نتایج جستجو برای: nonaqueous solvent
تعداد نتایج: 56507 فیلتر نتایج به سال:
Platinum group metals (PGMs) are important for the manufacture of advanced materials in field catalysts and electronic devices. Since chemical properties PGMs very similar to each other, hydrometallurgical processes should be employed recover with high purity from either ores or secondary resources. In PGMs, first step is dissolution PGMs. For this purpose, inorganic acid solutions oxidizing ag...
We highlight the status of, and propose future approaches for, rheological, electrochemical, spectroscopic characterization of concentrated redoxmer electrolytes for energy storage, with an emphasis on nonaqueous redox flow batteries.
The behavior of Lewis acidic metal ions in multimetallic systems has become a subject intense interest recent years. Parametrizing the these nonaqueous conditions, commonly used field, is challenging due to lack direct measures acidity polar organic solvents. Here, we report use triphenylphosphine oxide (TPPO) as 31P nuclear magnetic resonance (NMR) probe quantify library triflate salts using G...
Graphene nanosheets (GNSs) were synthesized and used as cathode active materials in a nonaqueous lithium-oxygen battery. The GNSs electrode delivered an extremely high discharge capacity in comparison to carbon powders, which is attributed to its unique morphology and structure.
چکیده ندارد.
Unlike the more established lithium-ion based energy storage chemistries, the complex intercalation chemistry of multivalent cations in a host lattice is not well understood, especially the relationship between the intercalating species solution chemistry and the prevalence and type of side reactions. Among multivalent metals, a promising model system can be based on nonaqueous Zn ion chemistry...
در این تحقیق، ثابت¬های تشکیل (kf) و توابع ترمودینامیکی (?h و?s) واکنش¬های کمپلکس شدن برخی از یون¬های فلزات واسطه) cu2+‘cd2+‘co2+‘ni2+‘hg2+‘zn+2و(ag+در حلال استونیتریل ودر دماهای مختلف با مشتقات لیگاندهای تری آزن (l1-l2-l3-l4) وهمچنین با لیگاند مشتق بی پیریدین((lr بااستفاده از روش¬های هدایت سنجی¬واسپکتروفتومتری تعیین شده است. l1: (e)-1و3- بیس(2-اتوکسی فنیل)تری آز-1- ان l2 : (e)-3-(4-کلروفنیل)-1-...
Low-temperature and ambient-temperature nonaqueous stacking techniques in capillary electrophoresis (CE) are described for the first time. A low-temperature bath was used to control the temperature from ambient to subzero degrees, by which a novel hyphenated method, low-temperature bath-nonaqueous capillary electrophoresis stacking (LTB-NACE stacking) is demonstrated. 3,4-Methylenedioxymethamph...
Interfacial activation-based molecular (bio)-imprinting (IAMI) has been developed to rationally improve the performance of lipolytic enzymes in nonaqueous environments. The strategy combinedly exploits (i) the known dramatic enhancement of the protein conformational rigidity in a water-restricted milieu and (ii) the reported conformational changes associated with the activation of these enzymes...
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