Results 81 to 90 of about 243,379 (303)
First-principles investigation of adsorption behaviors of small molecules on penta-graphene
Nanoscale Research Letters, 2018 The gas-adsorption behaviors of small molecules CO, H2O, H2S, NH3, SO2, and NO on pristine penta-graphene (PG) were investigated using first-principles calculations to explore their potential for use as advanced gas-sensing materials.
Hongbo Qin +3 more
doaj +1 more source
Quantum Drag Forces on a Sphere Moving Through a Rarefied Gas
, 2004 As an application of quantum fluid mechanics, we consider the drag force exerted on a sphere by an ultra-dilute gas. Quantum mechanical diffraction scattering theory enters in that regime wherein the mean free path of a molecule in the gas is large ...
A. Widom +18 more
core +1 more source
Gas and surface diffusion in modified γ-alumina systems [PDF]
, 1989 The transport of pure gases through a microporous membrane is described. The alumina-based membrane (pores 2.5-4 nm) is suitable for Knudsen diffusion separation.
Burggraaf, A.J. +2 more
core +2 more sources
Photoswitchable Conductive Metal–Organic Frameworks
Advanced Functional Materials, Volume 36, Issue 43, 29 May 2026.A conductive material where the conductivity can be modulated remotely by irradiation with light is presented. It is based on films of conductive metal–organic framework type Cu3(HHTP)2 with embedded photochromic molecules such as azobenzene, diarylethene, spiropyran, and hexaarylbiimidazole in the pores.
Yidong Liu +5 more
wiley +1 more source
How dense is the gas adsorbed in nanopores?
Microporous and Mesoporous Materials, 2020 Abstract Unlike macroscopic objects, any system of nanometric size shows characteristics that strongly depend on its size and geometric form. It is mainly because the major part of atoms (or molecules) of nano-object is located at its surface, and their cohesive energy is smaller than for the atoms in the bulk.
Lucyna Firlej +3 more
openaire +2 more sources
Theory, Simulation and Nanotechnological Applications of Adsorption on a Surface with Defects [PDF]
, 1998 Theory of adsorption on a surface with nanolocal defects is proposed. Two efficacy parameters of surface modification for nanotechnological purposes are introduced, where the modification is a creation of nanolocal artificial defects. The first parameter
A.M. Popov +33 more
core +2 more sources
Advanced Functional Materials, Volume 36, Issue 43, 29 May 2026.The separation of Helium gas from natural gas is challenging but highly important. MIL‐116(Ga), a “non‐porous” metal–organic framework is used as a molecular sieve to separate He from CH4. Druse‐like MIL‐116(Ga) particles are integrated into polysulfone mixed matrix membranes.
Ayisha Komal +10 more
wiley +1 more source
Prewetting transitions of Ar and Ne on alkali metal surfaces
, 1999 We have studied by means of Density-Functional calculations the wetting properties of Ar and Ne adsorbed on a plane whose adsorption properties simulate the Li and Na surfaces. We use reliable ab-initio potentials to model the gas-substrate interactions.
A. Chizmeshya +55 more
core +1 more source
Nonequilibrium transport equations and ab initio study of adsorption processes on carbon nanotubes [PDF]
, 2014 In a theoretical study of gas adsorption on carbon nanotubes (CNT) nonequilibrium processes of ionization, polarization, surface diffusion and desorption of atoms are considered self-consistently.
Jurga, S. +2 more
core +2 more sources
Advanced Functional Materials, Volume 36, Issue 43, 29 May 2026.This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner +9 more
wiley +1 more source