نتایج جستجو برای: aqueous electrolyte

تعداد نتایج: 108670  

2005
T. Raatikainen

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...

2016
Morgan A. Brown Michael S. Crosser Matthew R. Leyden Yabing Qi Ethan D. Minot

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...

2016
Ewa Skwarek Yuliia Bolbukh Valentyn Tertykh Władysław Janusz

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...

Journal: :Journal of the American Chemical Society 2017
Wei Sun Fei Wang Singyuk Hou Chongyin Yang Xiulin Fan Zhaohui Ma Tao Gao Fudong Han Renzong Hu Min Zhu Chunsheng Wang

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...

2009
G.P. Choudhary

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. ...

2017
Hiroshi Tomiyasu Hirokazu Shikata Koichiro Takao Noriko Asanuma Seiichi Taruta Yoon-Yul Park

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...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2017
Chongyin Yang Liumin Suo Oleg Borodin Fei Wang Wei Sun Tao Gao Xiulin Fan Singyuk Hou Zhaohui Ma Khalil Amine Kang Xu Chunsheng Wang

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...

Journal: :Nano letters 2009
Martti Kaempgen Candace K Chan J Ma Yi Cui George Gruner

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...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده مهندسی مواد 1385

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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