Sep 13, 2022 · Motivated by high Li Coulombic efficiency (CE) achieved with electrolytes featuring the bis (fluorosulfonyl)imide (FSI –) anion, this work examined chemically related sulfonyl/sulfamoyl fluoride additives to correlate FSI – -relevant structural features with CE.

Oct 18, 2017 · We demonstrate that the addition of highly fluorinated HFEs to the solvate yields better capacity retention compared to that of less fluorinated HFE cosolvents. Raman and NMR spectroscopy coupled with ab initio molecular dynamics simulations show that HFEs exhibiting a higher degree of fluorination coordinate to Li + at the expense of MeCN ...

results clearly show that DOL possesses higher solvating power towards lithium than BTFE. TFEiBE-based electrolyte are displayed in Tables S2 and S3, respectively.

Jun 20, 2012 · In this study, we report the preparation of a β-CD IC, including a HFE molecule for the first time, and clarify the structural properties using the 19 F MAS and 1 H (19 F) → 13 C CP MAS NMR, and wide-angle X-ray diffraction (WAXD) techniques.

Jun 19, 2020 · In this work, we develop a novel strategy to suppress polysulfide dissolution using hydrofluoroethers (HFEs) with bi-functional, amphiphlic surfactant-like design: a polar lithiophilic “head” attached to a fluorinated lithiophobic “tail.”

Jan 1, 2022 · In this study, we fully validated the efficacy of the HCE dilution strategy over a wide temperature range (5–60 °C) and elucidated the underlying impact of operating temperature on LMA stabilization.

There is a higher chemical shift of DME after introducing the HFE, demonstrating the decreased shielding effect of Li + for the DME solvent. In addition, the same downfield shift of 1 H NMR for the -CH 2 CH 3 in the DME and D'H’ pure solvents demonstrates the existence of an interaction between HFE and DME (Fig. S6b) [32, 33].

Download scientific diagram | Structural isomers of HFE-7100 analysed by 19 F NMR from publication: Influence of Isomeric Composition and Sample Handling on the Liquid Density of...

Hereditary hemochromatosis is an iron-overload disease most often arising from a mutation in the Homeostatic Fe regulator (HFE) gene. HFE organs become overloaded with iron which causes damage. Iron-overload is commonly detected by NMR imaging, but the spectroscopic technique is insensitive to diama …

Abstract: The conformational changes of hydrofluoroether (HFE)/ CD inclusion complex (IC) was investigated at elevated temperatures by solid-state 19F MAS NMR. The broad F peaks of HFE/ CD were shifted to higher frequencies by 2~4 ppm compared to those of neat HFE. Thermal gravimetric analysis showed