Results 101 to 110 of about 1,029,875 (287)

Mathematical Modeling of Nonstationary Separation Processes in Gas Centrifuge Cascade for Separation of Multicomponent Isotope Mixtures

open access: yesMATEC Web of Conferences, 2016
This article presents results of development of the mathematical model of nonstationary separation processes occurring in gas centrifuge cascades for separation of multicomponent isotope mixtures. This model was used for the calculation parameters of gas
Orlov Alexey   +2 more
doaj   +1 more source

Suppressing hydrogen peroxide generation to achieve oxygen-insensitivity of a [NiFe] hydrogenase in redox active films

open access: yesNature Communications, 2020
Oxidative degradation impedes practical applications of highly active but fragile catalysts. Here the authors show that combining a protection matrix for O2 reduction and hydrogen peroxide decomposition stabilizes highly O2-sensitive hydrogenase in the ...
Huaiguang Li   +6 more
doaj   +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

Advanced intermediate temperature sodium–nickel chloride batteries with ultra-high energy density

open access: yesNature Communications, 2016
Sodium metal halide batteries are attractive technologies for stationary electrical energy storage. Here, the authors report that planar sodium-nickel chloride batteries operated at an intermediate temperature of 190 °C display larger energy densities ...
Guosheng Li   +6 more
doaj   +1 more source

Three reversible states controlled on a gold monoatomic contact by the electrochemical potential

open access: yes, 2008
Conductance of an Au mono atomic contact was investigated under the electrochemical potential control. The Au contact showed three different behaviors depending on the potential: 1 $G_{0}$ ($G_{0}$ = $2e^{2}/h$), 0.5 $G_{0}$ and not-well defined values ...
A. Zangwill   +6 more
core   +1 more source

Understanding and Optimizing Li Substitution in P2‐Type Sodium Layered Oxides for Sodium‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous 
Mingfeng Xu   +5 more
wiley   +1 more source

Electrochemical enzyme-immunoassay

open access: yesJournal of Research of the National Bureau of Standards, 1988
"Immunoassay" defines the body of techniques which use the antibody (Ab) macromolecule, usually of the IgG class, for the detection and quantitation of an enormous range of simple and complex antigen (Ag) molecules. The success of the methods relies on both the specificity and formation constant of the Ab used, and the ability to detect the interaction
Halsall, H. Brian   +5 more
openaire   +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

Is Cobalt in Li‐Rich Layered Oxides for Li‐Ion Batteries Necessary?

open access: yesChemElectroChem
Cobalt is considered an essential element for layered cathode active materials supporting enhanced lithium‐ion conductivity and structural stability.
Hyeongseon Choi   +8 more
doaj   +1 more source

Revealing of the Activation Pathway and Cathode Electrolyte Interphase Evolution of Li-Rich 0.5Li2MnO3·0.5LiNi0.3Co0.3Mn0.4O2 Cathode by in Situ Electrochemical Quartz Crystal Microbalance. [PDF]

open access: yes, 2019
The first-cycle behavior of layered Li-rich oxides, including Li2MnO3 activation and cathode electrolyte interphase (CEI) formation, significantly influences their electrochemical performance. However, the Li2MnO3 activation pathway and the CEI formation
Deng, Ya-Ping   +12 more
core  

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