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Autor:
T. A. Yarkova, A. M. Gyul’maliev
Publikováno v:
Solid Fuel Chemistry. 55:8-13
The thermodynamic characteristics of the reactions of the potassium salts of humic acids with IIA group metal cations were calculated using the PM6 quantum-chemical method. It was found that the interaction of the phenolate anions of humic acids with
Publikováno v:
Solid Fuel Chemistry. 54:401-405
Methods for the production of metal–carbon nanoparticles of the core–shell type based on the formation of transition metal nanoparticles and a graphite-like shell on their surface containing to 50 graphene layers are considered. Various types of
Publikováno v:
Solid Fuel Chemistry. 54:232-238
The sorption properties of a modified ethylenediamine humate (EDA–H) sorbent toward Co2+ and Ni2+ metal ions are considered. The results of the influence of sorbent norm (0.05–2.0 g), process time (15–120 min), and metal concentration (0.005, 0
Publikováno v:
Solid Fuel Chemistry. 54:32-36
Peat was studied in order to assess the concentrations of heavy metals in it depending on the depth of occurrence. Genetically homogeneous peat layers with occurrence depths of 0–5, 5–35, 35–85, 85–140, 140–220, and 220–375 cm were analyz
Publikováno v:
Solid Fuel Chemistry. 53:289-293
A method for the synthesis of metal–carbon nanocomposites in which metal-centered particles of the core–graphite-like shell type are distributed in the bulk of an amorphous sp2-carbon matrix is proposed. Polyvinyl chloride (PVC) was used as a car
Publikováno v:
Solid Fuel Chemistry. 50:120-126
The increased metal-bearing capacity of coals from the Salga-Tabakh area in the north of the Lena Basin was established. In terms of the composition of rare-earth elements, they can be attributed to the collectors of the most expensive yttrium group.
Autor:
V. S. Solodovnichenko, R. I. Kvon, O. Yu. Podyacheva, V. A. Drozdov, Vladimir A. Likholobov, I. V. Anikeeva, Zinfer R. Ismagilov, Yu. G. Kryazhev
Publikováno v:
Solid Fuel Chemistry. 49:1-6
A new approach to the synthesis of hybrid carbon materials based on the use of reactive polyvinylenes as the precursors of carbon is proposed. The possibility of the incorporation of nitrogen- and metalcontaining modifying additives into the carbon s
Publikováno v:
Solid Fuel Chemistry. 48:364-370
A series of Pd/C catalysts (2–4 wt % Pd) with different particle sizes of the supported metal was prepared under varied conditions of the formation and surface deposition of the polynuclear hydroxo complexes (PHCs) of palladium(II) on powdered Sibu
Publikováno v:
Solid Fuel Chemistry. 48:251-259
Data on the reactions and processes occurring under the conditions of the alkaline activation of carbon substances—the production of activated carbons by the thermolysis of carbon substances in the presence of alkali metal hydroxides MOH—are summ
Publikováno v:
Solid Fuel Chemistry. 48:140-145
A model for the electrical conductivity of a heterogeneous system based on alkaline-earth metal carbonates and anthracite and graphite dispersions is proposed. The electrical properties of heterogeneous dispersions in the carbonates of alkaline-earth