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Improving hydrogen generation from biomass and solid waste by combining sonophotocatalysis through carbon-based materials: Challenges and future perspectives
No full textEnvironmental pollution is becoming one of the main issues facing human civilisation as a result of the world's growing industrialisation. Using limitless solar energy, photocatalysis may be used to address environmental issues. Whilst, the incorporation of ultrasonic cavitation in the various processes such as fenton-like process, electrochemical process, and specially sono-photocatalysis that offers ideal conditions for increasing biomass fragmentation and conversion into target products. and green hydrogen within a lesser reaction time. The scientific community and industry have taken a serious interest in the intensification of ultrasonic processes for a variety of applications, as well as the resulting synergistic effects based on conventional comparison in literature. In light of this, the purpose of this review is to summarize the current research in the field, provide an overview of the recent studies of ultrasound-assisted different catalysis process for hydrogen production and discuss their limits and validity, compare them as conventional techniques. Finally, a few future perspectives in form of suggestions on the ultrasound-assisted photocatalysis for hydrogen production from a various biomass models and different wastes, and highlighting the role and recent evolution of carbon-based materials in this field are presented together with current issues and challenges and clarify future attitudes in the hopes of exploring this ideal combination for large-scale H2 production.</p
Dane artykułu "Wyniki badań odpowiedzi gazochromowej na wodór cienkich warstw WO3 naniesionych za pomocą parowania wiązką elektronową"
No full textDane dotyczą wyników opublikowanych w artykule: "Wyniki badań odpowiedzi gazochromowej na wodór cienkich warstw WO3 naniesionych za pomocą parowania wiązką elektronową", Wiktoria Weichbrodt, Michał Mazur, DOI:10.5604/01.3001.0054.7919Rys. 4. Widma transmisji światła cienkiej warstwy WO3 wygrzewanej w temperaturze 400°CRys. 5a. Widma transmisji światła cienkiej warstwy WO3 wygrzewanej w temperaturze 400°C z naniesioną warstwą katalizatora podczas procesu gazochromowego dla stężenia wodoru 50 ppmRys. 5b. Widma transmisji światła cienkiej warstwy WO3 wygrzewanej w temperaturze 400°C z naniesioną warstwą katalizatora podczas procesu gazochromowego dla stężenia wodoru 500 ppmPomiary widm transmisji światła zostały wykonane z użyciem spektrofotometru Ocean Optics QE65000 i źródła DH-BAL 2000 z lampą halogenową i deuterową w zakresie spektralnym 300-1000 nm z wykorzystaniem oprogramowania SpectraSuite. Widma zmierzono podczas wprowadzania powietrza i mieszaniny H2/Ar o stężeniu wodoru 50 oraz 500 ppm dla różnych interwałów czasowych. Dane z rys. 4 zostały zebrane dla warstwy bez katalizatora, a z rys. 5a i 5b dla warstwy z katalizatorem Pd.</p
Physicochemical data supporting the study of lipooligourea–lipid membrane interactions
No full textThis dataset supports the publication Mechanistic Insights into Lipooligourea–Lipid Membrane Interactions (Burdach et al., J. Phys. Chem. B, 2025), which investigates the membrane-disruptive properties of the synthetic cationic foldamer C10-OU4. The data includes Langmuir monolayer isotherms, QCM-D frequency and dissipation shifts, ATR-FTIR spectra (both p- and s-polarized), and calculations of chain order parameters and molecular tilt angles for model lipid systems mimicking Gram-positive bacterial membranes. The provided data illustrate the concentration-dependent mechanism of membrane disruption, from surface binding to full bilayer disintegration. This dataset enables further analysis and validation of the foldamer’s interaction with lipid bilayers and can support ongoing efforts in the design of membrane-active antimicrobial agents.</p
Research data for : Cubic elasticity of porous materials produced by additive manufacturing: experimental analyses, numerical and mean‑field modelling
No full textThis dataset contains research data used to prepare the publication:Kowalczyk-Gajewska K., Maj M., Bieniek K., Majewski M., Opiela K.C., Zieliński T.G. "Cubic elasticity of porous materials produced by additive manufacturing: experimental analyses, numerical and mean-field modeling". Archives of Civil and Mechanical Engineering, Vol.24 (2024), 34 (22 pages). DOI: 10.1007/s43452-023-00843-z.This research was supported by the National Science Centre (NCN), Poland, under grant agreement 2021/41/B/ST8/04492.All data are provided in columns in ASCII (.txt) files.Files with names starting with the word "ANALYTIC" contain analytical estimations of elastic constants (with respect to the porosity of the material) using Voigt, Mori-Tanaka, or custer method, as specified in the filename. These results were obtained using codes written in MATLAB.Files with names starting with the acronym "FEM" contain results of numercial calculations of elastic constants (with respect to the porosity of the material) using the Finite Element Method. These results were obtained using COMSOL Multiphysics.The acronyms "RC", "BCC", and "FCC" used in the file names stand for "regular cubic", "body-centered cubic", and "face-centered cubic", respectively. They refer to the arrangement of spherical pores in a cubic cell.In each file, the vales of elastic material constants are given in columns in relation to the porosity of the material, which is related to the solid fraction. Porosity and solid fraction are related to the ratio of the pore diameter to the cell edge.Explanation of column names (labels):Dp/Lc = pore diameter to cell edge ratioPorosity = porositySolidFr = solid fractionK = bulk modulusE = Young modulus (isotropy)Ee = Young modulus (along the cell edge)Ed = Young modulus (along the cell diagonal)G = shear modulus (isotropy)Ge = shear modulus (along the cell edge)Ge = shear modulus (along the cell diagonal)nu = Poisson coefficient (isotropy)nue = Poisson coefficient (along the cell edge)nud = Poisson coefficient (along the cell diagonal)</p
