JDN 2025

Session

Posters

2 Jun 2025, 18:15

12. Design of an Inelastic Neutron Spectrometer for the French ICONE project

Kyriakos KARYOS (CEA/LLB)

02/06/2025, 18:15

Poster

ICONE (Innovative COmpact NEutrons facility) is a project of a French High-Intensity Compact Accelerator-driven Neutron Source (HiCANS) aimed at delivering an instrument suite for the French scientific community at the 2035 horizon. ICONE will produce neutrons by accelerating protons to an energy 25 MeV and impacting them on a Beryllium target. The resulting neutrons will then be moderated to...

32. Dynamics of the critical phonon modes in quantum paraelectric SrTiO3

Shiyu Deng (Institut Laue-Langevin)

02/06/2025, 18:30

Poster

The proximity of SrTiO$_3$ to a ferroelectric quantum critical point (FE QCP) has become a promising new branch of the study of quantum critical phenomena. New forms of quantum order have been reported in SrTiO$_3$, different from the quantum paraelectric state via dielectric measurements. The critical point here is associated with a soft optical phonon mode responsible for the ferroelectric...

8. Aqueous solubilization of hydrophobic compounds by inorganic nano-ions: An unconventional mechanism

Dr Ioanna Chazapi (Laboratoire Léon Brillouin, Université Paris-Saclay, CEA-CNRS UMR 12 CEA Saclay, 91191 Gif sur Yvette, France)

02/06/2025, 18:45

Poster

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Solubilization of hydrophobic compounds in water is commonly performed by the addition of organic solubilizers through (i) micellar or hydrotropic solubilization using amphiphilic molecules[1], (ii) co-solvency using water-soluble solvents, and (iii) host–guest complexation using macrocycles[2]. In this study, we show that the...

5. Water Intrusion in Nanoporous Materials: Implications for Energy Storage

Thomas MARESCOT (LLB)

02/06/2025, 19:00

Poster

Nanoporous materials, such as mesoporous silicas (e.g., MCM-41 and SBA-15) and metal-organic frameworks (MOFs), exhibit unique properties that make them essential for various applications, including catalysis, separation, and energy storage. A key aspect of energy storage in these materials is the intrusion of water into their pores, a process that converts mechanical energy into interfacial...

19. Probing Hydrogen Diffusion in Coal for Geological Storage via Quasielastic Neutron Scattering

Xinxin HE (Pennsylvania State University)

02/06/2025, 19:15

Poster

Underground hydrogen storage (UHS) in coal seams presents a compelling opportunity for scalable, low-carbon energy storage, yet the fundamental understanding of hydrogen transport in such complex porous media remains limited. In this study, we explore hydrogen diffusion in coal using quasielastic neutron scattering (QENS), a technique uniquely suited to capturing molecular-scale dynamics of...

61. The ICONE project: towards a new neutron source in France for materials science and industry

Frederic Ott (IRAMIS / Laboratoire Léon Brillouin CEA-CNRS)

02/06/2025, 19:30

Poster

HiCANS, High Current Accelerator-based Neutron Sources, is a concept proposed several years ago which aims at revisiting how neutron sources suitable for neutron scattering could be built [1]. The concept of HiCANS relies on technical progress in accelerator technology, neutron moderator design and neutron instrumentation developments to be able to propose a source using a low energy...