cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.5286/isis.e.rb2510661-1
title: Operando SANS investigation of the sodium-ion pore-filling mechanism of in hard carbon anode in sodium-ion batteries

description: In this proposed work, we aim to study the pore-filling behaviour in high-performance hard carbon via operando SANS using modified single-layer pouch cells, aiming to provide representative evidence of the hard carbon in real-world applications throughout the plateau region, as well as the storage mechanism in the sloping regions. We will investigate the discharging/sodiation process and the under-reported charging/desodiation process (i.e., removal of the Na cluster from pores) during charging. More specifically, the SANS data will be analysed to get some information about the pore size, geometry, pore size distribution, SLD to attempt to quantify levels of sodiation. These significant insights will provide direct evidence for (or against) the pore-filling mechanisms. We expect to be able to provide clear instructions on the porosity design for hard carbon as an anode for Na-ion storage and be able to compare these results meaningfully with those of other hard carbon. Hard carbon design is quite varied and challenging to get right to justify this argument.
DOI: 10.3535/0ty-5zm-z3k
title: Phleum hirsutum Honck.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/cj3-y6c-ab4
title: Rhynchospora alba (L.) Vahl

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2510083
title: Origin of low thermal conductivity in quasi-2D TlCu3Se2 with superior thermoelectric performance: An inelastic neutron scattering study

description: Semiconductors that simultaneously show ultralow lattice thermal conductivities (klat) and high thermoelectric figure-of-merit (zT) are rare, yet they are fundamentally intriguing and critically important for energy conversion. Recently, we have worked with TlCu3Se2, a new material being explored in thermoelectrics, and identified some of its interesting features. The material has a layered crystal structure comprised of infinite [Cu3Se2]- sheets extending along the crystallographic ab plane, and weakly-bonded Tl+ ions between two of such layers. TlCu3Se2 exhibits ultralow klat along the crystallographic c direction and the value touches the diffusion limit of thermal conductivity above 600 K, which is even lower than the glass limit for TlCu3Se2. This ultralow and anisotropic thermal conductivity in TlCu3Se2 leads to a very high thermoelectric figure of merit (zT=1.6 at 650 K) along the crystallographic c direction. Many weakly dispersive phonon modes exist in low-energy regions with very low participation ratios, mostly arising from Tl movements, which might be acting as a rattler in this system. These Tl+ vibrations drastically reduce the overall thermal conductivity of TlCu3Se2. Inelastic neutron scattering (INS) data as a function of temperature will enable us to extract phenomena on the atomic scale and help us investigate the fundamental cause for the intrinsically ultralow klat in TlCu3Se2.
DOI: 10.5286/isis.e.rb2510083-1
title: Origin of low thermal conductivity in quasi-2D TlCu3Se2 with superior thermoelectric performance: An inelastic neutron scattering study

description: Semiconductors that simultaneously show ultralow lattice thermal conductivities (klat) and high thermoelectric figure-of-merit (zT) are rare, yet they are fundamentally intriguing and critically important for energy conversion. Recently, we have worked with TlCu3Se2, a new material being explored in thermoelectrics, and identified some of its interesting features. The material has a layered crystal structure comprised of infinite [Cu3Se2]- sheets extending along the crystallographic ab plane, and weakly-bonded Tl+ ions between two of such layers. TlCu3Se2 exhibits ultralow klat along the crystallographic c direction and the value touches the diffusion limit of thermal conductivity above 600 K, which is even lower than the glass limit for TlCu3Se2. This ultralow and anisotropic thermal conductivity in TlCu3Se2 leads to a very high thermoelectric figure of merit (zT=1.6 at 650 K) along the crystallographic c direction. Many weakly dispersive phonon modes exist in low-energy regions with very low participation ratios, mostly arising from Tl movements, which might be acting as a rattler in this system. These Tl+ vibrations drastically reduce the overall thermal conductivity of TlCu3Se2. Inelastic neutron scattering (INS) data as a function of temperature will enable us to extract phenomena on the atomic scale and help us investigate the fundamental cause for the intrinsically ultralow klat in TlCu3Se2.
DOI: 10.5286/isis.e.rb2510661
title: Operando SANS investigation of the sodium-ion pore-filling mechanism of in hard carbon anode in sodium-ion batteries

