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Search for "energy" in Full Text gives 1950 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

Transfer function of an asymmetric superconducting Gauss neuron

  • Fedor A. Razorenov,
  • Aleksander S. Ionin,
  • Nikita S. Shuravin,
  • Liubov N. Karelina,
  • Mikhail S. Sidel’nikov,
  • Sergey V. Egorov and
  • Vitaly V. Bol’ginov

Beilstein J. Nanotechnol. 2025, 16, 1160–1170, doi:10.3762/bjnano.16.85

Graphical Abstract
  • , prediction, pattern recognition, and image and video generation. The increasing number of tasks and the growing volume of processed information highlight the relevance of using superconducting elements, which offer the advantages of high clock frequency and energy efficiency [1][2]. Studies [3][4][5][6
  • ] describe neuromorphic elements based on superconducting interferometers that emulate the signal response of biological neurons in various real-world scenarios. In [1][7][8][9][10][11][12][13][14][15], adiabatic neuromorphic interferometers were presented, whose energy consumption can be reduced to the
  • ]. Indeed, the inductance of a superconducting film carrying an electric current consists of two components, namely, the magnetic inductance (originating from the magnetic field energy) and the kinetic inductance (originating from the kinetic energy of the superconducting electrons). Should one want to
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Published 21 Jul 2025

Crystalline and amorphous structure selectivity of ignoble high-entropy alloy nanoparticles during laser ablation in organic liquids is set by pulse duration

  • Robert Stuckert,
  • Felix Pohl,
  • Oleg Prymak,
  • Ulrich Schürmann,
  • Christoph Rehbock,
  • Lorenz Kienle and
  • Stephan Barcikowski

Beilstein J. Nanotechnol. 2025, 16, 1141–1159, doi:10.3762/bjnano.16.84

Graphical Abstract
  • in organic solvents (acetone, ethanol, acetonitrile). In a systematic experimental series using high-resolution transmission electron microscopy, scanning transmission electron microscopy with energy-dispersive X-ray spectroscopy, selected-area electron diffraction, X-ray diffraction, electron energy
  • solution; EELS; electron energy loss spectroscopy; laser processing in liquids; multicomponent alloy; STEM-EDX; selected area electron diffraction; X-ray diffraction; Introduction High-entropy alloys (HEAs), also referred to as compositionally complex solid solutions (CCSS) [1], are of great interest in
  • nanomaterials, usually consisting of single-phase solid solutions made of five or more elements, forming relatively simple face-centered cubic [6][7][8] (fcc) or body-centered cubic [9][10] (bcc) crystal structures, stabilized by the configurational part of Gibbs-free energy. It is worth noting that high
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Published 17 Jul 2025

Towards a quantitative theory for transmission X-ray microscopy

  • James G. McNally,
  • Christoph Pratsch,
  • Stephan Werner,
  • Stefan Rehbein,
  • Andrew Gibbs,
  • Jihao Wang,
  • Thomas Lunkenbein,
  • Peter Guttmann and
  • Gerd Schneider

Beilstein J. Nanotechnol. 2025, 16, 1113–1128, doi:10.3762/bjnano.16.82

Graphical Abstract
  • ; transmission X-ray microscope; Introduction Transmission X-ray microscopes (TXMs) operating in the soft and tender X-ray energy range are valuable tools for structural analysis in both biomedical and materials science research [1][2][3][4]. These microscopes yield images at a lateral resolution approaching 25
  • then propagated through a beamline about 26 m in length [24], which consists of several mirrors and a plane-grating monochromator that yields highly monochromatic light (E/ΔE ≈ 10000 for the energy of 510 eV used in the current study). This monochromator source is then re-focused and demagnified onto
  • crystalline order extended over the full particle. Fourier transform of a sub-region of this image yielded a lattice spacing for Au(111) of 0.236 nm, close to the nominal value of 0.235 nm (Supporting Information File 1, Section S13, Figure S12b). Finally, an energy-dispersive X-ray spectroscopy analysis
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Published 15 Jul 2025

