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Aqueous asymmetric electrochemical capacitor, with their high power density and superior cycle stability in comparison to conventional batteries, are presently considered as the most promising contender for energy storage. However,…

Materials Science · Physics 2022-06-07 Subrata Ghosh , S. R. Polaki , Gopinath Sahoo , En-Mei Jin , M. Kamruddin , Jung Sang Cho , Sang Mun Jeong

Electric double layer supercapacitors are a fast-rising class of high-power energy storage devices based on porous electrodes immersed in a concentrated electrolyte or ionic liquid. As of yet there is no microscopic theory to describe their…

Materials Science · Physics 2015-03-17 Brian Skinner , Tianran Chen , M. S. Loth , B. I. Shklovskii

The transition to a green hydrogen economy demands robust, scalable, and sustainable anodes for alkaline water electrolysis operating at industrial current densities (>1 A/cm2). However, achieving high activity and long-term stability under…

The development of green and biodegradable electrical components is one of the main fronts of research to overcome the growing ecological problem related to the issue of electronic waste. At the same time, such devices are highly desirable…

Applied Physics · Physics 2018-06-15 Guilherme Colherinhas , Thaciana Fileti , Eudes Fileti

This article is present the effected oxide capacitor in CMOS structure of integrated circuit level 5 micrometer technology. It has designed and basic structure of MOS diode. It establish with aluminum metallization layer by sputtering…

Other Computer Science · Computer Science 2009-12-22 S. Rodthong , B. Burapattanasiri

We present the coupling of two frameworks -- the pseudo-open boundary simulation method known as constant potential Molecular Dynamics simulations (C$\mu$MD), combined with QMMD calculations -- to describe the properties of graphene…

Materials Science · Physics 2023-04-19 Nicodemo Di Pasquale , Aaron R. Finney , Joshua Elliott , Paola Carbone , Matteo Salvalaglio

The solid-state electrolyte is critical for achieving next-generation high energy density and high-safety batteries. Solid polymer electrolytes (SPEs) possess great potential for commercial application owing to their compatibility with the…

Materials Science · Physics 2023-07-04 Xiong Xiong Liu , Shengfa Feng , Pengcheng Yuan , Yaping Wang , Long Pan , ZhengMing Sun

Recent rapid progress in efficiencies for solar water splitting by photoelectrochemical devices has enhanced its prospects to enable storable renewable energy. Efficient solar fuel generators all use tandem photoelectrode structures, and…

Supercapacitors (S-C) are short-term energy storage elements that find many applications, e.g., electronic charging devices and suppressors of power fluctuations in grids that are interfaced with sustainable sources. The capacitance of an…

Chemical Physics · Physics 2022-09-23 H. Grebel , Shupei Yu , Yuanwei Zhang

In water electrolysis, bubbles form on the electrode and interact through processes such as collision and coalescence. However, the impact of bubble coalescence a fundamental process governing electrolytic bubble behaviour-on electrolysis…

Chemical Physics · Physics 2024-11-06 Tao Wu , Bo Liu , Haohao Hao , Fang Yuan , Yu Zhang , Huanshu Tan , Qiang Yang

Pseudocapacitors are energy-storage devices characterized by fast and reversible redox reactions that enable them to store large amounts of electrical energy at high rates. We simulate the response of pseudocapacitive electrodes under…

Materials Science · Physics 2017-05-19 Nathan Keilbart , Yasuaki Okada , Aion Feehan , Shinichi Higai , Ismaila Dabo

Hybrid electric vehicles and portable electronic systems use supercapacitors for energy storage owing to their fast charging discharging rates, long life cycle, and low maintenance. Specific capacitance is regarded as one of the most…

In the recent experiments [Chmiola et al, Science 313, 1760 (2006); Largeot et al, J. Am. Chem. Soc. 130, 2730 (2008)] an anomalous increase of the capacitance with a decrease of the pore size of a carbon-based porous electric double-layer…

Soft Condensed Matter · Physics 2015-03-17 S. Kondrat , A. Kornyshev

We describe the production and characterization of microelectromagnets made for trapping and manipulating atomic ensembles. The devices consist of 7 fabricated parallel copper conductors 3 micrometer thick, 25mm long, with widths ranging…

Soft Condensed Matter · Physics 2009-11-07 J. Fortagh , H. Ott , G. Schlotterbeck , C. Zimmermann , B. Herzog , D. Wharam

A Thermally Chargeable Capacitor containing a binary solution of 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)-imide (EMIMTFSI) in acetonitrile is electrically charged by applying a tempera- ture gradient to two ideally…

Soft Condensed Matter · Physics 2015-06-23 Marco Bonetti , Sawako Nakamae , Bo Tao Huang , Thomas J. Salez , Cecile Wiertel-Gasquet , Michel Roger

The rapid charging and/or discharging of electrochemical cells can lead to localized depletion of electrolyte concentration. This depletion can significantly impact the system's time dependent resistance. For systems with porous electrodes,…

Chemical Physics · Physics 2017-12-27 James W. Palko , Ali Hemmatifar , Juan G. Santiago

Carbon-carbon supercapacitors are high power electrochemical energy storage systems which store energy through reversible ion adsorption at the electrode-electrolyte interface. Due to the complex structure of the porous carbons used as…

Materials Science · Physics 2024-06-19 El Hassane Lahrar , Patrice Simon , Céline Merlet

We report the performance of a hydrogen-chlorine electrochemical cell with a chlorine electrode employing a low precious metal content alloy oxide electrocatalyst for the chlorine electrode: (Ru_0.09Co_0.91)_3O_4. The cell employs a…

Materials Science · Physics 2012-06-14 Brian Huskinson , Jason Rugolo , Sujit K. Mondal , Michael J. Aziz

Supercapacitors capable of providing high voltage, energy and power density but yet light, low volume occupying, flexible and mechanically robust are highly interesting and demanded for portable applications. Herein, freestanding flexible…

Silicon anodes offer high energy densities for next-generation lithium-ion batteries; however, their application is limited by severe volume expansion during cycling. Making silicon porous or nanostructured mitigates this expansion but…