The fabrication and investigation of n/CdS-p/CdTe-n/Si structures

Section: Fig 2 Scheme Of Relationship Between Linear and Phase Voltagesmentioning

confidence: 99%

Topic "Methods of connecting three-phase electric circuits" and its advantages of interdisciplinary training

Tulkinov

2023

“…Currently, chemists are working on several priorities for the process of obtaining ethylene from methane: the creation of catalysts with high efficiency, selectivity, activity, and stability for methane oxycondensation reaction; Numerous studies have been conducted to study in detail the kinetics and mechanism of the process of obtaining ethylene from methane [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Study of methane oxycondensation reaction (mn2o3)x∙ (na2moo4)y ∙ (zro2)z and textural characteristics of the catalyst

Fayzullayev,

Tursunova,

Nazarova

et al. 2023

In the study, the effect of temperature, methane: air ratio, specific volume velocity, and various other factors on the yield of target products, methane conversion, and process selectivity of the methane catalytic oxycondensation reaction were studied. The effect of volumetric velocity was studied at a temperature of 800°C and a volumetric ratio of CH4:air = 1:2. The effect of temperature on the oxycondensation reaction of methane was studied in the presence of a catalyst of optimal composition at intervals of 50°C in the range of 600–850°C, at a constant volumetric velocity (1000 h-1) and a ratio of CH4:air = 1:2. CN4: The effect of air ratio was studied at a temperature of 800°C and a volumetric velocity = 1000 h-1. As a result of kinetic studies, an improvement in process performance was observed with increasing contact time and temperature rise. An increase in the CH4:O2 ratio leads to a decrease in methane and oxygen conversion. The addition of ethane, ethylene, СО, and СО2 to the reactor has been shown to reduce the formation of products. The work aims to study the kinetic laws of the reaction of oxidation of methane in a catalyst containing (Mn2O3)x·(Na2MoO4)y ·(ZrO2)z and to evaluate the texture characteristics of the catalyst.

“…Carbon black is a widely used product with a special surface (1500 m 2 /g) and porosity, and it is widely produced in the industry [6][7][8]. Carbon black is used as a conductive filler for various types of batteries and electrodes of condensate [9].…”

Section: Introductionmentioning

confidence: 99%

Water adsorption on acetylene black carbon

Khudoynazarov

Nurmanov

Yakubov³

2023

Differential heat, isotherm, thermokinetics, and entropy of water adsorption on the black carbon were studied by the adsorption-calorimetric method at 303 K. The adsorption mechanism, type, and number of formed ion-molecular complexes were determined. Thermokinetics of adsorption on the black carbon and the law of migration of exchange cations were determined, and the adsorption energy of gases and vapors was calculated. The adsorption isotherm is described by the two-and three-dimensional mathematical equations of the volume-saturation theory of micro-pores (TVSM).