Influence of ion beam current on the structural, optical, and mechanical properties of TiO2 coatings: ion beam-assisted vs conventional electron beam evaporation

  • Agata Obstarczyk and
  • Urszula Wawrzaszek

Beilstein J. Nanotechnol. 2025, 16, 1097–1112, doi:10.3762/bjnano.16.81

Graphical Abstract
  • are very high. The electron beam evaporation process uses the high kinetic energy of an electron beam to generate the thermal energy required to melt and then evaporate the source material to deposit it on the substrate [4]. Evaporation is an attractive deposition technique because of its many
  • adhesion to substrates and a densely packed structure. Also, the deposition rate is low, which affects the high residual stress of the coating [7]. In order to improve the properties of vapor-deposited coatings, it is necessary to increase the total energy of the particles reaching the substrates. In
  • practice, additional heating of the substrates, reducing the pressure in the working chamber, applying additional electrical bias to the substrates, or using ion beam assistance are used. All of these methods lead to an increase in the total energy of the nucleating particles on the substrate. Ion beam
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Published 14 Jul 2025

Single-layer graphene oxide film grown on α-Al2O3(0001) for use as an adsorbent

  • Shiro Entani,
  • Mitsunori Honda,
  • Masaru Takizawa and
  • Makoto Kohda

Beilstein J. Nanotechnol. 2025, 16, 1082–1087, doi:10.3762/bjnano.16.79

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  • Shiro Entani Mitsunori Honda Masaru Takizawa Makoto Kohda Quantum Materials and Applications Research Center, National Institutes for Quantum Science and Technology, Takasaki, Gunma 370-1292, Japan Honda’s Lab for Development of Future Clay Materials Research, Japan Atomic Energy Agency, Tokai
  • , a broad structure arose in the higher binding energy region of the intense peak. The structure is originated from the introduction of the oxygen functional groups such as hydroxy and carbonyl groups [24]. It can be reasonably considered that the introduction of the local structures in SLGO causes
  • adsorbing mechanism of the Cs atoms to the SLGO sheet, we investigated the electronic structure and chemical properties of adsorbed Cs by changing the pH level of the Cs aqueous solutions. Figure 5 shows Cs 3d XPS spectra of Cs-adsorbed SLGO under three different pH values. No energy shift was observed
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Published 10 Jul 2025

Piezoelectricity of hexagonal boron nitrides improves bone tissue generation as tested on osteoblasts

  • Sevin Adiguzel,
  • Nilay Cicek,
  • Zehra Cobandede,
  • Feray B. Misirlioglu,
  • Hulya Yilmaz and
  • Mustafa Culha

Beilstein J. Nanotechnol. 2025, 16, 1068–1081, doi:10.3762/bjnano.16.78

Graphical Abstract
  • bandgap energy [46]. Supporting Information File 1, Figure S3 (f) illustrates that the hydrodynamic size of hBNs in aqueous suspension is approximately 120 nm. The zeta potential value is −42.5 ± 1.18 mV, indicating greater negativity than −30 mV, demonstrating stability [47]. Figure 1 shows PRFM
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Published 07 Jul 2025

Soft materials nanoarchitectonics: liquid crystals, polymers, gels, biomaterials, and others

  • Katsuhiko Ariga

Beilstein J. Nanotechnol. 2025, 16, 1025–1067, doi:10.3762/bjnano.16.77

Graphical Abstract
  • also illustrate the potential applications, including organic semiconductor devices, electrochemical catalysts, thin-film sensors, solar energy generation, plastic crystal electrolytes, microactuators, smart light-responsive materials, self-repairing materials, enzyme cascade sensors, healing materials
  • as biomedical applications [15][16][17][18][19][20], but also extends to functional material systems that address issues such as energy [21][22][23][24][25] and environment [26][27][28][29][30]. The creation of such soft functional materials has been fostered alongside the advancement of science
  • ][182][183], fuel cells [184][185][186][187][188], batteries [189][190][191][192][193], supercapacitors [194][195][196][197][198], and other energy applications [199][200][201][202][203]. Furthermore, it is employed in environmental remediation [204][205][206][207][208], drug delivery [209][210][211
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Published 04 Jul 2025

