Results 241 to 250 of about 14,636 (294)

High‐Energy‐Density Redox Flow Batteries: Mechanisms, Design Strategies, and Recent Progress

Chemistry – A European Journal, Volume 32, Issue 24, 23 June 2026.
ABSTRACT The inherent intermittency of energy sources such as solar and wind power hinders the transition to renewable energy, necessitating advanced energy storage solutions. Enhancing energy density is crucial for lowering system costs and enabling large‐scale deployment.
Xiaolian Zhao, Jiaxin Yu, Nannan Jia, Chuzhang Hong, Yue Luo, Wantong Jing, Zhiming Feng, Xinhua Liu, Rui Tan   +8 more
wiley   +1 more source

Antibacterial Activity of Heteropolytungstates Against Proteus mirabilis

European Journal of Inorganic Chemistry, Volume 29, Issue 18, 22 June 2026.
We investigated the in vitro antibacterial activity of several heteropolytungstates against P. mirabilis, a drug‐resistant pathogen. All tested polyanions inhibited bacterial growth, with the Preyssler–Pope–Jeannin polyanion P5W30 exhibiting the highest activity (MIC = 0.78 mg/mL).
Nour El Ghouch, Ahmad Asaad, Rana El Hajj, Sahar Khandan, Matthias S. Ullrich, Ulrich Kortz   +5 more
wiley   +1 more source

Innovating Electrosynthesis From Metal Electrodeposition to Organic Chemistry: Deep Eutectic Solvents as Efficient and Sustainable Media

ChemSusChem, Volume 19, Issue 11, 15 June 2026.
This review analyzes deep eutectic solvents (DESs) as efficient media for both organic and inorganic electrosynthesis. The improvements in terms of synthetic opportunities and sustainability are discussed, by exploring the multiple roles of DESs as solvents, electrolytes, and promoters, enabling effective and selective electrosynthesis under mild and ...
Cristiana Margarita, Stefano Nejrotti, Alejandro Leal‐Duaso, Marta Feroci, Alessandra Sanson, Claudia Barolo, Matteo Bonomo   +6 more
wiley   +1 more source

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Quaternary ammonium salts as inhibitors of acetylcholine esterase

Biochimica et Biophysica Acta, 1951
Abstract Quaternary ammonium salts show practically no inhibition of the hydrolytic action of liver esterase. They protect ACh estrase against inrreversible combination with TEPP, although the two types of inhibitors attach themselves to different points of the active surface. Quaternary ammonium salts also inhibit the hydrolysis of uncharged esters (
F, BERGMANN, A, SHIMONI
openaire   +3 more sources

SALTING-IN BY QUATERNARY AMMONIUM SALTS

Canadian Journal of Chemistry, 1965
The solubility of benzene in substituted quaternary ammonium bromide solutions has been measured by ultraviolet absorption. The solubility is found to increase in the presence of such salts as R4−nHnN+Br− where R is an alkyl group and n varies between 0 and 3; a smooth transition in behavior is observed when passing from simple salts to long-chained ...
J. E. Desnoyers, G. E. Pelletier, C. Jolicoeur   +2 more
openaire   +1 more source

Quaternary ammonium amalgams as Zintl ion salts and their use in the synthesis of novel quaternary ammonium salts

Journal of the American Chemical Society, 1986
Etude de la reduction electrochimique de sels de tetrabutylammonium sur une electrode de platine recouverte de mercure. Formation de l'amalgame de tetrabutylammonium(I).
E, Garcia, A H, Cowley, A J, Bard
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The synthesis of quaternary ammonium salts from ammonium salts and dialkyl carbonate

Chemical Communications, 2006
Quaternary ammonium salts were synthesized from ammonium salts and dialkyl carbonates over an ionic liquid catalyst 1-ethyl-3-methylimidazolium bromide.
Zhuoqun, Zheng, Tinghua, Wu, Xiaoping, Zhou   +2 more
openaire   +2 more sources

Hydrate Plug Prevention by Quaternary Ammonium Salts

Energy & Fuels, 2005
The use of low-dosage inhibitors is an alternative to thermodynamic inhibitors to prevent gas hydrates from plugging oil production pipelines. In this work, quaternary ammonium salts (QAs) with different structures were tested as hydrate plug inhibitors on model systems containing 1/1/4/X proportions (by weight) of water/THF/oil/QA systems.
Zanota, Marie-Line, Dicharry, Christophe, Graciaa, Alain   +2 more
openaire   +2 more sources

NMR enantiodifferentiation of quaternary ammonium salts of Tröger base

Chirality, 2009
AbstractHexacoordinated phosphorus BINPHAT anion 1 is an efficient NMR chiral solvating agent for quaternary ammonium cations (quats) derived from Tröger base leading to large separations of the proton signals of the enantiomers and even in polar solvent media such as CD3CN (ΔΔδ up to 0.12 ppm).
Michon, Christophe, Goncalves-Farbos, Maria-Héléna, Lacour, Jérôme   +2 more
openaire   +5 more sources

Polycyclic Quaternary Ammonium Salts.

1954
PhD ; Pharmacology ; University of Michigan, Horace H. Rackham School of Graduate Studies ; http://deepblue.lib.umich.edu/bitstream/2027.42/181374/2/0011296 ...
openaire   +2 more sources