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

Bi S, Koller TM, Rausch MH, Wasserscheid P, Fröba AP (2015)

Publication Language: English

Publication Status: Published

Publication Type: Journal article

Publication year: 2015

Journal

Industrial & Engineering Chemistry Research American Chemical Society (ACS)

Publisher: ACS American Chemical Society

Book Volume: 54

Pages Range: 3071-3081

DOI: 10.1021/acs.iecr.5b00086

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.

Authors with CRIS profile

Thomas Manfred Koller Michael Rausch Lehrstuhl für Technische Thermodynamik (LTT) Peter Wasserscheid Lehrstuhl für Chemische Reaktionstechnik (CRT) Andreas Paul Fröba Institute of Advanced Optical Technologies - Thermophysical Properties (AOT-TP)

Involved external institutions

Xi’an Jiaotong-Liverpool University (XJTLU) CN China (CN)

How to cite

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://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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