Phenomenological Kinetics of Real Gas-Adsorption-Systems: Isothermal Adsorption

2002 ◽  
Vol 27 (2) ◽  
Author(s):  
W. Rudzinski ◽  
T. Panczyk
Keyword(s):  
Gas Adsorption ◽  
Isothermal Adsorption ◽  
Real Gas ◽  
Kinetics Of ◽  
Adsorption Systems

scholarly journals Influence of microadditive of carbon dioxide on the kinetics of boiling-up of superheated w-pentane

2021 ◽  
Vol 2039 (1) ◽  
pp. 012027
Author(s):  
S A Perminov ◽  
E V Lipnyagov ◽  
M A Parshakova
Keyword(s):  
High Speed ◽  
Gas Adsorption ◽  
Glass Tube ◽  
Initial Value ◽  
Active Centers ◽  
High Speed Video ◽  
Inner Surface ◽  
Vertical Glass ◽  
Attainable Superheat ◽  
Kinetics Of

Abstract The effect of a low-boiling impurity (CO2 gas <1.5% mol) on the kinetics of boiling-up of superheated n-pentane in a vertical glass tube have been studied by high-speed video (2050 fps). The method of continuous pressure decrease from 2.00 to 0.10 MPa (in the temperature range of 100.2-145.1 °C), as well as the method of measuring the lifetimes of superheated liquids at 0.10 MPa (90.2-134.1 °C) have been used. The inner surface of the tube has two visible defects, one of which defines the boundary of the attainable superheat. After degassing the system, the defects of tube cease to play an appreciable role, the active centers are redistributed. The temperature of the attainable superheat increases from the initial value by 20 °C in tests with gas and by 10 °C in subsequent tests without it. The result obtained may be related to physical gas adsorption on the glass surface during the process of evacuation of the system.

Isothermal Adsorption Characteristics and Kinetics of Cr Ions onto Ettringite

2019 ◽  
Vol 34 (3) ◽  
pp. 587-595 ◽  
Author(s):  
Xin Wang ◽  
Suping Cui ◽  
Bilan Yan ◽  
Lan Wang ◽  
Yanhe Chen ◽  
...  
Keyword(s):  
Isothermal Adsorption ◽  
Adsorption Characteristics ◽  
Kinetics Of

scholarly journals First-Principles Investigation of the Adsorption Behaviors of CH2O on BN, AlN, GaN, InN, BP, and P Monolayers

Materials ◽  
2019 ◽  
Vol 12 (4) ◽  
pp. 676 ◽  
Author(s):  
Chuang Feng ◽  
Hongbo Qin ◽  
Daoguo Yang ◽  
Guoqi Zhang
Keyword(s):  
Charge Transfer ◽  
First Principles ◽  
Gas Adsorption ◽  
Indium Nitride ◽  
Single Layer ◽  
Boron Phosphide ◽  
Adsorption Behaviors ◽  
Gas Molecule ◽  
Adsorption Energies ◽  
Adsorption Systems

CH2O is a common toxic gas molecule that can cause asthma and dermatitis in humans. In this study the adsorption behaviors of the CH2O adsorbed on the boron nitride (BN), aluminum nitride (AlN), gallium nitride (GaN), indium nitride (InN), boron phosphide (BP), and phosphorus (P) monolayers were investigated using the first-principles method, and potential materials that could be used for detecting CH2O were identified. The gas adsorption energies, charge transfers and electronic properties of the gas adsorption systems have been calculated to study the gas adsorption behaviors of CH2O on these single-layer materials. The electronic characteristics of these materials, except for the BP monolayer, were observed to change after CH2O adsorption. For CH2O on the BN, GaN, BP, and P surfaces, the gas adsorption behaviors were considered to follow a physical trend, whereas CH2O was chemically adsorbed on the AlN and InN monolayers. Given their large gas adsorption energies and high charge transfers, the AlN, GaN, and InN monolayers are potential materials for CH2O detection using the charge transfer mechanism.

Kinetics of residual gas adsorption on Ge(111) surface in low-energy electron backscattering

2006 ◽  
Vol 252 (10) ◽  
pp. 3625-3631
Author(s):  
O.B. Shpenik ◽  
T.Yu. Popik ◽  
V.M. Feyer ◽  
Yu.V. Popik
Keyword(s):  
Gas Adsorption ◽  
Low Energy ◽  
Energy Electron ◽  
Electron Backscattering ◽  
Low Energy Electron ◽  
Residual Gas ◽  
Kinetics Of

Kinetics of Gas Adsorption as a Method of Area Determination

1951 ◽  
Vol 19 (2) ◽  
pp. 251-252 ◽  
Author(s):  
George Jura ◽  
Richard E. Powell
Keyword(s):  
Gas Adsorption ◽  
Kinetics Of ◽  
Area Determination

scholarly journals Carbon Nanostructures Doped with Transition Metals for Pollutant Gas Adsorption Systems

Molecules ◽  
2021 ◽  
Vol 26 (17) ◽  
pp. 5346
Author(s):  
J. M. Ramirez-de-Arellano ◽  
M. Canales ◽  
L. F. Magaña
Keyword(s):  
Carbon Nanotubes ◽  
Transition Metals ◽  
Carbon Nanostructures ◽  
Gas Adsorption ◽  
Chemical Warfare Agents ◽  
Specific Area ◽  
Chemical Warfare ◽  
Wide Range ◽  
Warfare Agents ◽  
Adsorption Systems

The adsorption of molecules usually increases capacity and/or strength with the doping of surfaces with transition metals; furthermore, carbon nanostructures, i.e., graphene, carbon nanotubes, fullerenes, graphdiyne, etc., have a large specific area for gas adsorption. This review focuses on the reports (experimental or theoretical) of systems using these structures decorated with transition metals for mainly pollutant molecules’ adsorption. Furthermore, we aim to present the expanding application of nanomaterials on environmental problems, mainly over the last 10 years. We found a wide range of pollutant molecules investigated for adsorption in carbon nanostructures, including greenhouse gases, anticancer drugs, and chemical warfare agents, among many more.

Sign in / Sign up

Export Citation Format

Share Document