description: In this proposed work, we aim to study the pore-filling behaviour in high-performance hard carbon via operando SANS using modified single-layer pouch cells, aiming to provide representative evidence of the hard carbon in real-world applications throughout the plateau region, as well as the storage mechanism in the sloping regions. We will investigate the discharging/sodiation process and the under-reported charging/desodiation process (i.e., removal of the Na cluster from pores) during charging. More specifically, the SANS data will be analysed to get some information about the pore size, geometry, pore size distribution, SLD to attempt to quantify levels of sodiation. These significant insights will provide direct evidence for (or against) the pore-filling mechanisms. We expect to be able to provide clear instructions on the porosity design for hard carbon as an anode for Na-ion storage and be able to compare these results meaningfully with those of other hard carbon. Hard carbon design is quite varied and challenging to get right to justify this argument.
DOI: 10.5286/isis.e.rb2510718-1
title: Experimental manifestation of true magnetic ground state in a quasi-1-D spin-chain trimer iridate Ba5CuIr3O12

description: Quantum spin liquid (QSL) is an exotic state of matter in which the correlated magnetic moments continue to be fluctuating down to absolute zero temperature. Experimental and theoretical investigations for QSL phase have attracted considerable attention in recent condensed matter community. Geometrically frustrated magnetic lattices have been serving as the key ingredient for attaining the QSL ground state. In such a background, Ba5Ir3CuO12, a 2H-prototype spin-chain d5 iridate, is potential for accommodating exotic magnetic ground state due to the subtle balance between geometric frustration, low dimensionality, spin-orbit coupling, and structural disorder. Combined dc, ac magnetic susceptibility, and specific heat measurements clearly refute static magnetic ordering down to 0.05 K at least (neither a magnetic long-range ordering nor a spin-glass frozen state). Our zero-field (ZF) and longitudinal-field (LF) μSR characterizations down to 1.8 K refer to persistent dynamics of the iridium moments. At this point, in order to confirm the true magnetic ground state and ascertain the nature of local spin-spin correlations, we propose to perform in-depth microscopic magnetic probe μSR (both ZF and LF) measurements down to 0.04 K on EMU spectrometer of ISIS muon facility.
DOI: 10.3535/47w-66r-5h0
title: Digitaria ischaemum (Schreb.) Muhl.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/fk6-ljc-554
title: Helictochloa versicolor (Vill.) Romero Zarco

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2420042
title: Architecture of Sulfonate Polymer Brushes and their Complex with BMP-2

description: Bone morphogenetic proteins (BMPs) play an important role in tissue repair, making their incorporation into biomaterials scaffolds an important scientific challenge. Heparin facilitates BMP capture and retention but suffers from instability. Our recent study suggests biomimetic poly(sulfopropyl methacrylate) (PSPMA) and poly(styrene sulfonate) (PSS) brushes as stable BMP anchors. Characterisation via surface plasmon resonance and quartz crystal microbalance showed PSPMA's strong affinity for BMP2, impacting matrix deposition by fibroblasts. However, the brush morphology influences the BMP adsorption. Neutron reflectometry is the most sensitive charaterisation methodology to provide insights into PSPMA and PSS brush morphology, and BMP2 adsorption mechanisms, guiding scaffold engineering for regenerative medicine.
DOI: 10.5286/isis.e.rb2420042-1
title: Architecture of Sulfonate Polymer Brushes and their Complex with BMP-2

description: Bone morphogenetic proteins (BMPs) play an important role in tissue repair, making their incorporation into biomaterials scaffolds an important scientific challenge. Heparin facilitates BMP capture and retention but suffers from instability. Our recent study suggests biomimetic poly(sulfopropyl methacrylate) (PSPMA) and poly(styrene sulfonate) (PSS) brushes as stable BMP anchors. Characterisation via surface plasmon resonance and quartz crystal microbalance showed PSPMA's strong affinity for BMP2, impacting matrix deposition by fibroblasts. However, the brush morphology influences the BMP adsorption. Neutron reflectometry is the most sensitive charaterisation methodology to provide insights into PSPMA and PSS brush morphology, and BMP2 adsorption mechanisms, guiding scaffold engineering for regenerative medicine.
DOI: 10.5286/isis.e.rb2510718
title: Experimental manifestation of true magnetic ground state in a quasi-1-D spin-chain trimer iridate Ba5CuIr3O12

description: Quantum spin liquid (QSL) is an exotic state of matter in which the correlated magnetic moments continue to be fluctuating down to absolute zero temperature. Experimental and theoretical investigations for QSL phase have attracted considerable attention in recent condensed matter community. Geometrically frustrated magnetic lattices have been serving as the key ingredient for attaining the QSL ground state. In such a background, Ba5Ir3CuO12, a 2H-prototype spin-chain d5 iridate, is potential for accommodating exotic magnetic ground state due to the subtle balance between geometric frustration, low dimensionality, spin-orbit coupling, and structural disorder. Combined dc, ac magnetic susceptibility, and specific heat measurements clearly refute static magnetic ordering down to 0.05 K at least (neither a magnetic long-range ordering nor a spin-glass frozen state). Our zero-field (ZF) and longitudinal-field (LF) μSR characterizations down to 1.8 K refer to persistent dynamics of the iridium moments. At this point, in order to confirm the true magnetic ground state and ascertain the nature of local spin-spin correlations, we propose to perform in-depth microscopic magnetic probe μSR (both ZF and LF) measurements down to 0.04 K on EMU spectrometer of ISIS muon facility.
DOI: 10.3535/5jg-akl-pkp
title: Arrhenatherum elatius subsp. elatius

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/a7n-j7d-490
title: Juncus bulbosus subsp. kochii (F. W. Schultz) Reichg.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2510231-1
title: Small Angle Neutron Scattering to probe the mechanism of catalytic plastic cracking

description: Over 350 million metric tonnes of plastic are produced globally each year, with 55 % being discarded, Low-Density Polyethylene (LDPE), one of the most common polymers, takes centuries to decompose causing urban, and aquatic pollution. Whilst polymer recycling has been pushed for many decades, only 15 % of plastic is collected for recycling, with just 9 % actually being recycled. In the last 10 years processes such as polymer cracking with solid acid catalysts have been explored to form olefins, and aromatics, which would normally be synthesised from fossil fuels, thus establishing a “circular economy”, limiting waste, and lowering fossil fuel demand. Here we will perform SANS measurements on deuterated-eicosane/zeolite mixtures, to observe if this alkane (serving as a mimic for LDPE) can penetrate the pores of HZSM-5.

We will use a commercial high-silica HZSM-5 (Si/Al of 140, SLD of 3.4 x 10-6 Å-2 from previous studies). The high Si/Al ratio means fewer acid sites, and lower reactivity, allowing us to focus on the alkane’s accessibility, without reactions occurring. A blend of commercial deuterated and hydrogenated eicosane will be used for this study with the same SLD as the zeolite. Using the standard approximation, we anticipate C20 should have a radius of gyration of 2.8 Å, so should be able to diffuse into the pores of our HZSM-5 system. We anticipate this study will serve as a proof of principle work, leading to a further proposal using a LDPE system.
DOI: 10.5286/isis.e.rb2510493
title: Dynamics in the disordered phases of a paradigmatic molecular ferroelectric and barocaloric

description: Orientationally disordered ionic crystals are currently of great interest because of their diverse functionality, including ionic conduction; ferro-, piezo- and pyroelectricity; and heat transport and storage. However, the structural and dynamic changes across their order-disorder phase transitions are far more complex than their simple chemistry might suggest. Here we will investigate the paradigmatic material tetramethylammonium tetrachloroferrate, formed between two ions that are ubiquitous in "plastic ionic" crystals. This has no fewer than seven phases at ambient pressure between 150 and 400 K. Structural characterisation of these has so far been limited to their average crystallography, but other experimental evidence (for instance, from electron spin resonance) intriguingly suggests substantial local correlations and variations in dynamics between the phases. This is the second of two related proposals in which we aim to reveal for the first time how the local structure and dynamics change through the series of phase transitions. Here, we will collect quasielastic neutron scattering data from the tetramethylammonium ion motion in each phase. This will complement neutron pair distribution function data collected in our first proposal. These data will give unprecedented insight into the complex energy landscape in this material, and more generally into how orientational disorder can be designed to achieve specific functionality.
DOI: 10.5286/isis.e.rb2510493-1
title: Dynamics in the disordered phases of a paradigmatic molecular ferroelectric and barocaloric

description: Orientationally disordered ionic crystals are currently of great interest because of their diverse functionality, including ionic conduction; ferro-, piezo- and pyroelectricity; and heat transport and storage. However, the structural and dynamic changes across their order-disorder phase transitions are far more complex than their simple chemistry might suggest. Here we will investigate the paradigmatic material tetramethylammonium tetrachloroferrate, formed between two ions that are ubiquitous in "plastic ionic" crystals. This has no fewer than seven phases at ambient pressure between 150 and 400 K. Structural characterisation of these has so far been limited to their average crystallography, but other experimental evidence (for instance, from electron spin resonance) intriguingly suggests substantial local correlations and variations in dynamics between the phases. This is the second of two related proposals in which we aim to reveal for the first time how the local structure and dynamics change through the series of phase transitions. Here, we will collect quasielastic neutron scattering data from the tetramethylammonium ion motion in each phase. This will complement neutron pair distribution function data collected in our first proposal. These data will give unprecedented insight into the complex energy landscape in this material, and more generally into how orientational disorder can be designed to achieve specific functionality.
DOI: 10.3535/xbj-ak1-kxc
title: Drosera rotundifolia L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2420432-1
title: In-situ Neutron Powder Diffraction of Zeolitic Imidazolate Frameworks under Pressurised Intrusion of Aqueous Solutions

description: The pressurised intrusion of non-wetting liquids in porous framework materials presents an attractive pathway to engineering new impact mitigation systems. In this process, external pressure forces liquid water or aqueous solutions to intrude hydrophobic nanopores, thereby converting mechanical work into interfacial energy by generating huge liquid-solid interfaces. Our in-house studies found that cage-type Zeolitic Imidazolate Frameworks can be effective and reusable shock absorbers through this mechanism, setting them apart from conventional protection materials. Furthermore, it’s shown that alcohol can be an effective modulator of water intrusion behaviours, but the mechanisms related to this are not well understood yet. Herein, we propose to use in-situ neutron powder diffraction at the GEM beamline in ISIS to study the intrusion of liquid solutions in ZIF-8 under mechanical pressure.
DOI: 10.5286/isis.e.rb2510231
title: Small Angle Neutron Scattering to probe the mechanism of catalytic plastic cracking

description: Over 350 million metric tonnes of plastic are produced globally each year, with 55 % being discarded, Low-Density Polyethylene (LDPE), one of the most common polymers, takes centuries to decompose causing urban, and aquatic pollution. Whilst polymer recycling has been pushed for many decades, only 15 % of plastic is collected for recycling, with just 9 % actually being recycled. In the last 10 years processes such as polymer cracking with solid acid catalysts have been explored to form olefins, and aromatics, which would normally be synthesised from fossil fuels, thus establishing a “circular economy”, limiting waste, and lowering fossil fuel demand. Here we will perform SANS measurements on deuterated-eicosane/zeolite mixtures, to observe if this alkane (serving as a mimic for LDPE) can penetrate the pores of HZSM-5.

