Electrophysical Properties and Heat Capacity of a Porous Carbon Material from Coal of the Maikube Basin

Ermagambet, B. T.; Kasenov, B. K.; Казанкапова, М. К.; Nurgaliyev, N. U.; Kassenova, Zh.M.; Kuanyshbekov, E. E.; Nauryzbaeva, A. T.

doi:10.3103/s0361521920030039

Cited by 4 publications

(2 citation statements)

References 7 publications

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“…Coal samples were taken from five different points of the Maikube brown coal basin, including the Shoptykol, Sarykol, and Taldykol deposits. The Maikube section has a design capacity of 20 million t/year (Ermagambet et al, 2020). The coals of the basin are humus, brown, with a high degree of carbonification (B3) and medium ash (25-28%).…”

Section: Coal Samplesmentioning

confidence: 99%

Physico-Сhemical Parameters of Humic Substances of Brown Coal and their Effect on the Growth of Phoenix dactylifera

Konysbaeva,

Yermagambet,

Kassenova

et al. 2023

OnLine Journal of Biological Sciences

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The motivation for the study was the need to obtain data on the effect of humic acids isolated from brown coal on soil fertility and plant development. In our study, we conducted experiments with plants to isolate humic substances from brown coal and study its physicochemical properties and the effect of the resulting fraction on the growth of Phoenix dactylifera date palm plants in laboratory conditions. The isolated humic acids had a density of 1.0416 g/cm 3 and the dynamic viscosity was 1.84*10 -3 Pa*s. The mass fraction of humic substances was 56%. As a result, when watering date palm plants with a 1% solution of humic substances, plant height increased by 41.5 in 1 month, leaf width by 80, and leaf length by 15%, compared with the control variant. The results of physicochemical experiments prove that humic substances from brown coal promote the level of plant nutrition.

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Section: Coal Samplesmentioning

confidence: 99%

Physico-Сhemical Parameters of Humic Substances of Brown Coal and their Effect on the Growth of Phoenix dactylifera

Konysbaeva,

Yermagambet,

Kassenova

et al. 2023

OnLine Journal of Biological Sciences

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“…CNTs can be considered as a unique capacity for storing substances in a gaseous, liquid or even solid state [2][3][4], since the graphite shell provides a fairly good protection of the material contained in it from external chemical or mechanical stress. They have found application for obtaining high-temperature heat-insulating composite materials [5,6], modified electrodes [7,8], sorbents [9], nanofibers [10] of catalytic systems [11][12], as well as in medicine, security and defense devices , devices for the generation and storage of electricity, transport, communications, computer technology, building materials [13]. Among the most important properties of CNTs, the relationship between the geometric structure of a nanotube and its electronic characteristics should be mentioned first of all [14][15][16].…”

mentioning

confidence: 99%

Synthesis of Carbon Nanotubes by the Electric Arc-Discharge Method

Yermagambet¹,

Казанкапова²,

Muratbekovna³

et al. 2020

OF THE ACADEMY OF SCIENCES OF THE REPUBLIC OF KAZAKHSTAN

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The paper presents the synthesis of carbon nanotubes (CNTs) by the method of electric arc-discharge. To obtain CNTs, the process of an electric arc-discharge of graphite was carried out; the current strength at a constant voltage of 50 V was 120, 150, 170, 200 A (inert medium - argon). Using the methods of electron microscopy, BET and Raman scattering, the chemical composition, specific surface area were determined, and the surface morphology of the obtained samples was studied. The results of determining the specific surface area and pore volume show that with increasing current strength, the specific surface area and specific pore volume increase from 25.450 to 159.737 m2/g and from 0.011 cm3/g to 0.068 cm3/ g, respectively. Electron microscopic images show CNT particles with a diameter of 58 to 370 nm, which are rolled into a single, seamless, cylindrical shape.

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Development of Technology for Producing Complex Boron-Containing Aluminum-Silicon Ferroalloy

Akberdin,

Kim,

Tolymbekova

et al. 2023

Metallurgist

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Electrophysical Properties and Heat Capacity of a Porous Carbon Material from Coal of the Maikube Basin

Cited by 4 publications

References 7 publications

Physico-Сhemical Parameters of Humic Substances of Brown Coal and their Effect on the Growth of Phoenix dactylifera

Physico-Сhemical Parameters of Humic Substances of Brown Coal and their Effect on the Growth of Phoenix dactylifera

Synthesis of Carbon Nanotubes by the Electric Arc-Discharge Method

Development of Technology for Producing Complex Boron-Containing Aluminum-Silicon Ferroalloy

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