DataCat: The Research Data Catalogue (University of Liverpool)
Not a member yet
921 research outputs found
Sort by
Single-Molecule Conductance, I-V, and NMR spectroscopy for a series of bis(indeno)acenes
No full textAs in title.
Raw data and LabVIEW VIs for data analysis
See README.txt for detail
NATO Generic Destroyer Surface Pressure Coefficients
No full textThis data repository entry provides results from a wind tunnel experiment in which surface pressures for the NATO Generic Destroyer topside geometry (i.e., above the waterline) were measured around the full azimuth of wind directions. The dataset consists of mean pressure coefficients measured for a 1:200 scale model of the ship (equivalent to 0.75 m total ship length)
Revealing the Local Structure and Dynamics of the Solid Li-Ion Conductor Li3P5O14
No full textThe development of fast Li ion-conducting materials for use as solid electrolytes that provide sufficient electrochemical stability against electrode materials is paramount for the future of all solid-state batteries. Advances on these fast ionic materials are dependent on building structure−ionic mobility−function relationships. Here, we exploit a series of multinuclear and multidimensional nuclear magnetic resonance (NMR) approaches, including 6Li and 31P magic angle spinning (MAS), in conjunction with density functional theory (DFT) to provide a detailed understanding of the local structure of the ultraphosphate Li3P5O14, a promising candidate for an oxide-based Li ion conductor that has been shown to be a highly conductive, energetically favorable, and electrochemically stable potential solid electrolyte. We have reported a comprehensive assignment of the ultraphosphate layer and layered Li6O1626− chains through 31P and 6Li MAS NMR, respectively, in conjunction with DFT. The chemical shift anisotropy of the eight resonances with the lowest 31P chemical shift is significantly lower than that of the 12 remaining resonances, alluding to the phosphate bonding nature of these P sites being one that bridges to three other phosphate groups. We employed a number of complementary 6,7Li NMR techniques, including MAS variable-temperature line narrowing spectra, spin-alignment echo (SAE) NMR, and relaxometry, to quantify the lithium ion dynamics in Li3P5O14. Detailed analysis of the diffusion-induced spin−lattice relaxation data allowed for experimental verification of the three-dimensional Li diffusion previously proposed computationally. The 6Li NMR relaxation rates suggest sites Li1 and Li5 (the only five-coordinate Li site) are the most mobile and are adjacent to one another, both in the a−b plane(intralayer) and on the c-axis (interlayer) .As shown in the 6Li−6Li exchange spectroscopy NMR spectra, sites Li1 and Li5 likely exchange with one another both between adjacent layered Li6O1626− chains and through the centre of the P12O3612− rings forming the three-dimensional pathway. The understanding of the Li ion mobility pathways in high-performing solid electrolytes outlines a route for further development of such materials to improve their performance
Effect of Lithium Concentration on the Network Connectivity of Nuclear Waste Glasses
No full textStructure of borosilicate glasses with varying Li2O contents were investigated using Magic Angle Spinning (MAS) Nuclear Magnetic Resonance (NMR), employing 6Li, 11B, 23Na, 27Al and 29Si nuclei. 11B MAS NMR revealed that increasing Li2O contents result in formation of [BO4]- sites at the expense of BO3. 11B{6Li} and 27Al{6Li} dipolar heteronuclear multiple quantum correlation (D-HMQC) NMR revealed Li as a charge compensator for anionic tetrahedral sites with increased Li. 11B{6Li} J-coupling mediated HMQC NMR highlighted the possible association of Li with non-bridging oxygens on Q2 and Q3 sites, indicating its dual role in the glass network. 29Si and 23Na MAS NMR spectra showed depolymerisation of the silicate network and shortening of Na-O bond lengths with increased Li. NMR results are supported by Raman spectroscopy and thermal analysis that indicate depolymerisation of the silicate network and a reduction in glass transition temperature at higher Li content
Data for equine subpalpebral lavage systems 2015-2024 at Philip Leverhulme Equine Hospital
No full textData for indications and complications of equine subpalpebral lavage systems 2015-2024 at Philip Leverhulme Equine Hospita
Ethnic Density and First Episode Psychosis in the British Pakistani Population: Findings from the East Lancashire Early Intervention Service
