cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.5286/isis.e/isis.e.rb2410268
title: Comparing Na- and Li-ion diffusion in isostructural disordered rocksalt battery materials - muon

description: Na-ion and Li-ion batteries are central to the Net Zero agenda, enabling vehicle electrification. However, new battery cathode materials are required which can store charge more densely and enable faster ion diffusion to increase driving range and reduce charging times. We are investigating a new class of cathode materials known as disordered rocksalts, which deliver some of the highest reported energy densities and fast-charging capability despite their intrinsically disordered structure. While theoretical mechanisms to explain the fast ion diffusion in disordered rocksalts have been proposed, this important property has never been investigated experimentally in these new cathode materials. Here, we propose to employ muon spectroscopy to directly measure Na+ and Li+ ion diffusion in two archetypal, isotstructural disordered rocksalts, Li2MnO2F and Na2MnO2F. In combination with polarised neutron QENS, for which we have applied to LET in parallel with this proposal, we will investigate ion diffusion over a range of lengthscales and temperatures and compare how fast Li and Na ions can diffuse through the rocksalt structure. This will reveal new experimental insight into how these materials are able to exhibit fast charging capability and high energy densities as cathode materials for rechargeable batteries.
DOI: 10.5286/isis.e/isis.e.rb2410268-1
title: Comparing Na- and Li-ion diffusion in isostructural disordered rocksalt battery materials - muon

description: Na-ion and Li-ion batteries are central to the Net Zero agenda, enabling vehicle electrification. However, new battery cathode materials are required which can store charge more densely and enable faster ion diffusion to increase driving range and reduce charging times. We are investigating a new class of cathode materials known as disordered rocksalts, which deliver some of the highest reported energy densities and fast-charging capability despite their intrinsically disordered structure. While theoretical mechanisms to explain the fast ion diffusion in disordered rocksalts have been proposed, this important property has never been investigated experimentally in these new cathode materials. Here, we propose to employ muon spectroscopy to directly measure Na+ and Li+ ion diffusion in two archetypal, isotstructural disordered rocksalts, Li2MnO2F and Na2MnO2F. In combination with polarised neutron QENS, for which we have applied to LET in parallel with this proposal, we will investigate ion diffusion over a range of lengthscales and temperatures and compare how fast Li and Na ions can diffuse through the rocksalt structure. This will reveal new experimental insight into how these materials are able to exhibit fast charging capability and high energy densities as cathode materials for rechargeable batteries.
DOI: 10.3535/9tf-rxg-9mp
title: Lythrum portula (L.) D. A. Webb

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/a2w-lnd-n85
title: Koeleria spicata (L.) Barberá, Quintanar, Soreng & P.M.Peterson

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e/isis.e.rb2420098
title: Effect of mixing protocol on micellar assembly

description: We routinely prepare useful samples by mixing solutions of different functionalised dipeptides. We have recent data suggesting that the properties of the solutions can be different if we directly prepare a mixed system, or we prepare individual solutions and mix. As one example, the viscosity can be orders of magnitude higher if a solution is directly prepared. This strongly implies that the self-assembled aggregates are different. We now seek to use SANS to understand this.
DOI: 10.5286/isis.e/isis.e.rb2420098-1
title: Effect of mixing protocol on micellar assembly

description: We routinely prepare useful samples by mixing solutions of different functionalised dipeptides. We have recent data suggesting that the properties of the solutions can be different if we directly prepare a mixed system, or we prepare individual solutions and mix. As one example, the viscosity can be orders of magnitude higher if a solution is directly prepared. This strongly implies that the self-assembled aggregates are different. We now seek to use SANS to understand this.
DOI: 10.5286/isis.e/isis.e.rb2420153-1
title: Small-angle neutron scattering study on the molecular packing and hydration in magnesium perfluorooctanoate micelles

