TITLE

Resolving Anomalies in Predicting Electrokinetic Energy Conversion Efficiencies of Nanofluidic Devices

AUTHOR(S)
Majumder, Sagardip; Dhar, Jayabrata; Chakraborty, Suman
PUB. DATE
October 2015
SOURCE
Scientific Reports;10/9/2015, p1
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We devise a new approach for capturing complex interfacial interactions over reduced length scales, towards predicting electrokinetic energy conversion efficiencies of nanofluidic devices. By embedding several aspects of intermolecular interactions in continuum based formalism, we show that our simple theory becomes capable of representing complex interconnections between electro-mechanics and hydrodynamics over reduced length scales. The predictions from our model are supported by reported experimental data, and are in excellent quantitative agreement with molecular dynamics simulations. The present model, thus, may be employed to rationalize the discrepancies between low energy conversion efficiencies of nanofluidic channels that have been realized from experiments, and the impractically high energy conversion efficiencies that have been routinely predicted by the existing theories.
ACCESSION #
110327883

 

Related Articles

  • Effect of presence of salt on the dynamics of water in uncharged nanochannels. Bakli, Chirodeep; Chakraborty, Suman // Journal of Chemical Physics;2/7/2013, Vol. 138 Issue 5, p054504 

    Energy conversion and generation mechanisms at nano-scales often include tapping power from pressure-driven flow of water containing dissolved salts in nanofluidic channels. The deviation of such flows from continuum behaviour can often be advantageously utilized to enhance the energy conversion...

  • On the excluded volume concept. Nezbeda, I. // Vestnik Sankt-Peterburgskogo universiteta, Seriia 7: Geologia, G;2013, Issue 1, p285 

    The paper shows that the excluded volume concept can be applied to the fluids with complex interactions, particularly associating ones, if the intermolecular interaction model is considered as a site--site model with embedded Coulombic sites. Thus, the excluded volume, as a matter of fact,...

  • Impact of the thermal motion of silicon atoms on the viscosity of nanoconfined aqueous NaCl solution. Li, Jiapeng; Wang, Haochen; Li, Yusheng // Modern Physics Letters B;Jun2018, Vol. 32 Issue 18, pN.PAG 

    The properties of nanoconfined fluid are critical for the design and precise control of nanofluidic devices. To understand the fundamental details of the viscosity of nanoconfined aqueous NaCl solution, we investigated the impact of the thermal motion of silicon atoms on the viscosity of...

  • Physical origins of apparently enhanced viscosity of interfacial fluids in electrokinetic transport. Wu, Peng; Qiao, Rui // Physics of Fluids;Jul2011, Vol. 23 Issue 7, p072005 

    A key concept in classical electrokinetic theories is that the viscosity of interfacial fluids is much higher than that of bulk fluids, and this concept is indirectly supported by experimental evidence and molecular dynamics simulations. However, a universal mechanism that encompasses the...

  • Computer-aided simulation of the influence of collective effects on polymer-melt dynamics in a straight cylindrical tube: Observation of the onset stage of the corset effect. Shakirov, T.; Fatkullin, N.; Khalatur, P.; Stapf, S.; Kimmich, R. // Polymer Science -- Series A;Jun2012, Vol. 54 Issue 6, p505 

    The results of the computer-aided simulation of the dynamics of a polymer melt consisting of Fraenkel chains in straight cylindrical tubes and in bulk are discussed. Two different models are studied. In the first model, the dynamics of the polymer melt is simulated via the molecular dynamics...

  • Computational insights of water droplet transport on graphene sheet with chemical density. Liuyang Zhang; Xianqiao Wang // Journal of Applied Physics;2014, Vol. 115 Issue 19, p194306-1 

    Surface gradient has been emerging as an intriguing technique for nanoscale particle manipulation and transportation. Owing to its outstanding and stable chemical properties, graphene with covalently bonded chemical groups represents extraordinary potential for the investigation of nanoscale...

  • LIED technique images ultrafast molecular dynamics. Overton, Gail // Laser Focus World;Sep2013, Vol. 49 Issue 9, p15 

    The article focuses on a study conducted by researchers at the Ohio State University and Kansas State University to demonstrate gas-phase molecular imaging on the femtosecond time scale with unprecedented spatiotemporal resolution using the laser-induced electron diffraction (LIED) methodology....

  • Study of the terminal interactions between Molecules of (4- n-butoxyphenyl)- N-( p-tolyl)methanimine. Volkova, T.; Sterlikova, I.; Magdalinova, N.; Klyuev, M. // Russian Journal of General Chemistry;Jun2013, Vol. 83 Issue 6, p1064 

    The energy of interaction between (4- n-butoxyphenyl)- N-( p-tolyl)methanimine molecules has been estimated and decomposed by Morokuma method. It has been shown that the intermolecular interaction energy is a function of both intermolecular distance and relative orientation. Terminal...

  • A tutorial for molecular dynamics simulations using Amber package. Garcia, Marcos Vinícius R.; Marciela, Wivirkins N.; Da Silva Gomes, Roberto; do Amaral, Marcos Serrou // Orbital: The Electronic Journal of Chemistry;Jul-Sep2012, Vol. 4 Issue 3, p222 

    In this paper we present a tutorial for performing molecular dynamics calculations utilizing Amber package. Through it we explain the function of each step in a theoretical work of MD, thus enabling the application of acquired knowledge to other systems without many difficulties. For this...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics