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112 results for “anodization”
Dataset for publication Synthesis of tubular MXenes with carbon fiber template and use as anodes in lithium-ion batteries
<p>The dataset contains all relevant data and figures regarding the manuscript "Synthesis of tubular MXenes with carbon fiber template and use as anodes in lithium-ion batteries".</p> <p>All Figures are in tiff format and all relevant data are in csv formats. </p> <p>The data in csv format are labelled as specified in the corresping images (e.g. Figure 1a csv file corresponds to data used to plot graphs from Figure 1a etc.). </p> <p>Axis labeling and units are always specified at the beginning of individual columns. If more than one curve was plotted from the csv file, the conditions can also be found at the beginning of corresponding columns.</p>
One-Step Grown Carbonaceous Germanium Nanowires and Their Application as Highly Efficient Lithium-Ion Battery Anodes
<p>Developing a simple, cheap, and scalable synthetic method for the fabrication of functional nanomaterials is crucial. Carbon-based nanowire nanocomposites could play a key role in integrating group IV semiconducting nanomaterials as anodes into Li-ion batteries. Here, we report a very simple, one-pot solvothermal-like growth of carbonaceous germanium (C-Ge) nanowires in a supercritical solvent. C-Ge nanowires are grown just by heating (380–490 °C) a commercially sourced Ge precursor, diphenylgermane (DPG), in supercritical toluene, without any external catalysts or surfactants. The self-seeded nanowires are highly crystalline and very thin, with an average diameter between 11 and 19 nm. The amorphous carbonaceous layer coating on Ge nanowires is formed from the polymerization and condensation of light carbon compounds generated from the decomposition of DPG during the growth process. These carbonaceous Ge nanowires demonstrate impressive electrochemical performance as an anode material for Li-ion batteries with high specific charge values (>1200 mAh g<sup>–1</sup> after 500 cycles), greater than most of the previously reported for other “binder-free” Ge nanowire anode materials, and exceptionally stable capacity retention. The high specific charge values and impressively stable capacity are due to the unique morphology and composition of the nanowires.</p>
Electrochemical Characterization and Modelling of Anode and Electrolyte Supported Solid Oxide Fuel Cells
<p>Datasets from the paper: "Electrochemical Characterization and Modelling of Anode and Electrolyte Supported Solid Oxide Fuel Cells", Front. Energy Res., 27 September 2021.</p> <p>The work was carried out within the framework of the European Project AD ASTRA. This project has received funding from the Fuel Cells and Hydrogen 2 Joint Undertaking under <strong>Grant Agreement No 825027</strong>. This Joint Undertaking receives support from the European Union's Horizon 2020 research and innovation programme and Hydrogen Europe.</p>
Code and data from: Influence of heat transfer and wetting angle on condensable fluid flow through nanoporous anodic alumina membranes
<p>Data and matlab code to compute all figures contained in the manuscript submitted to The Journal of Physical Chemistry C.</p>
Dataset for the publication "Empowering All-Solid-State Li-Ion Batteries with Self-Stabilizing Sn-Based Anodes"
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Self-sacrificing and self-supporting biomass carbon anode assisted water electrolysis for low-cost hydrogen production
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Energy distribution of negatively and positively charged ions in a magnetron sputtering discharge with a tungsten cathode and a positively biased anode in an argon/oxygen gas mixture.
<p>The energy distribution of negatively and positively charged ions in a magnetron discharge with a positively biased anode is investigated. A tungsten cathode operated in an argon/oxygen gas mixture is employed. The magnetron is operated either in direct current (DCMS) or in high power impulse magnetron sputtering (HiPIMS) mode.</p>
Data from: The effect of ethylene glycol on pore arrangement of anodic aluminum oxide prepared by hard anodization
The influence of ethylene glycol (EG) addition on pore self-ordering process in anodic aluminum oxide (AAO) membranes prepared by hard anodization (HA) was investigated. It was illustrated that EG has a substantial effect on the pore arrangement of AAO, which revealed that a smaller pore size can be obtained as EG concentration reaching 20 wt% in aqueous electrolyte. The number of estimated defects of AAO increase significantly with additive EG concentration at 50 wt%. Excellent ordering pore was realized when the samples were anodized in the 30 wt%-EG-containing aqueous electrolyte.electrolyte. The number of estimated defects of AAO increases significantly upon the added EG concentration reaching 50wt%. Excellent ordering pore was achieved when the samples were anodized in a 30wt%-EG-containing aqueous electrolyte.