description: Counter-ions have a large effect on the assembly and dispersion of fluorocarbon amphiphiles including the per-and polyfluoroalkyl substances (PFAS) that are widespread pollutants in the environment. Micelles play a crucial role in dispersion of these fluorocarbon materials in the environment. Understanding their physiochemical properties is also valuable in the development of the novel chemical processing that are being developed for their remediation. The calcium salt will be the subject of future studies as X-ray studies reveal that the overall phase behaviour is apparently more complex . The study focusses on magnesium perfluorooctanoate which has a low critical micelle concentration and is typical of divalent ions in the environment. It will investigate the molecular packing in micelles and the extent of their hydration using small-angle neutron scattering with contrast variation. Small-angle X-ray scattering shows that the magnesium perfluorooctanoate forms elongated micelles, contrasting with the short cylinders of sodium perfluorooctanoate. Temperature is seen to influence the shape and interactions. Combined analysis of the different contrasts is essential to develop and validate detailed models.
DOI: 10.5286/isis.e/isis.e.rb2490151-1
title: Li5.3PS4.3Br1.7
DOI: 10.34816/ifao.archives.232804
title: SAQQARA_nb_1994_03274

description: Référence : nb_1994_03274<br />Site : Saqqara<br />Secteur : Mastaba de Ti<br />Type : photographie<br />
DOI: 10.3535/8ts-771-aad
title: Poa alpina L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e/isis.e.rb2310308-2
title: Split-Ear Pommel Swords – Bimetallic and Bronze Weapons from Northwestern Iran

description: In consequence of a recent trafficking operation stopped by the Border Force in the UK, many metal objects from early Iron Age northwestern Iran became available for study. As part of PhD research conducted at Cranfield University and jointly funded by ISIS, we propose a Neutron Diffraction study of split-ear pommel swords to investigate their manufacturing technology.
DOI: 10.5286/isis.e/isis.e.rb2320353-2
title: Hydrogen in Steel Visualized by Energy-resolved Neutron Imaging

description: Visualizing hydrogen distributions via neutron imaging allows for quantification and a better interpretation of the processes involved in hydrogen embrittlement (HE)-assisted fatigue crack growth in austenitic and martensitic steels. Hydrogen is identified from the transmission intensities in both charged and uncharged samples. A gradient of hydrogen within the samples depending on outward diffusion of hydrogen with time is going to be considered. Once the detection limits on IMAT have been established, local hydrogen detection ahead of crack tips will be examined and correlated to fatigue crack growth rates (FCGRs). Samples strained and unstrained are considered for this purpose to understand the effect of straining, thus facilitating an understanding of the relationship between H concentration and FCGRs in steel. A major aspect of this methodical study is to utilize energy-resolved neutron imaging for detection of hydrogen in steel. Correlation of Bragg edge transmission at shorter neutron wavelengths with imaging beyond the Bragg edge cutoff of steel will allow optimizing hydrogen contrast. The outcome of this experiment will advance our mechanistic understanding of hydrogen transport, storage and embrittlement in structural materials
DOI: 10.5286/isis.e/isis.e.rb2420153
title: Small-angle neutron scattering study on the molecular packing and hydration in magnesium perfluorooctanoate micelles

description: Counter-ions have a large effect on the assembly and dispersion of fluorocarbon amphiphiles including the per-and polyfluoroalkyl substances (PFAS) that are widespread pollutants in the environment. Micelles play a crucial role in dispersion of these fluorocarbon materials in the environment. Understanding their physiochemical properties is also valuable in the development of the novel chemical processing that are being developed for their remediation. The calcium salt will be the subject of future studies as X-ray studies reveal that the overall phase behaviour is apparently more complex . The study focusses on magnesium perfluorooctanoate which has a low critical micelle concentration and is typical of divalent ions in the environment. It will investigate the molecular packing in micelles and the extent of their hydration using small-angle neutron scattering with contrast variation. Small-angle X-ray scattering shows that the magnesium perfluorooctanoate forms elongated micelles, contrasting with the short cylinders of sodium perfluorooctanoate. Temperature is seen to influence the shape and interactions. Combined analysis of the different contrasts is essential to develop and validate detailed models.
DOI: 10.34816/ifao.archives.232805
title: SAQQARA_nb_1994_03275

description: Référence : nb_1994_03275<br />Site : Saqqara<br />Secteur : Mastaba de Ti<br />Type : photographie<br />
DOI: 10.3535/28p-p4w-m0q
title: Poa alpina L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/ec9-gq7-fsl
title: Koeleria spicata (L.) Barberá, Quintanar, Soreng & P.M.Peterson

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e/isis.e.rb2220485-3
title: Hydrogen Bonding Between Carbon Nanotubes and Dimethylformamide

description: We will study the interactions between anionic single-walled carbon nanotubes and dimethylformamide to prove the presence of hydrogen-bonds which are involved in their surprising spontaneous solvation. The interactions between nanocarbon surface and solvent are expected to hold significant importance in understanding and developing carbon-based supercapacitors.
DOI: 10.5286/isis.e/isis.e.rb2490152-1
title: Li5.6PS4.5O0.1Br1.4
DOI: 10.5286/isis.e/isis.e.rb2490153-1
title: Duplicate Of: Li5.6PS4.5O0.1Br1.4
DOI: 10.3535/6xe-01v-9vv
title: Prunella vulgaris L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/efn-pld-4y8
title: Sedum annuum L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e/isis.e.rb2220485
title: Hydrogen Bonding Between Carbon Nanotubes and Dimethylformamide

description: We will study the interactions between anionic single-walled carbon nanotubes and dimethylformamide to prove the presence of hydrogen-bonds which are involved in their surprising spontaneous solvation. The interactions between nanocarbon surface and solvent are expected to hold significant importance in understanding and developing carbon-based supercapacitors.
DOI: 10.5286/isis.e/isis.e.rb2410046
title: DRUG-LIPID INTERPLAY PROBED BY NEUTRON SPECTROSCOPY - AIMING AT LIPOSOME-ENCAPSULATION FOR A CONTROLLED DRUG DELIVERY

description: Inelastic neutron scattering spectroscopy will be applied to probe the interactions between newly synthesised Pt- and Pd-anticancer agents and membrane-constituent lipids, through INS spectroscopy (which will complement results from Raman, FTIR and QENS) – with the final goal of designing liposome-based formulations for a controlled drug-delivery of metallodrugs.
The data thus gathered will guide the design of liposome-encapsulated cisplatin-like agents, and will allow us to understand the specific interplay between the drug and the membrane, upon encapsulation. This type of knowledge is crucial to tailor drug transport and controlled release, aiming at an improved chemotherapeutic efficacy coupled to lower deleterious side-effects and acquired resistance.
DOI: 10.5286/isis.e/isis.e.rb2410046-1
title: DRUG-LIPID INTERPLAY PROBED BY NEUTRON SPECTROSCOPY - AIMING AT LIPOSOME-ENCAPSULATION FOR A CONTROLLED DRUG DELIVERY

description: Inelastic neutron scattering spectroscopy will be applied to probe the interactions between newly synthesised Pt- and Pd-anticancer agents and membrane-constituent lipids, through INS spectroscopy (which will complement results from Raman, FTIR and QENS) – with the final goal of designing liposome-based formulations for a controlled drug-delivery of metallodrugs.
The data thus gathered will guide the design of liposome-encapsulated cisplatin-like agents, and will allow us to understand the specific interplay between the drug and the membrane, upon encapsulation. This type of knowledge is crucial to tailor drug transport and controlled release, aiming at an improved chemotherapeutic efficacy coupled to lower deleterious side-effects and acquired resistance.
DOI: 10.34816/ifao.archives.232806
title: SAQQARA_nb_1994_03276

description: Référence : nb_1994_03276<br />Site : Saqqara<br />Secteur : Mastaba de Ti<br />Type : photographie<br />
DOI: 10.3535/hpg-tat-9tg
title: Catabrosa aquatica (L.) P.Beauv.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/lge-qca-pp5
title: Puccinellia nutkaensis (J.Presl) Fernald & Weath.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e/isis.e.rb2220008-3
title: Structure and properties of phenol-ammonia compounds

description: In previous work carried out on HRPD (RB1920009) I made a preliminary characterisation of four new compounds in the binary system phenol-ammonia, including one that exists in two distinct modifications. The structure of one of these, phenol mono-ammoniate, was determined from the powder data. The remaining phases were indexed and space-groups assigned, but the structures could not be determined. With improved knowledge of the phases that exist in this system, and with a new CCR centre stick that allows us to reduce the effects of preferred orientation, my aim is to collect new data from the phenol ammoniates in order to complete the task of structure solution. DFT work on the solved mono-ammoniate structure already reveals a propensity for proton transfer at low pressures, and it is hoped that the more ammonia-rich compounds will exhibit this characteristic perhaps at ambient pressure.
DOI: 10.5286/isis.e/isis.e.rb2420127
title: Charge and spin orders through cascading charge disproportionation transitions in SmBaFe2O6

