Results 211 to 220 of about 20,997 (254)

Redox chemistry of an anionic dithiolene radical

Dalton Transactions, 2019
The redox reactivity of a stable anionic dithiolene radical has been explored, giving the corresponding dithiolate and neutral dithiolene dimers.
Yuzhong Wang, Yaoming Xie, Pingrong Wei, Henry F. Schaefer, Gregory H. Robinson   +4 more
openaire   +2 more sources

Insights of the anionic redox in P2–Na0.67Ni0.33Mn0.67O2

Nano Energy, 2020
Abstract The search for high-energy batteries has promoted intense attention to anionic redox in layered transition metal oxides because of their ability of delivering much higher capacity than traditional cathodes. P2–Na0.67Ni0.33Mn0.67O2 electrode exhibits outstanding air-stability and high average potential.
Wenhua Zuo, Fucheng Ren, Qinghao Li, Xuehang Wu, Fei Fang, Xiqian Yu, Hong Li, Yong Yang   +7 more
openaire   +1 more source

Simultaneous anionic and cationic redox

Nature Energy, 2017
It is challenging to unlock anionic redox activity, accompanied by full utilization of available cationic redox process, to boost capacity of battery cathodes. Now, material design by tuning the metal–oxygen interaction is shown to be a promising solution.
Jung, Sung-Kyun, Kang, Kisuk
openaire   +2 more sources

Redox Active Cage for the Electrochemical Sensing of Anions

Inorganic Chemistry, 2008
The tripodal system [1]3+ forms a 1:1 complex with CoII in which the metal is octahedrally coordinated by three bpy fragments. The [CoII(1)]5+ complex provides a cavity suitable for solvent or anion inclusion. X-ray diffraction studies on the crystalline complex salt of formula [CoII(1)...H2O]Cl(PF6)(4).2MeCN have shown that a water molecule is ...
AMENDOLA, VALERIA, BOIOCCHI, MASSIMO, B. Colasson, FABBRIZZI, LUIGI, MONZANI, ENRICO, M. J. Douton Rodriguez, C. Spadini   +6 more
openaire   +3 more sources

Cationic and anionic redox in lithium-ion based batteries

Chemical Society Reviews, 2020
This review will present the current understanding, experimental evidence and future direction of anionic and cationic redox for Li-ion batteries.
Matthew Li, Tongchao Liu, Xuanxuan Bi, Zhongwei Chen, Khalil Amine, Cheng Zhong, Jun Lu   +6 more
openaire   +2 more sources

Nitro group as a redox switch in urea-based receptors of anions

Journal of Electroanalytical Chemistry, 2021
Abstract A nitro group was used as an electrochemical binding/release switch in urea-based receptors for anions. The oxidized and reduced forms of the receptors were thoroughly studied, evaluating the impact of structural features on the binding affinity upon redox modification.
Karolína Salvadori, Jiří Ludvík, Ludmila Šimková, Pavel Matějka, Petra Cuřínová   +4 more
openaire   +3 more sources

Anion Exchange Membranes with Dynamic Redox-Responsive Properties

ACS Applied Materials & Interfaces, 2019
Redox-responsive anion exchange membranes were developed using photoinitiated free-radical polymerization and reversible oxidation and reduction of viologen. The membranes were formulated using poly(ethylene glycol diacrylate) and diurethane dimethacrylate oligomers, dipentaerythritol penta-/hexa-acrylate cross-linker, photoinitiators, and 4 ...
Clara Capparelli, Carlos R. Fernandez Pulido, Raymond Lopez-Hallman, Geoffrey M. Geise, Michael A. Hickner   +4 more
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The Standard Redox Potential of the Phenyl Radical/Anion Couple

Journal of the American Chemical Society, 2003
The voltammogram of aryldiazonium tetrafluoroborates in acetonitrile (ACN), at low concentration, shows a first one-electron wave followed at a more negative potential by a small second wave; this last one corresponds to the reduction of the radical formed at the level of the first wave.
Claude P, Andrieux, Jean, Pinson
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(Plenary) Anion Redox in Metal Oxides

ECS Meeting Abstracts, 2019
Traditional Li-ion positive electrodes such as layered LiTMO2 (TM = Co, Ni, Mn) store lithium ions and electrons largely by employing the cationic redox of the transition metal (TM), yielding a capacity of ~140 mAh g-1 upon charging to 4.2 VLi. Recent advances on Li-overstoichiometric layered materials Li1+x TM 1 ...
Yang Shao-Horn, Yang Yu, Nenian Charles
openaire   +1 more source

“Wurster-Type” Ureas as Redox-Active Receptors for Anions

The Journal of Organic Chemistry, 2009
Four redox-active receptors, 1-4, based on the incorporation of p-phenylenediamine(s) within a urea framework, were synthesized, and the affinities of two for a series of anions were quantified through UV-vis and NMR spectroscopic studies. The structure of 1 was confirmed by X-ray crystallography.
John P, Clare, Anna, Statnikov, Vincent, Lynch, Andrew L, Sargent, John W, Sibert   +4 more
openaire   +2 more sources