
В.Г. Кутин, Е.Е. Куприянов, А. Апрелева, В.А. Кульбачинский, И.Е. Корсаков, Т.Ю. Киселева, Ж.Т. Исмаилов   +6 more
doaj   +1 more source

Effect of synthesis duration on heat and charge transport in polycrystalline CuCr1-xMgxO2

Қарағанды университетінің хабаршысы. Физика сериясы, 2022
Magnesium-doped polycrystalline ceramic samples of cooper chromite (I) have been prepared by solid phase synthesis. Phase composition and crystal structure of synthesis have been investigated by X-ray diffraction.
В.А. Кульбачинский, В.Г. Кутин, И.Е. Корсаков, Е.Е. Куприянов, Ж.Т. Исмаилов   +4 more
doaj   +1 more source

Applications and Preparation Methods of Copper Chromite Catalysts: A Review

Bulletin of Chemical Reaction Engineering & Catalysis, 2011
In this review article various applications and preparation methods of copper chromite catalysts have been discussed. While discussing it is concluded that copper chromite is a versatile catalyst which not only catalyses numerous processes of commercial ...
Ram Prasad, Pratichi Singh
doaj   +1 more source