Novel preparation of highly photocatalytically active copper chromite nanostructured material via a simple hydrothermal route. [PDF]
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 +3 more
doaj +2 more sources
Pyrazine synthesis: a century-long evolution from condensation to modern catalytic strategies [PDF]
Pyrazine (1,4-diazabenzene) is a privileged nitrogen-containing heterocycle of considerable importance in pharmaceuticals, food flavourings, agrochemicals, and functional materials.
Bingyang Wang +7 more
doaj +2 more sources
The influence of strontium oxide promoter on green methanol fuel production over Cu-Zn/Cr2O3 catalysts via CO2 hydrogenation [PDF]
Climatic changes have been emerged as the key concerns that must be tackled in recent decades. One of the prominent climatic disasters is the phenomenon of global warming caused by unwarranted emissions of greenhouse gases mainly carbon dioxide.
Israf Ud Din +6 more
doaj +2 more sources
Flux Enhancement in Hybrid Pervaporation Membranes Filled with Mixed Magnetic Chromites ZnCr2Se4, CdCr2Se4 and CuCr2Se4 [PDF]
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 +4 more
doaj +2 more sources
Significantly Enhanced Thermal Decomposition of Mechanically Activated Ammonium Perchlorate Coupling with Nano Copper Chromite [PDF]
Dongdong Zhang +9 more
doaj +2 more sources
Catalytic neutralization of gas emissions in the manufacture of pharmaceutical preparations [PDF]
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 +4 more
doaj +1 more source
NEW DATA ON MINERALOGY OF THE SUGUR COPPER DEPOSIT, SOUTH URALS [PDF]
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 +2 more
doaj +1 more source
Thermal analysis study of ammonium nitrate in the presence of NiCuCr2O4 additive
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]
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 +6 more
openaire +2 more sources
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 +6 more
doaj +1 more source

