Search

Your search keyword '"Rutland, Mark W."' showing total 395 results
Start Over Author "Rutland, Mark W."
395 results on '"Rutland, Mark W."'

3. Grazing incidence neutron scattering for the study of solid–liquid interfaces

Author

Wolff, Max, primary, Frielinghaus, Henrich, additional, Cárdenas, Marité, additional, Gonzalez, Juan Fransisco, additional, Theis-Bröhl, Katharina, additional, Softwedel, Olaf, additional, von Klitzing, Regine, additional, Pilkington, Georgia A., additional, Rutland, Mark W., additional, Dahint, Reiner, additional, and Gutfreund, Philipp, additional

Published
2023
Full Text
View/download PDF

7. Acceleration of diffusion in ethylammonium nitrate ionic liquid confined between parallel glass plates

Author

Filippov, Andrei, Gnezdilov, Oleg I., Hjalmarsson, Nicklas, Antzutkin, Oleg N., Glavatskih, Sergei, Furó, Istvan, and Rutland, Mark W.

Subjects
Physics - Chemical Physics, Condensed Matter - Soft Condensed Matter
Abstract

The bulk self diffusion of the ethylammonium cation and the nitrate anion can both be described by respective single diffusion coefficients. Diffusion of the anion is 1.7 times higher than that of the cation. This indicates no tight association of the ions in the ionic liquid. For the ethylammonium cation confined between glass plates the effective diffusion coefficient along, as well as normal to the confining glass plates is higher by a factor of 1.86 as compared to that in the bulk. The same time, NMR T2 relaxation of protons of NH3 group of the EA cation is faster by a factor of 22 than that in bulk. 2H NMR spectra of selectively labeled CH2 and CH3 groups of EA do not demonstrate any ordering of the EA between the glass plates. We suggested that these data favor a model where a bulk isotropic sponge like structure of EAN is saved in the confinement, but sizes of connecting channels increases. Those leads to faster translational diffusion and faster exchange processes of protons of NH3 group, in comparison with the bulk., Comment: 11 pages, 5 figures, 1 table

Published
2017
Full Text
View/download PDF

8. Long-Range Interactions in Salt-in-Ionic Liquids

Author

Zhang, Xuhui, primary, Zachary A. H., Goodwin, additional, Hoane, Alexis G., additional, Deptula, Alex, additional, Markiewitz, Daniel M., additional, Molinari, Nicola, additional, Zheng, Qianlu, additional, Li, Hua, additional, McEldrew, Michael, additional, Kozinsky, Boris, additional, Bazant, Martin Z., additional, Leal, Cecilia, additional, Atkin, Rob, additional, Gewirth, Andrew, additional, Rutland, Mark W., additional, and Espinosa-Marzal, Rosa M., additional

Published
2024
Full Text
View/download PDF

24. Grazing incidence neutron scattering for the study of solid–liquid interfaces

Author

Wolff, Max, Frielinghaus, Henrich, Gutfreund, Philipp, Cárdenas, Marité, Gonzalez, Juan Fransisco, Theis-Bröhl, Katharina, Softwedel, Olaf, von Klitzing, Regine, Pilkington, Georgia A., Rutland, Mark W., and Dahint, Reiner

Abstract

Neutrons are characterized by a low absorption in many engineering materials. At the same time the scattering cross section of light elements, such as hydrogen and deuterium, may be large. These properties make neutron scattering experiments performed under grazing incidence geometry an excellent tool for the study of solid–liquid interfaces. In this review we describe the basic concepts of neutron reflection and grazing incidence scattering experiments as well as experimental procedures and sample cells. The full power of the method is exemplified on a range of science areas, including polymers, bio- and ionic liquid lubricants, electrolytes as well as bio-membranes or magnetic liquids.

Published
2023

36. Electro-responsivity of ionic liquid boundary layers in a polar solvent revealed by neutron reflectance.

Author

Pilkington, Georgia A., Harris, Kathryn, Bergendal, Erik, Reddy, Akepati Bhaskar, Palsson, Gunnar K., Vorobiev, Alexei, Antzutkin, Oleg. N., Glavatskih, Sergei, and Rutland, Mark W.

Subjects
IONIC liquids, BOUNDARY layer (Aerodynamics), NEUTRON reflectivity, POLAR solvent analysis, MEASUREMENT of viscosity, ION scattering
Abstract

Using neutron reflectivity, the electro-responsive structuring of the non-halogenated ionic liquid (IL) trihexyl(tetradecyl)phosphonium-bis(mandelato)borate, [P6,6,6,14][BMB], has been studied at a gold electrode surface in a polar solvent. For a 20% w/w IL mixture, contrast matched to the gold surface, distinct Kiessig fringes were observed for all potentials studied, indicative of a boundary layer of different composition to that of the bulk IL-solvent mixture. With applied potential, the amplitudes of the fringes from the gold-boundary layer interface varied systematically. These changes are attributable to the differing ratios of cations and anions in the boundary layer, leading to a greater or diminished contrast with the gold electrode, depending on the individual ion scattering length densities. Such electro-responsive changes were also evident in the reflectivities measured for the pure IL and a less concentrated (5% w/w) IL-solvent mixture at the same applied potentials, but gave rise to less pronounced changes. These measurements, therefore, demonstrate the enhanced sensitivity achieved by contrast matching the bulk solution and that the structure of the IL boundary layers formed in mixtures is strongly influenced by the bulk concentration. Together these results represent an important step in characterising IL boundary layers in IL-solvent mixtures and provide clear evidence of electro-responsive structuring of IL ions in their solutions with applied potential. [ABSTRACT FROM AUTHOR]

Published
2018
Full Text
View/download PDF

39. A Curly Q: Is Frizz a Matter of Friction?

Author

Skedung, Lisa, primary, Collier, Elizabeth S., additional, Harris, Kathryn L., additional, Rutland, Mark W., additional, Applebaum, Mara, additional, Greaves, Andrew J., additional, and Luengo, Gustavo S., additional

Published
2021
Full Text
View/download PDF

45. A vibrational sum frequency spectroscopy study of the liquid-gas interface of acetic acid-water mixtures: 2. Orientation analysis

Author

Tyrode, Eric, Johnson, C. Magnus, Baldelli, Steve, Leygraf, Christofer, and Rutland, Mark W.

Subjects
Acetic acid -- Chemical properties, Acetic acid -- Spectra, Aqueous solution reactions -- Analysis, Vibrational spectra -- Research, Chemicals, plastics and rubber industries
Abstract

The study investigates the surface of aqueous acetic acid solution using the vibrational sum frequency spectroscopy. It concluded that the orientation of the interfacial acetic acid molecules was found to remain essentially constant in an upright position with the methyl group directed toward the gas phase in the whole concentration range.

Published
2005

46. A vibrational sum frequency spectroscopy study of the liquid-gas interface of acetic acid-water mixtures: 1. Surface speciation

Author

Johnson, C. Magnus, Tyrode, Eric, Baldelli, Steve, Rutland, Mark W., and Leygraf, Christofer

Subjects
Vibrational spectra -- Research, Acetic acid -- Chemical properties, Acetic acid -- Research, Chemicals, plastics and rubber industries
Abstract

The study of aqueous acetic acid solutions is presented by vibrational sum frequency spectroscopy (VSFS) in order to acquire molecular information about the liquid-gas interface. It concluded that even such a small amounts as 0.3% acetic acid disrupt the water surface significantly.

Published
2005

Catalog

Books, media, physical & digital resources
See catalog results