Recycling plastic waste by solid phase mixing
No full textThe deposited data contain results obtained from measurements: SEM, TEM, OIT, DSC, TGA, GPC, NMR, and tensile tests.The attached data are provided in the form of text and Excel files as well as source files typical for the respective software used.The attached data were obtained using the following instruments: Solid-state NMR spectra were recorded on a Bruker AVANCE III WB 400 MHz spectrometer. The spinning rate for all experiments was 6 kHz. 13C cross-polarization magic-angle spinning spectra were obtained under two-pulse-phasemodulating proton decoupling. A recycle delay is 2 s. 1H spin−lattice relaxation time measurements both in the laboratory and in rotating frames T1 and T1ρ, respectively, were measured at room temperature by a saturation recovery method and a spin lock method, respectively. Thermal behavior of samples was probed with a DSC Q20 differential scanning calorimeter (TA Instruments) during heating with the rate of 10 °C/min. Samples of the 7−8 mg mass were cut out from initial and HPT-processed blends and crimped in standard Al. pans. The DSC cell was purged with dry nitrogen during the measurements (50 mL/min). The TGA was performed from room temperature to 600 °C at 10 °C/min with a Rigaku Instrument Thermo plus TG 8120 in a nitrogen atmosphere. The oxidation induction time (OIT) was measured with a DSC 910 differential scanning calorimeter (Du Pont Instrument). OIT was determined as the time (minutes) until the onset of oxidation during heating in an oxygen environment. The average molecular weights (Mn and Mw) were determined using a Gel Permeation Chromatography (GPC) system comprising (Agilent G1379A Degasser coupled to Agilent Pump 1100 Series), two PLGel 5 μMIXED-C columns, and two different laser photometers as detectors, namely, Wyatt Optilab Rex differential refractometer and Dawn Eos (Wyatt Technology Corporation, Santa Barbara, CA, USA). ASTRA 4.90.07 software (Wyatt Technology Corp.) was used for data collection and processing. The elution was carried out using dichloromethane at a flow rate of 0.8 mL min−1 at room temperature. Transmission electron microscopy (TEM) was performed using a Tesla BS 500 electron microscope at 90 kV. Samples were prepared as thin sections approximately 60 nm thick using an ultramicrotome (PowerTome PC, Boeckeler, USA) equipped with a 35° diamond knife (Diatome, Switzerland). No staining or any other chemical treatment was applied to sections prior to observation. Scanning electron microscopy (SEM) was performed by using a JSM-5500 LV scanning electron microscope from JEOL (Tokyo, Japan). Microhardness H was determined with a micro-Vickers hardness tester. An indentation was made on the specimen by a diamond indenter through the application of a load p = 20 g. The size of the resultant indentation was measured with the help of a calibrated optical microscope, and the hardness was evaluated as the mean stress applied underneath the indenter.</p
Morphology, structure and corrosion resistance of TiO2 layers fabricated on Ti-6Al-4V alloy in deep eutectic solvents by potentiostatic anodization
No full textDataset contains raw measurement files collected during:1) dc polarization measurements,2) SEM / FIB microscopic analyses3) TEM analyses4) STEM analysesof dual-phase Ti-6Al-4V titanium alloy with oxide layers formed during anodizing process in a deep eutectic solvent (DES composed of choline dihydrogencitrate salt and oxalic acid) at 60 °C. The study showed using HR-TEM microscopy that anodic polarization forms TiO2 layers with a complex, bilayer morphology with not very numerous pores. With the increase of anodizing voltage from 10 V through 50 V to 90 V, the thickness of fabricated layers increases from 30 through 90 to 200 nm. The layer formed at intermediate voltage (50 V) is nanocrystalline and made of anatase (tetragonal TiO2). Corrosion resistance measurements showed that the anodic layers produced have distinct passive properties and provide a low current density in the anodic polarization range after 50-days of exposure in a Ringer solution.Details about file naming, related sample materials, experimental conditions, software for data processing, are described in the "readme.txt" file. For electrochemical measurements, the Notepad application is sufficient to access the ASCII data which allow to plot the graphs. Moreover, for electrochemical measurements, detailed measurement parameters and hardware details are available in each .DTA file. They can also be read directly from .DTA files using the notepad application or another simple text editor. For SEM / FIB / TEM microscopic analyses no specific software is neccessary to open the raw microphotographs.</p