Multifunctional properties of bio-poly(butylene succinate) reinforced with multiwalled carbon nanotubes

  • Volodymyr Krasinskyi,
  • Krzysztof Bajer,
  • Ludmila Dulebova,
  • Nickolas Polychronopoulos,
  • Oksana Krasinska and
  • Daniel Kaczor

Beilstein J. Nanotechnol. 2025, 16, 1014–1024, doi:10.3762/bjnano.16.76

Graphical Abstract
  • mixing and kneading elements, including backward elements, to achieve the most uniform distribution and dispersion of CNTs in the polymer matrix [27]. During extrusion, the basic process parameters (Table 5) were recorded: drive torque (M), energy consumption (W), melt temperature (Td), and melt pressure
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Published 03 Jul 2025

A calix[4]arene-based supramolecular nanoassembly targeting cancer cells and triggering the release of nitric oxide with green light

  • Cristina Parisi,
  • Loredana Ferreri,
  • Tassia J. Martins,
  • Francesca Laneri,
  • Samantha Sollima,
  • Antonina Azzolina,
  • Antonella Cusimano,
  • Nicola D’Antona,
  • Grazia M. L. Consoli and
  • Salvatore Sortino

Beilstein J. Nanotechnol. 2025, 16, 1003–1013, doi:10.3762/bjnano.16.75

Graphical Abstract
  • targeting ability combined with a photoresponsive character. The chromo-fluorogenic component can be exploited for cell tracking and as a suitable low energy light-harvesting antenna to activate photoinduced bimolecular processes with an otherwise blue-light-activatable NOPD encapsulated therein. For this
  • involving this chromophore and the encapsulated 2. As far as the mechanism of this process is concerned, both singlet–singlet and triplet–triplet energy transfers are ruled out based on the following. Based on the absorption spectra of the ABF and 2, the lowest singlet state of ABF can be estimated to be
  • several kcal·mol−1 lower than that of 2. This makes, of course, a potential singlet–singlet energy transfer highly endoergonic. In contrast, the triplet state of the ABF chromophore is well known to not be populated unless in cyclohexane [66], making any triplet–triplet energy transfer impossible
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Published 03 Jul 2025

Time-resolved probing of laser-induced nanostructuring processes in liquids

  • Maximilian Spellauge,
  • David Redka,
  • Mianzhen Mo,
  • Changyong Song,
  • Heinz Paul Huber and
  • Anton Plech

Beilstein J. Nanotechnol. 2025, 16, 968–1002, doi:10.3762/bjnano.16.74

Graphical Abstract
  • of ablation, fragmentation or colloidal fusion may look macroscopically different in each application, the underlying fundamental mechanisms are always the same cascade of laser interaction with matter, non-thermal or thermal energy deposition, phase transitions, and the subsequent structure
  • exchanging energy and material with the excited loci. LSPC commonly encompasses laser ablation in liquid (LAL), which allows for producing NPs from a surface of virtually any solid [6][7][8][9], laser fragmentation in liquid (LFL) to further reduce dimensions of particles down to few-atom clusters [10][11
  • simple handling and safe suspension of the products for further use. On the other hand, the interaction of the irradiated surfaces and NPs with the liquid forms an active interface for energy exchange, leading to extreme cooling rates of 1000 K per nanosecond, which quenches melted particles, generates
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Published 02 Jul 2025

Shape, membrane morphology, and morphodynamic response of metabolically active human mitochondria revealed by scanning ion conductance microscopy

  • Eric Lieberwirth,
  • Anja Schaeper,
  • Regina Lange,
  • Ingo Barke,
  • Simone Baltrusch and
  • Sylvia Speller