We will use a commercial high-silica HZSM-5 (Si/Al of 140, SLD of 3.4 x 10-6 Å-2 from previous studies). The high Si/Al ratio means fewer acid sites, and lower reactivity, allowing us to focus on the alkane’s accessibility, without reactions occurring. A blend of commercial deuterated and hydrogenated eicosane will be used for this study with the same SLD as the zeolite. Using the standard approximation, we anticipate C20 should have a radius of gyration of 2.8 Å, so should be able to diffuse into the pores of our HZSM-5 system. We anticipate this study will serve as a proof of principle work, leading to a further proposal using a LDPE system.
DOI: 10.21233/n3c21h
title: Makar Inlet pollen surface sample dataset

description: Raw data for the Makar Inlet pollen surface sample dataset submitted to the Neotoma Paleoecology Database. Data is available through the landing page in JSON format. The landing page referenced by the DOI also contains links to publications and a map-based viewer for the dataset. The Neotoma Paleoecology Database maintains a homepage at https://www.neotomadb.org.
DOI: 10.34847/nkl.fbbd3p7h
title: Tracé - Temples du Capitole

description: Tracé trois temples. C 1. Façade est.
description: Plan, relevé, niveau, stratigraphie.../Plano, alzado, planta, estratigrafía...
description: Tracé/Trama Minute/Original
description: 1450*1100
description: Trait/Dibujo lineal
description: Boîte 10
description: Coverage: Baelo Claudia
description: Coverage: Bolonia (Cádiz, España)
description: Coverage: Temples du Capitole/Templos del Capitolio
description: date: s.d.
description: coverage: Baelo Claudia
description: coverage: Bolonia (Cádiz, España)
description: coverage: Temples du Capitole/Templos del Capitolio
DOI: 10.3535/kcx-bn1-5vj
title: Drosera × anglica Huds.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/wqb-jvw-nr4
title: Sanicula europaea L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2420432
title: In-situ Neutron Powder Diffraction of Zeolitic Imidazolate Frameworks under Pressurised Intrusion of Aqueous Solutions

description: The pressurised intrusion of non-wetting liquids in porous framework materials presents an attractive pathway to engineering new impact mitigation systems. In this process, external pressure forces liquid water or aqueous solutions to intrude hydrophobic nanopores, thereby converting mechanical work into interfacial energy by generating huge liquid-solid interfaces. Our in-house studies found that cage-type Zeolitic Imidazolate Frameworks can be effective and reusable shock absorbers through this mechanism, setting them apart from conventional protection materials. Furthermore, it’s shown that alcohol can be an effective modulator of water intrusion behaviours, but the mechanisms related to this are not well understood yet. Herein, we propose to use in-situ neutron powder diffraction at the GEM beamline in ISIS to study the intrusion of liquid solutions in ZIF-8 under mechanical pressure.
DOI: 10.5286/isis.e.rb2510020
title: Synthesis-dependent local structure in holmium orthoborate HoBO3

description: We propose a neutron total scattering experiment on two samples of HoBO3 synthesised differently, one quenched and one annealed, including a variable-temperature study. This experiment is a continuation of RB2010022 which revealed disorder in the boron and oxygen positions and coordination numbers in a series of LnBO3 samples (Ln = Y, Tb, Ho, Er, Yb). The aim of the present proposal is to gather supporting evidence for our hypothesis that the disorder observed previously was caused by the synthesis method.
DOI: 10.5286/isis.e.rb2510020-1
title: Synthesis-dependent local structure in holmium orthoborate HoBO3

description: We propose a neutron total scattering experiment on two samples of HoBO3 synthesised differently, one quenched and one annealed, including a variable-temperature study. This experiment is a continuation of RB2010022 which revealed disorder in the boron and oxygen positions and coordination numbers in a series of LnBO3 samples (Ln = Y, Tb, Ho, Er, Yb). The aim of the present proposal is to gather supporting evidence for our hypothesis that the disorder observed previously was caused by the synthesis method.
DOI: 10.5286/isis.e.rb2590120-1
title: Possible High Temperature Magnetic Order in Phase 2 CuTCNQ
DOI: 10.34816/ifao.archives.232979
title: SAQQARA_nb_1994_06048

description: Référence : nb_1994_06048<br />Site : Saqqara<br />Secteur : Mastaba de Ti<br />Type : photographie<br />
DOI: 10.3535/jdb-v1z-vdf
title: Lupinus luteus L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/nwn-sxa-9t2
title: Anthyllis vulneraria L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.5286/isis.e.rb2030016-7
title: high efficiency nGEM calibration