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6 results for “Noble metals”
Growth of carbon nanofibres on molybdenum carbide nanowires and their self-decoration with noble-metal nanoparticles
<p>High specific surface area makes carbon nanofibres suitable for catalyst support. Here we report on optimisation of carbon nanofibre (CNF) growth on molybdenum carbide nanowires (MoCNW) by direct carburization of Mo<sub>6</sub>S<sub>2</sub>I<sub>8</sub> nanowire bundles. Typical CNFs obtained by this method are several hundreds of nanometres long at a diameter of 10-20 nm. We show that nanofibre growth does not depend on the initial morphology of the nanowires: nanofibres grow on individual bundles of MoCNW, on dense networks of nanowires deposited on silicon substrate, and on free-standing nanowire foils. We find that carbon nanofibres remain firmly attached to the nanowires even if they are modified into Mo<sub>2</sub>C and further into MoS<sub>2</sub> nanowires. The method thus enables production of a novel hybrid material composed of MoS<sub>2</sub> nanowires densely covered with carbon nanofibres. We have additionally shown that the obtained CNFs can easily be self-decorated with platinum nanoparticles with diameters of several nanometres directly from water solution at room temperature without reducing agents. Such efficient synthesis and decoration process yield hybrid platinum/CNF/molybdenum-based NW materials, which are a promising material for a wide range of possible future applications, including sensitive sensorics and improved catalysis.</p>
Synthesis of Ti3AuC2, Ti3Au2C2 and Ti3IrC2 by noble-metal substitution reaction in Ti3SiC2 for high-temperature-stable ohmic contacts to SiC
<p>Repository data for paper "Synthesis of Ti<sub>3</sub>AuC<sub>2</sub>, Ti<sub>3</sub>Au<sub>2</sub>C<sub>2</sub> and Ti<sub>3</sub>IrC<sub>2</sub> by noble-metal substitution reaction in Ti<sub>3</sub>SiC<sub>2</sub> for high-temperature-stable ohmic contacts to SiC".</p> <p>Detailed information:</p> <p>Data from calculations include relaxed structures, electronic band-structure (selected compounds), electronic density of states and crystal overlap Hamilton population (selected compounds). In addition, spin-orbit coupling used for selected compounds. Data fro each compound are found in separate zip files. Scripts used to extract data are found in tools.zip.</p> <p>EDX-mapping:<br> Fig1d.xlsx</p> <p>XRD data:<br> Fig1h.xlsx, Fig2g.xlsx, FigS3.xlsx, FigS7a.xlsx</p> <p>I/V-measurements:<br> Fig4c.xlsx, FigS7b.xlsx, FigS13.xlsx</p> <p>Electrical resistance:<br> FigS5.xlsx, FigS14.xlsx</p>
Dataset for CFD4NRS-9 conference paper "Simulation of noble metal particle growth and removal in the molten salt fast reactor"
<p>Dataset used for the results presented in the CFD4NRS-9 conference paper "Simulation of noble metal particle growth and removal in the molten salt fast reactor". Also the code used to generate results is included (it is also publicly available at https://github.com/edofrederix/flotationFoam), and contains a README with instructions. The plots can be generated with their respective Python files.</p>
Growth of carbon nanofibres on molybdenum carbide nanowires and their self-decoration with noble-metal nanoparticles
Open the record for dataset details and reuse information.
Emissivity measurements on noble metals (dataset)
<p>Dataset acquired in collaboration between the University of the Basque Country UPV/EHU and the Physikalisch-Technische Bundesanstalt (PTB Berlin).</p>
Activity Trends for the Selective Oxidation of 2-Propanol to Acetone on Noble Metal Electrodes in Alkaline Electrolyte
<p>Activity Trends for the Selective Oxidation of 2-Propanol to Acetone on Noble Metal Electrodes in Alkaline Electrolyte</p> <p>Cite this: ACS Catal. 2023, 13, 22, 14562–14569<br>Publication Date:October 30, 2023<br>https://doi.org/10.1021/acscatal.3c03423<br>Copyright © 2023 American Chemical Society</p> <p>Fuel cells based on 2-propanol can be used to produce electricity utilizing the hydrogen stored in liquid organic hydrogen carriers. While the focus has previously been on acidic media, where only platinum-based electrodes are active, we explore here the oxidation of 2-propanol in alkaline solutions on different noble metal electrodes. Using experimental and computational methods, we find that the reaction is selective to acetone, whereas C–C bond breaking and the formation of adsorbed CO do not take place. The onset potential increases along the series Rh < Pt < Pd < Au, a trend that correlates with the adsorption energy of acetone on the respective surfaces. The oxidation rate decays under potentiostatic conditions due to the progressive accumulation of acetone at the surface. At high overpotentials, the reaction is limited by oxide formation. Given that alkaline systems are not restricted to exclusively platinum-based electrodes, a broader range of materials may be found that act as anodes for efficient 2-propanol fuel cells.</p>
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.