Beilstein J. Nanotechnol. 2025, 16, 951–967, doi:10.3762/bjnano.16.73

Graphical Abstract
  • Mitochondria are essential organelles in eukaryotic cells, primarily responsible for energy supply. They have an endosymbiotic origin, resulting from the incorporation of an ancestral prokaryote into another prokaryotic host approximately 1.8 billion years ago [1][2][3]. This symbiotic relationship gave rise
  • citric acid cycle, mitochondria facilitate oxidative phosphorylation, which generates the energy carrier adenosine triphosphate (ATP). Indicators of mitochondrial metabolic activity include a high membrane potential and oxygen consumption [4][5]. Recent research emphasises that mitochondria should not be
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Published 30 Jun 2025

Tendency in tip polarity changes in non-contact atomic force microscopy imaging on a fluorite surface

  • Bob Kyeyune,
  • Philipp Rahe and
  • Michael Reichling

Beilstein J. Nanotechnol. 2025, 16, 944–950, doi:10.3762/bjnano.16.72

Graphical Abstract
  • foremost tip atom may rearrange to minimize the tip surface energy in response to increasing tip–sample interaction forces. Here, we perform an experimental investigation of tip changes during NC-AFM imaging of a CaF2(111) surface with non-functionalized tips at both room temperature (RT) and low
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Published 26 Jun 2025

Synthesis of biowaste-derived carbon-dot-mediated silver nanoparticles and the evaluation of electrochemical properties for supercapacitor electrodes

  • Navya Kumari Tenkayala,
  • Chandan Kumar Maity,
  • Md Moniruzzaman and
  • Subramani Devaraju

Beilstein J. Nanotechnol. 2025, 16, 933–943, doi:10.3762/bjnano.16.71

Graphical Abstract
  • as-synthesized PG-CDs-AgNPs electrode exhibited the maximum specific capacitance of 540 F/g in a three-electrode study. The asymmetric supercapacitor (ASC) device with PG-CDs-AgNPs as the positive electrode reached the maximum specific capacitance of 200 F/g having a superior energy density of 71 W·h
  • electrodes for energy storing. Keywords: asymmetric supercapacitor; carbon dots; fluorescence emission; green approach; silver nanoparticles; Introduction The extensive usage of fossil fuels is a result from the rising demand for energy. However, the use of fossil fuels is not sufficient to attend the
  • energy demand. Therefore, a notable research focus has been given to advancements in renewable energy storage systems. Secondary batteries and supercapacitors are promising alternatives for energy storage applications [1][2]. Through the electrostatic polarization of electrolyte solutions, supercapacitor
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Published 24 Jun 2025

Structural and magnetic properties of microwave-synthesized reduced graphene oxide/VO2/Fe2O3 nanocomposite

  • Sumanta Sahoo,
  • Ankur Sood and
  • Sung Soo Han

Beilstein J. Nanotechnol. 2025, 16, 921–932, doi:10.3762/bjnano.16.70

Graphical Abstract
  • , including their derivatives, are broadly explored for miscellaneous applications, such as energy storage/conversion, EMI shielding, biosensing, optoelectronics, robotics, flexible electronics, paint industries, textile industries, biomedical devices [5][6][7]. To be specific, the innovation of graphene
  • shown in Table 1. Most of the reported synthetic processes are composed of multiple steps, are time-consuming, and utilize higher temperatures. Compared to these approaches, the adopted synthetic route has the advantages of less time and energy consumption. Moreover, the solid-state MW irradiation was
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Published 20 Jun 2025

Focused ion beam-induced platinum deposition with a low-temperature cesium ion source

  • Thomas Henning Loeber,
  • Bert Laegel,
  • Meltem Sezen,
  • Feray Bakan Misirlioglu,
  • Edgar J. D. Vredenbregt and
  • Yang Li