description: The recently synthesised A-cation layered double perovskite SmBaFe2O6 containing mixed and unusually high valent Fe3.5+ has been found to show a cascade of charge disproportionation transitions that can be described as 2Fe3.5+ → Fe3+ + Fe4+ → 1.5Fe3+ + 0.5Fe5+ on cooling. While the first charge transition is accompanied by structural and magnetic transitions, the second transition occurs gradually with successive magnetic anomalies and significant temperature and magnetic field hysteresis. To reveal the charge orders and magnetic structures, we propose temperature-dependent neutron diffraction experiments at the WISH diffractometer. The expected results will provide new insights into unusual phase transition phenomena of transition-metal oxides with strong correlation of charge, spin, and lattice degrees of freedom.
DOI: 10.5286/isis.e/isis.e.rb2420127-1
title: Charge and spin orders through cascading charge disproportionation transitions in SmBaFe2O6

description: The recently synthesised A-cation layered double perovskite SmBaFe2O6 containing mixed and unusually high valent Fe3.5+ has been found to show a cascade of charge disproportionation transitions that can be described as 2Fe3.5+ → Fe3+ + Fe4+ → 1.5Fe3+ + 0.5Fe5+ on cooling. While the first charge transition is accompanied by structural and magnetic transitions, the second transition occurs gradually with successive magnetic anomalies and significant temperature and magnetic field hysteresis. To reveal the charge orders and magnetic structures, we propose temperature-dependent neutron diffraction experiments at the WISH diffractometer. The expected results will provide new insights into unusual phase transition phenomena of transition-metal oxides with strong correlation of charge, spin, and lattice degrees of freedom.
DOI: 10.3535/kyj-zhg-lf2
title: Leymus mollis (Trin.) Pilg.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e/isis.e.rb2368026-2
title: Magnetic ground state of Spin-orbit Coupled Mott Insulator Ca2Ru(1-x)SnxO4

description: Mott insulating ruthenates with electronic configuration d4 have attracted attention of researchers due to novel electronics states such. In the limit of strong spin-orbit coupling, in cubic limit, the ground state is non-magnetic J = 0 and separated by the J =1 state, with spin-orbit coupling (λ). A quantum critical point separating the non-magnetic ground state with the ordered state is therefore expected in this system. These exotic state near the quantum critical point can be accessed through pressure, applied current, and chemical doping . Here, we have taken a route of chemical doping to access the states near the quantum critical point via Sn doping at the Ru site (5 and 10% doping). The present proposal aims to determine the magnetic ground state of Ca2Ru(1-x)SnxO4 (x = 0.05 amd 0.1), by carrying out time of fligt neutron diffraction experiemnts using the GEM instrument.
DOI: 10.5286/isis.e/isis.e.rb2410408-1
title: Magnetic Structure Determination of Fe3GaTe2

description: Fe3GaTe2 is 2D van der Waal ferromagnetic compound that has a Curie temperature above room temperature. Curiously, no detailed analysis on the magnetic or nuclear structure has been reported for this compound. This proposal plans to use GEM to perform powder neutron diffraction on Fe3GaTe2 and fill this gap in knowledge. To accomplish this goal, we request 36 hours of instrument time to perform three high quality neutron diffraction patterns at 400 K, base temperature and an intermediate temperature. The rest of the time will be used to measure a magnetic order parameter experiment on Fe3GaTe2
DOI: 10.5286/isis.e/isis.e.rb2455014-2
title: Validation of Compact Source Capabilities for Advanced Laser Surface Treatment
DOI: 10.34816/ifao.archives.232807
title: SAQQARA_nb_1994_03277

description: Référence : nb_1994_03277<br />Site : Saqqara<br />Secteur : Mastaba de Ti<br />Type : photographie<br />
DOI: 10.3535/14f-839-s34
title: Plantae