Sandwiching high energy frameworks by taking advantage of π-philic molecular recognition
No full textThe deposited data was collected as part of the research project entitled: “Investigation of the effect of additives to ammonium nitrate-based explosives on their shock sensitivity". This study was funded by the National Science Centre in the frame of the Preludium Bis-2 scientific project, grant no. 2020/39/O/ST5/03293 the Polish National Agency For Academic Exchanges (NAWA) PRELUDIUM BIS 2 foreign doctoral internship programme grant no. BPN/PRE/2022/1/00043.The main thrust of the work is to use non-covalent π-π interactions between planar anions and aromatic cations to construct layered structures. The work points out that traditional materials containing polynitro or nitro groups are often characterised by thermal instability due to the lack of effective stabilising mechanisms. In response to this, the synthesis of salts in which anions (e.g. tetrazolium derivatives) and cations (e.g. 1,2,4-triazolium derivatives) alternate to form layers stabilised by π-philic interactions and a hydrogen bonding.The crystallographic structures of the obtained compounds (ISEM-1 to ISEM-6) revealed ordered layered arrangements, resembling the architecture of TATB, a benchmark stable explosive. Physicochemical property measurements were accompanied by thermal analysis (TGA/DSC), showing decomposition temperatures above 200°C and low sensitivity to impact (>30 J) and friction (>360 N).The developed methodology opens up new possibilities for designing materials that combine high performance with safety in use. Further research could focus on optimising the geometry of π-stacked systems and implementing additional non-covalent interactions to further improve properties.The dataset consists of the following files:DSC ISEM-2 - raw data from the results of thermal decomposition with a heating rate of 5 °C min−1 for sample ISEM-2. The decomposition points (onset temperature) were obtained on a differential scanning calorimeter (TA Instruments Company, Model: Q2000).HNMR ISEM-2 - raw data from from the results of 14NNMR spectrum of compound ISEM-2. Spectra were recorded using a 500 MHz (Bruker AVANCE 500) NMR spectrometer operating at 500.19 MHz.CNMR ISEM-2 - raw data from from the results of 13CNMR spectrum of compound ISEM-2. Spectra were recorded using a 500 MHz (Bruker AVANCE 500) NMR spectrometer operating at 125.78 MHz.NNMR ISEM-2 - raw data from from the results of 1HNMR spectrum of compound ISEM-2. Spectra were recorded using a 500 MHz (Bruker AVANCE 500) NMR spectrometer operating at 36.14 MHz.IS-FS - raw data from the results of friction and impact sensitivity tests. The impact and friction sensitivities were determined by using a standard BAM drop hammer and BAM friction tester.</p
Dielectric spectra of new zwitterion based ionic liquid crystals with HSO4 and MeSO3 anions
No full textThe files include dielectric spectra of new zwitterion based ionic liquid crystals with HSO4 and MeSO3 anions.Sheets show dielectric spectra of σ'(f) and M”(f) collected at various temperature condictions for: DmC10S MeSO3, DmC12 MeSO3, DmC14S MeSO3, DmC16S MeSO3, DmC10S HSO4, DmC12S HSO4, DmC14S HSO4, DmC16S HSO4.</p
Raw data for project "Synthesis of deep eutectic mixtures as potential d-electron metal ion carriers in polymer adsorption membranes"
No full textThe data was obtained as a part of a project entitled "Synthesis of deep eutectic mixtures as potential d-electron metal ion carriers in polymer adsorption membranes" no. 2024/08/X/ST4/00950 (Miniatura 8) financed by the National Science Center (Poland) (NCN). The file contains raw data and metadata related to the deep eutectic mixture and polymer adsorptive membranes:Bruker Advance 3HD 400 MHz spectrometer – spectra of 1H, 13C NMR of obtained deep eutectic mixtures recorded in a DMSO-d6, 99.8% atom %D solution,Bruker Alpha-PFT-IR device with a diamond attenuated total reflectance (ATR) accessory - FTIR-ATR spectra of obtained polymer adsorptive membranes.</p
Luminescent properties of Mn and Cr doped Al2O3 single crystalline films under excitation with synchrotron radiation
No full textExcitation with synchrotron radiation has provided a powerful means to study wide bad-gap dielectrics' intrinsic and dopant-related luminescent phenomena. In this study, the luminescent properties of Mn- and Cr- doped single crystalline films of Al2O3 (sapphire), grown using the liquid phase epitaxy method from PbO-B2O3 flux, were systematically investigated using absorption and cathodoluminescence spectra as well as the conventional and advanced photoluminescent spectroscopy under synchrotron radiation excitation. The emission and excitation spectra showed characteristic bands corresponding to Mn4+ and Cr3+ impurities as well as Pb2+ flux-related dopants and indicated the participation of these metal ions in the luminescence process. The influence of the excitation energy in the transparency region and exciton range of the Al2O3 host on the intensity and spectral shape of the emissions bands of these dopants is discussed in detail. The obtained results contribute to understanding the potential of Al2O3:Mn and Al2O3:Cr films for applications in optoelectronic devices and luminescent sensors.</p
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