New Design of a Sample Cell for Neutron Reflectometry in Liquid–Liquid Systems and Its Application for Studying Structures at Air–Liquid and Liquid–Liquid Interfaces
Source abstract
Abstract
Knowledge of interfacial structures in liquid–liquid systems is imperative, especially for improving two-phase biological and chemical reactions. Therefore, we developed a new sample cell for neutron reflectometry (NR), which enables us to observe the layer structure around the interface, and investigated the adsorption behavior of a typical surfactant, sodium dodecyl sulfate (SDS), on the toluene-d8-D2O interface under the new experimental conditions. The new cell was characterized by placing the PTFE frame at the bottom to produce a smooth interface and downsized compared to the conventional cell. The obtained NR profiles were readily analyzable and we determined a slight difference in the SDS adsorption layer structure at the interface between the toluene-d8-D2O and air-D2O systems. This could be owing to the difference in the adsorption behavior of the SDS molecules depending on the interfacial conditions.
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Research context
OpenAlex topics: Spectroscopy and Quantum Chemical Studies · Surfactants and Colloidal Systems · Analytical Chemistry and Sensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Neutron Science and Technology Center, Comprehensive Research Organization for Science and Society (CROSS), Tokai, Naka 319-1106, Ibaraki, Japan
Neutron Science Laboratory, Center for Integrative Quantum Beam Science, High Energy Accelerator Research Organization, Tokai, Naka 319-1106, Ibaraki, Japan
Materials Sciences Research Center, Japan Atomic Energy Agency (JAEA), Tokai, Naka 391-1195, Ibaraki, Japan
Global Zero Emission Research Center, National Institute of Advanced Industrial Science and Technology, Umezono, Tsukuba 305-8569, Ibaraki, Japan
Funding
Japan Society for the Promotion of Science
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