Results 51 to 60 of about 234,921 (301)

Study on the Characteristics of Monolayer Water and Bound Water of Wheat Flour after Cold Plasma Treatment

open access: yesLiang you shipin ke-ji
To understand the cause for the increasing water absorption rate of wheat shorts after cold plasma treatment, a dynamic moisture adsorption instrument was used to measure the moisture sorption isotherms of samples treated with 120 W low-pressure strong ...
ZHAO Ming-hui   +5 more
doaj   +1 more source

IN SITU DRIFTS/MS STUDIES ON THE INTERACTION OF METHANOL AND ETHYL ACETATE OVER MG-LA CATALYST [PDF]

open access: yesQuímica Nova, 2020
The surface intermediates formed on the Mg-La catalyst (molar ratio 1:1) were studied through temperature-programmed desorption (TPD) and diffuse reflectance infrared Fourier transform spectroscopy coupled to mass spectrometry (DRIFTS-MS) using methanol (
Adão S. Gonçalves   +2 more
doaj   +1 more source

The Effect of Adsorbent-Material Properties on PSA Based Oxygen Concentrators

open access: yesJournal of Physics: Conference Series, 2023
Abstract An oxygen concentrator is a technology for producing pure oxygen. By using the Pressure Swing Adsorption method, zeolite as an oxygen concentrator will absorb nitrogen in the free air and release oxygen as an output from the oxygen concentrator.
S N Hida   +4 more
openaire   +1 more source

Mechanism of efficient carbon monoxide oxidation at Ru(0001)

open access: yes, 1996
We performed density-functional theory calculations using the generalized gradient approximation for the exhange-correlation functional to investigate the unusual catalytic behavior of Ru under elevated gas pressure conditions for the carbon monoxide ...
Scheffler, M., Stampfl, C.
core   +1 more source

In Situ Constructed Magnetic Core‐Shell Hydrogen‐Bonded Organic Framework‐on‐Metal–Organic Framework Structure: an Efficient Catalyst for Peroxymonosulfate Activation

open access: yesAdvanced Functional Materials, EarlyView.
In this work, a magnetic core‐shell catalyst (HOF‐on‐Fe3O4/ZIF‐67) is successfully synthesized, consisting of a metal–organic framework (ZIF‐67) with magnetic Fe3O4 as the core and a porous hydrogen‐bonded organic framework (HOF) as the shell. The catalyst efficiently activated peroxymonosulfate, resulting in rapid and effective removal of water ...
Yingying Du   +4 more
wiley   +1 more source

Photoswitchable Conductive Metal–Organic Frameworks

open access: yesAdvanced Functional Materials, EarlyView.
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

Possible Structure of Surface Active Complexes in Molten CaO-SiO2-CaF2 Slags

open access: yesНаука и техника, 2005
A section area of silicon and oxygen complexes adsorbed at the boundary of “slag-gas” separation has been calculated in accordance with the concentration dependence of surface tension in molten slags.
V. F Sobolev, A. A. Chichko
doaj   +1 more source

Domain formation on oxidized graphene [PDF]

open access: yes, 2012
Using first-principles calculations within density functional theory we demonstrate that the adsorption of single oxygen atom results in significant electron transfer from graphene to oxygen.
Ciraci, S., Topsakal, M.
core   +2 more sources

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

Substrate strain tunes operando geometric distortion and oxygen reduction activity of CuN2C2 single-atom sites

open access: yesNature Communications, 2021
The rational design of single-atom catalysts is challenging. This work reveals a substrate-strain tuned geometry distortion of CuN2C2 single-atom site, which greatly boosts oxygen reduction activity by facilitating electron transfer to adsorbed O.
Guokang Han   +10 more
doaj   +1 more source

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