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/8hv-zlg-0c2
title: Alopecurus geniculatus L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e/isis.e.rb2410408
title: Magnetic Structure Determination of Fe3GaTe2

description: Fe3GaTe2 is 2D van der Waal ferromagnetic compound that has a Curie temperature above room temperature. Curiously, no detailed analysis on the magnetic or nuclear structure has been reported for this compound. This proposal plans to use GEM to perform powder neutron diffraction on Fe3GaTe2 and fill this gap in knowledge. To accomplish this goal, we request 36 hours of instrument time to perform three high quality neutron diffraction patterns at 400 K, base temperature and an intermediate temperature. The rest of the time will be used to measure a magnetic order parameter experiment on Fe3GaTe2
DOI: 10.5286/isis.e/isis.e.rb2420280-1
title: Low-E Dynamics in Real Electrolytes, Demonstrated in High-Efficacy Room Temperature Li-Batteries

description: A series of differing ionic liquids have been synthetically achieved, with pronounced modulation of Li-ion movement, independent of the anion present in the system. These have been employed as high-efficiency electrolytes in power-storage systems demonstrated in functional devices at room temperature. The nature of the high-efficacy of Li-ion movement is unknown and we look to resolve the structural and dynamical phenomenon (diffusion/translations, rotations as a function of concentration/viscosity) controlling the functional efficacy of these systems. The non-destructive, high-resolution nature of neutron scattering provides the ideal for these determinations, with which we will build-up to in-situ measurements on functional devices operating in real-time.
DOI: 10.3535/a1k-fvq-6m3
title: Agrostis L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/f2e-1tl-4gf
title: Elymus repens (L.) Gould

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e/isis.e.rb2410677
title: Capturing the steep-gradient residual strain profile of a nickel IN617 electron beam welded sample for very high temperature VHTGR

description: This research delivers into the nuclear manufacturing of Very-High-Temperature Gas Reactors (VHTGRs) using Nickel-based superalloy 617 (IN617) for heat exchangers. Specifically, it explores the application of electron beam welding for IN617, a material known for its resistance to corrosion, oxidation, and high creep properties. The study aims to measure residual stress levels, validate weld models, and correlate them with creep properties. The project has practical implications for welding choices in VHTGR components, i.e. Intermediate Heat Exchangers IHX.
DOI: 10.5286/isis.e/isis.e.rb2410677-1
title: Capturing the steep-gradient residual strain profile of a nickel IN617 electron beam welded sample for very high temperature VHTGR

description: This research delivers into the nuclear manufacturing of Very-High-Temperature Gas Reactors (VHTGRs) using Nickel-based superalloy 617 (IN617) for heat exchangers. Specifically, it explores the application of electron beam welding for IN617, a material known for its resistance to corrosion, oxidation, and high creep properties. The study aims to measure residual stress levels, validate weld models, and correlate them with creep properties. The project has practical implications for welding choices in VHTGR components, i.e. Intermediate Heat Exchangers IHX.
DOI: 10.5286/isis.e/isis.e.rb2420280
title: Low-E Dynamics in Real Electrolytes, Demonstrated in High-Efficacy Room Temperature Li-Batteries

description: A series of differing ionic liquids have been synthetically achieved, with pronounced modulation of Li-ion movement, independent of the anion present in the system. These have been employed as high-efficiency electrolytes in power-storage systems demonstrated in functional devices at room temperature. The nature of the high-efficacy of Li-ion movement is unknown and we look to resolve the structural and dynamical phenomenon (diffusion/translations, rotations as a function of concentration/viscosity) controlling the functional efficacy of these systems. The non-destructive, high-resolution nature of neutron scattering provides the ideal for these determinations, with which we will build-up to in-situ measurements on functional devices operating in real-time.
DOI: 10.34816/ifao.archives.232808
title: SAQQARA_nb_1994_03278

description: Référence : nb_1994_03278<br />Site : Saqqara<br />Secteur : Mastaba de Ti<br />Type : photographie<br />
DOI: 10.3535/ar7-v7k-mzz
title: Plantae

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/j2s-mkt-kb2
title: Alopecurus pratensis L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.