Dynamic Viscosity of Tetracyanoborate- and Tricyanomethanide-Based Ionic Liquids by Dynamic Light Scattering

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autor(en): Bi S, Koller TM, Rausch MH, Wasserscheid P, Fröba AP
Zeitschrift: Industrial & Engineering Chemistry Research
Verlag: ACS American Chemical Society
Jahr der Veröffentlichung: 2015
Band: 54
Seitenbereich: 3071-3081
ISSN: 0888-5885
Sprache: Englisch


Abstract


Low-viscosity ionic liquids (ILs) based on the anions [B(CN)(4)](-) (tetracyanoborate) and [C(CN)(3)](-) (tricyanomethanide) are currently discussed as alternative working fluids for various applications. The dynamic viscosity of such ILs carrying [1-alky1-MIM](+) (1-alkyl-3-methylimidazolium) cations was investigated via determination of the translational particle diffusion coefficient by dynamic light scattering (DLS). The long-term stability of suspensions of different particles in the ILs, their particle diameters, and the influence of laser power on the measured particle diffusion coefficient for Semi-transparent ILs were studied. For temperatures from 283 to 353 K at atmospheric pressure, the dynamic viscosity of the four pure ILs forming stable suspensions was obtained with an uncertainty of less than 5% (k = 2) and agrees with literature. Absorption of CO2 at pressures up to 0.87 MPa induced a distinct decrease in the dynamic viscosity. Differences between the viscosities of the different systems can be explained by varying strength of molecular interactions.



FAU-Autoren / FAU-Herausgeber

Fröba, Andreas Paul Prof. Dr.-Ing.
Professur für Advanced Optical Technologies - Thermophysical Properties
Koller, Thomas Manfred Dr.-Ing.
Professur für Advanced Optical Technologies - Thermophysical Properties
Rausch, Michael Heinrich Dr.-Ing.
Lehrstuhl für Technische Thermodynamik
Wasserscheid, Peter Prof. Dr.
Lehrstuhl für Chemische Reaktionstechnik


Autor(en) der externen Einrichtung(en)
Xi'an Jiaotong University (XJTU) / 西安交通大学


Zitierweisen

APA:
Bi, S., Koller, T.M., Rausch, M.H., Wasserscheid, P., & Fröba, A.P. (2015). Dynamic Viscosity of Tetracyanoborate- and Tricyanomethanide-Based Ionic Liquids by Dynamic Light Scattering. Industrial & Engineering Chemistry Research, 54, 3071-3081. https://dx.doi.org/10.1021/acs.iecr.5b00086

MLA:
Bi, Shengshan, et al. "Dynamic Viscosity of Tetracyanoborate- and Tricyanomethanide-Based Ionic Liquids by Dynamic Light Scattering." Industrial & Engineering Chemistry Research 54 (2015): 3071-3081.

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Zuletzt aktualisiert 2018-11-08 um 02:59