Data from: Effect of Hf-doping on electrochemical performance of anatase TiO2 as an anode material for lithium storage
Hafnium-doped titania (Hf/Ti = 0.01; 0.03; 0.05) had been facilely synthesized via a template sol-gel method on carbon fiber. Physicochemical properties of the as-synthesized materials were characterized by X-ray diffraction, Raman spectroscopy, scanning electron microscopy, energy-dispersive X-ray analysis, scanning transmission electron microscopy, X-ray photoelectron spectroscopy, thermogravimetry analysis, and Brunauer−Emmett−Teller measurements. It was confirmed that Hf4+ substitute in the Ti4+ sites, forming Ti1–xHfxO2 (x = 0.01; 0.03; 0.05) solid solutions with an anatase crystal structure. The Ti1–xHfxO2 materials are hollow microtubes (length of 10–100 μm, outer diameter of 1–5 μm) composed of nanoparticles (average size of 15–20 nm) with surface area of 80–90 m2 g–1 and pore volume of 0.294–0.372 cm3 g–1. The effect of hafnium ions incorporation on electrochemical behavior of anatase TiO2 as Li-ion battery anode was investigated by galvanostatic charge/discharge and electrochemical impedance spectroscopy. It was established that Ti0.95Hf0.05O2 shows significantly higher reversibility (154.2 mAh g–1) after 35-fold cycling at C/10 rate in comparison with undoped titania (55.9 mAh g–1). The better performance offered by Hf4+ substitution of the Ti4+ into anatase TiO2 mainly results from more open crystal structure, which has been achieved via the difference in ionic radius values of Ti4+ (0.604 Å) and Hf4+ (0.71 Å). The obtained results are in a strong accordance with ones for anatase TiO2 doped via Zr4+ (0.72 Å) published earlier. Furthermore, improved electrical conductivity of Hf-doped anatase TiO2 materials due to charge redistribution in the lattice and enhanced interfacial lithium storage due to increased surface area directly depending on Hf/Ti atomic ratio have beneficial effect on electrochemical properties.
Room-Temperature Anode-Less All-Solid-State Batteries via the Conversion Reaction of Metal Fluorides
<p>All-solid-state batteries (ASSBs) that employ anode-less electrodes have drawn attention from across the battery community because they offer competitive energy densities and a markedly improved cycle life. Nevertheless, the composite matrices of anode-less electrodes impose a substantial barrier for lithium-ion diffusion and inhibit operation at room temperature. To overcome this drawback, here, the conversion reaction of metal fluorides is exploited because metallic nanodomains formed during this reaction induce an alloying reaction with lithium ions for uniform and sustainable lithium (de)plating. Lithium fluoride (LiF), another product of the conversion reaction, prevents the agglomeration of the metallic nanodomains and also protects the electrode from fatal lithium dendrite growth. A systematic analysis identifies silver (I) fluoride (AgF) as the most suitable metal fluoride because the silver nanodomains can accommodate the solid-solution mechanism with a low nucleation overpotential. AgF-based full cells attain reliable cycling at 25 °C even with an exceptionally high areal capacity of 9.7 mAh cm<sup>−2</sup> (areal loading of LiNi<sub>0.8</sub>Co<sub>0.1</sub>Mn<sub>0.1</sub>O<sub>2</sub> = 50 mg cm<sup>–2</sup>). These results offer useful insights into designing materials for anode-less electrodes for sulfide-based ASSBs.</p>
Safe extended-range cycling of Li4Ti5O12-based anodes for ultra-high capacity thin-film batteries
<p>Dataser for article "Safe extended-range cycling of Li<sub>4</sub>Ti<sub>5</sub>O<sub>12</sub>-based anodes for ultra-high capacity thin-film batteries" in Mater. Today Energy 2022.</p> <p>The data includes:</p> <p>-XRD and Raman patterns of the films (Fig. 2)</p> <p>-Cyclic voltammograms and charge-dischage profiles of the different films (Fig. 4)</p> <p>-Capacity vs. C-rate for the different flms (Fig. 5)</p> <p>-Capacity vs. cycle number at different electrochemical window (Fig. 6)</p> <p>- Operando Spectroscopic Ellipsometry - Including operando charge-discharge profile vs time in the extended voltage window, the imaginary part of the permittivity as a function of energy, and extracted ellipsometry data, the amplitude of the second oscilator and the imaginary part of the permittivity at 1.5eV as a function of time (Fig. 7)</p> <p>-Ex- situ Raman spectroscopy (Fig. 8)</p>
Application of murexide as a capping agent for fabrication of magnetite anodes for supercapacitors: experimental and DFT studies (supporting files)
<p>Supporting files.</p>
original data for "Operando Surface Optical Reflectance Microscopy Study of Corrosion Film Growth on a Ni-Cr-Mo Alloy During Anodic Polarization"
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Anodal tDCS in Chronic Migraine With Medication Overuse
ClinicalTrials.gov study NCT04336267. IPD Sharing: NO. Countries: 0. Publications: 25.
Use of Anodal tDCS to Enhance Upper Limb Recovery in Stroke
ClinicalTrials.gov study NCT07151729. IPD Sharing: NO. Countries: 1. Publications: 0.
Anodal Transcranial Direct Current Stimulation Over the Contralesional Hemisphere on Motor Recovery in Subacute Stroke Patients
ClinicalTrials.gov study NCT03635008. IPD Sharing: UNDECIDED. Countries: 1. Publications: 0.
Data from: The effect of ethylene glycol on pore arrangement of anodic aluminum oxide prepared by hard anodization
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Data from: Effect of Hf-doping on electrochemical performance of anatase TiO2 as an anode material for lithium storage
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Data from: Electrospinning preparation of oxygen-deficient nano TiO2-x/carbon fibre membrane as a self-standing high performance anode for Li-ion batteries
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Data from: Anodic behaviour of Cu, Zr and Cu-Zr alloy in molten LiCl-KCl eutectic
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