Results 71 to 80 of about 240,998 (304)

Ideal Molecular Sieving with a Dense MOF for Helium Upgrading with Highly Diffusion Selective Mixed Matrix Membranes

open access: yesAdvanced Functional Materials, EarlyView.
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

Characteristics of occurrence and distribution rule of deep coalbed methane in supercritical state

open access: yesMeitan kexue jishu
Deep Coalbed methane(CBM) has become an important direction for gas storage and production, but its original occurrence state of adsorbed gas and free gas and distribution law under different geological conditions are unclear, which restricts the ...
Lihong ZHOU   +7 more
doaj   +1 more source

Lattice model of gas condensation within nanopores

open access: yes, 2002
We explore the thermodynamic behavior of gases adsorbed within a nanopore. The theoretical description employs a simple lattice gas model, with two species of site, expected to describe various regimes of adsorption and condensation behavior.
A. J. Liu   +27 more
core   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

open access: yesAdvanced Functional Materials, EarlyView.
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

Graphene: Gas Detector [PDF]

open access: yes, 2013
The resistivity of graphene is sensitive to the presence of gas molecules adsorbed on it. Since graphene is one atom thick, a gas detector made from it might be sensitive to the presence of even single molecules of gas.
Bibler, Christina A., Lambert, Kyel
core   +1 more source

Prewetting transitions of Ar and Ne on alkali metal surfaces

open access: yes, 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

Formation of Potential Interstellar Noble Gas Molecules in Gas and Adsorbed Phases [PDF]

open access: yesACS Omega, 2016
The discovery of naturally occurring ArH+ in various regions of the interstellar medium has shown the need for more understanding of the reactions that lead to covalently bonded noble gas molecules. The test comes with trying to predict the formation of other small noble gas molecules.
Gerald T. Filipek, Ryan C. Fortenberry
openaire   +3 more sources

Lipid Nanoparticles for the Delivery of CRISPR/Cas9 Machinery to Enable Site‐Specific Integration of CFTR and Mutation‐Agnostic Disease Rescue

open access: yesAdvanced Functional Materials, EarlyView.
Lipid nanoparticles (LNPs) are optimized to co‐deliver Cas9‐encoding messenger RNA (mRNA), a single guide RNA (sgRNA) targeting the endogenous cystic fibrosis transmembrane conductance regulator (CFTR) gene, and homologous linear double‐stranded donor DNA (ldsDNA) templates encoding CFTR.
Ruth A. Foley   +12 more
wiley   +1 more source

Geological characteristics and resource potential of deep coalbed methane in Guizhou

open access: yesMeitan xuebao
Accelerating the exploration and development of deep ( > 1 000 m)coalbed methane (CBM) resources is an important way for the large-scale development of CBM and an important development direction in recent years. Guizhou Province is rich in CBM resources,
Zhaobiao YANG   +12 more
doaj   +1 more source

First-principles investigation of adsorption behaviors of small molecules on penta-graphene

open access: yesNanoscale 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

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