No full textData collected by the East Lancashire Early Intervention Service, identifying all cases of first episode psychosis (FEP) within their catchment area between 2012 and 2020 to examine incidence rates in Lower Super Output Areas by ethnic density
Cation Distribution and Anion Transport in the La3Ga5-xGe1+xO14+0.5x Langasite Structure
No full textExploration of compositional disorder using conventional diffraction-based techniques is challenging for systems containing isoelectronic ions possessing similar coherent neutron scattering lengths. Here, we show that a multinuclear solid-state Nuclear Magnetic Resonance (NMR) approach provides compelling insight into the Ga3+/Ge4+ cation distribution and oxygen anion transport in a family of solid electrolytes with langasite structure and La3Ga5-xGe1+xO14+0.5x composition. Ultrahigh field 71Ga Magic Angle Spinning (MAS) NMR experiments acquired at 35.2 T offer striking resolution enhancement, thereby enabling clear detection of Ga sites in different coordination environments. Three-connected GaO4, four-connected GaO4 and GaO6 polyhedra are probed for the parent La3Ga5GeO14 structure, while one additional spectral feature corresponding to the key (Ga,Ge)2O8 structural unit which forms to accommodate the interstitial oxide ions is detected for the Ge4+-doped La3Ga3.5Ge2.5O14.75 phase. The complex spectral line shapes observed in the MAS NMR spectra are reproduced very accurately by the NMR parameters computed for a symmetry-adapted configurational ensemble that comprehensively models site disorder. This approach further reveals a Ga3+/Ge4+ distribution across all Ga/Ge sites that is controlled by a kinetically-governed cation diffusion process. Variable temperature 17O MAS NMR experiments up to 700 °C importantly indicate that the presence of interstitial oxide ions triggers chemical exchange between all oxygen sites, thereby enabling atomic-scale understanding of the anion diffusion mechanism underpinning the transport properties of these materials
Drawing on Experience Volume 2 - Creative Collaborations with Experts by Experience
Get PDFThis zine (pronounced zeen) was created by NIHR ARC-NWC public advisers who took part in a collaborative workshop in Liverpool, UK, on the 4th March 2024.
The artwork was created in response to small group discussions about experiences, and impact, of being involved in health research
Data sources for qualitative element of RADOSS associated with paper: ‘Knowledge exchange’ workshops to optimise development of a risk prediction tool to assist conveyance decisions for suspected seizures – Part of the Risk of ADverse Outcomes after a Suspected Seizure (RADOSS) project
No full textRADOSS is a multicomponent project. The data set here includes data from the initial qualitative/ knowledge exchange workshops completed with service users and clinicians. This data is the basis of work presented in the paper titled '‘Knowledge exchange’ workshops to optimise development of a risk prediction tool to assist conveyance decisions for suspected seizures – Part of the Risk of ADverse Outcomes after a Suspected Seizure (RADOSS) project'. The key elements and associated data archived here includes:
3 workshops with urgent and emergency care clinicians - Anonymised transcripts are archived here for each, with participant characteristics presented at the start of each.
3 workshop with service users - Anonymised fields notes are archived here for each workshop and participant characteristics noted on each. Fields notes and direct audio were used for the rapid analysis of this element of data collection and so transcripts are not available. For each workshop, participants worked together to populate a table of suggested candidate predictors for testing. These are also archived here in an anonymised form.
Any use of data files is subject to permission from the lead author and must be acknowledged. It should not be used within explicit written permission
Time-resolved vibrational spectroscopic study of molecular nanoaggregate photocatalysts
Get PDFTime resolved infra-red spectra of CNP in CH3Cl and the nanoaggregates CNP-s and CNP-f, as indicated. Each species is probed in the ps-ns and ns-µs timescales, as indicated. Each file contains a matrix of data in tab delimited format
Access Repository Dashboard
Do you manage DataCat: The Research Data Catalogue (University of Liverpool)? Access insider analytics, issue reports and manage access to outputs from your repository in the CORE Repository Dashboard!