نتایج جستجو برای: aqueous electrolyte
تعداد نتایج: 108670 فیلتر نتایج به سال:
In this work, existing and modified activity coefficient models are examined in order to assess their capabilities to describe the properties of aqueous solution droplets relevant in the atmosphere. Five different water-organicelectrolyte activity coefficient models were first selected from the literature. Only one of these models included organics and electrolytes which are common in atmospher...
Graphene is a promising material for applications in aqueous electrolyte environments. To explore the impact of such environments on graphene’s electrical properties, we performed Hall bar measurements on electrolyte-gated graphene. Assuming a Drude model, we find that the room temperature carrier mobility reaches 7,000 cm 2 /Vs, the highest mobility recorded for graphene in an aqueous electrol...
Electrostatic stabilization is reduced in its efficiency in an electrolyte-containing environment. The effect of electrolyte concentration is mostly described as negative factor for dispersion stabilization. Usually, zeta potential and physical stability decrease at increasing electrolyte concentration. The purpose of the present study was to measure the surface properties of nanotubes in aqueo...
Rechargeable aqueous Zn/MnO2 battery chemistry in a neutral or mildly acidic electrolyte has attracted extensive attention recently because all the components (anode, cathode, and electrolyte) in a Zn/MnO2 battery are safe, abundant, and sustainable. However, the reaction mechanism of the MnO2 cathode remains a topic of discussion. Herein, we design a highly reversible aqueous Zn/MnO2 battery w...
The aqueous and ethanolic extract of leaves of Coleus aromaticus was evaluated for diuretic activity. Both extracts were evaluated by determination of urine volume and electrolyte concentration in albino rats. Results revealed that both the aqueous and ethanolic extract at dose 500mgl kg showed significant diuretic activity by increasing the total volume of urine and concentration electrolyte. ...
A saturated aqueous solution of sodium perchlorate (SSPAS) was found to be electrochemically superior, because the potential window is remarkably wide to be approximately 3.2 V in terms of a cyclic voltammetry. Such a wide potential window has never been reported in any aqueous solutions, and this finding would be of historical significance for aqueous electrolyte to overcome its weak point tha...
Leveraging the most recent success in expanding the electrochemical stability window of aqueous electrolytes, in this work we create a unique Li-ion/sulfur chemistry of both high energy density and safety. We show that in the superconcentrated aqueous electrolyte, lithiation of sulfur experiences phase change from a high-order polysulfide to low-order polysulfides through solid-liquid two-phase...
Thin film supercapacitors were fabricated using printable materials to make flexible devices on plastic. The active electrodes were made from sprayed networks of single-walled carbon nanotubes (SWCNTs) serving as both electrodes and charge collectors. Using a printable aqueous gel electrolyte as well as an organic liquid electrolyte, the performances of the devices show very high energy and pow...
In present study, molecular dynamics simulation of Cadmium (II), Lead (II) and Copper (II) removal from aqueous electrolyte solutions using the ion-exchange process with the zeolite particles was done. The results showed that, most of the particles had the highest affinity of ion exchanging with Lead (II) and the lowest affinity with Copper (II). The calculated mean ion-exchange ratios showed t...
در این تحقیق فرآیند رسوب، خواص، ریز ساختار و رفتار تریبولوژی پوشش های کامپوزیتی الکترولس ni-p-ptfe بدست آمده از روش غیر شناوری با هدف بهبود مقاومت سایشی و کاهش ضریب اصطکاک پوشش های الکترولس ni-p مورد مطالعه و بررسی قرار گرفت. به منظور ایجاد پوشش کامپوزیتی مذکور به روش غیر شناوری از دو روش اسپری و برس کردن (brushing) ذرات ptfe استفاده شد. بدین ترتیب که، در روش اسپری ابتدا سطح نمونه هایی از فولاد...
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