Beilstein J. Nanotechnol. 2025, 16, 910–920, doi:10.3762/bjnano.16.69

Graphical Abstract
  • energy-dispersive X-ray spectroscopy (EDS), lamellas for transmission electron microscopy (TEM) were prepared. Experimental The Ga+ FIB is a ThermoFisher Helios NanoLab 650 and uses a gas injection system (GIS). ZeroK NanoTech Corporation has created commercially available Cs+ FIB systems based on
  • compositional data for C, O, Pt, and Cs with standard deviations of the average as uncertainties. From the data shown in Figure 6, it follows that the Pt deposits created at 8 kV and 10 pA Cs+ result in an atomic abundance ratio of C/O/Pt/Cs = 74:2.5:23:1. Compared to Rb+ FIBID-Pt of similar beam energy
  • shows that the average grain diameter grows from 1.9 to 5.8 nm when the beam energy increases from 2 to 16 kV. The increase in grain size with beam energy is visually obvious from the bright-field images shown in Figure 7. Previously, De Teresa et al. reported a 3.2 ± 0.8 nm grain diameter for 5 kV Ga
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Published 16 Jun 2025

Characterization of ion track-etched conical nanopores in thermal and PECVD SiO2 using small angle X-ray scattering

  • Shankar Dutt,
  • Rudradeep Chakraborty,
  • Christian Notthoff,
  • Pablo Mota-Santiago,
  • Christina Trautmann and
  • Patrick Kluth

Beilstein J. Nanotechnol. 2025, 16, 899–909, doi:10.3762/bjnano.16.68

Graphical Abstract
  • attracted significant attention in the past decade because of their broad applicability in a variety of areas including biosensing, micro/ultrafiltration, desalination, ion and molecular separation, dialysis, battery technologies, blue energy generation, and nanofluidics [1][2][3][4][5][6][7][8][9][10][11
  • , and the type and energy of the ions used [13][29][40]. Track-etch technology has been used for the commercial fabrication of cylindrical nanopores in polymers for filtration applications [41][42][43][44][45][46]. Only recently we have adapted this technology to generate conical nanopores in silicon
  • typically differ in morphology, density, and stoichiometry compared to thermally grown SiO2. The electronic energy loss (Se) in the thermal and PECVD SiO2 layers was calculated using the SRIM2008 code [49]. The average Se values for thermal SiO2 for 1.6 GeV, 185 MeV, and 89 MeV Au irradiation are 21.1, 16.6
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Published 12 Jun 2025

Heat-induced transformation of nickel-coated polycrystalline diamond film studied in situ by XPS and NEXAFS

  • Olga V. Sedelnikova,
  • Yuliya V. Fedoseeva,
  • Dmitriy V. Gorodetskiy,
  • Yuri N. Palyanov,
  • Elena V. Shlyakhova,
  • Eugene A. Maksimovskiy,
  • Anna A. Makarova,
  • Lyubov G. Bulusheva and
  • Aleksandr V. Okotrub

Beilstein J. Nanotechnol. 2025, 16, 887–898, doi:10.3762/bjnano.16.67

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  • to sp2-hybridized carbon atoms. The relative area of this sp2-peak is 3% in the spectrum measured at 830 eV, and becomes significantly larger (16%) as the photon excitation energy decreases to 330 eV. The rather small amount of sp2 carbon in the 2 nm thick surface layer indicates that the temperature
  • Ni-coated NCD films, a disordered carbon was found to form on the nickel surface, which then partially transformed into a graphitic phase at higher temperatures [23]. Moreover, the spectra of the annealed Ni-PCD film demonstrate an additional peak at a low binding energy of 283.3 eV corresponding to
  • spectrum was fitted by three doublets, related to the spin–orbit splitting into Ni 3p3/2 and Ni 3p1/2 components, separated by 1.6 eV (Figure 3a). The most intense doublet with the Ni 3p3/2 component at 66.1 eV is attributed to metallic nickel [46]. The high-energy doublet with the Ni 3p3/2 component at
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Published 12 Jun 2025

Ar+ implantation-induced tailoring of RF-sputtered ZnO films: structural, morphological, and optical properties

  • Manu Bura,
  • Divya Gupta,
  • Arun Kumar and
  • Sanjeev Aggarwal

Beilstein J. Nanotechnol. 2025, 16, 872–886, doi:10.3762/bjnano.16.66

Graphical Abstract
  • , Urbach energy, and optical bandgap. The low reflectance values of implanted films assure their suitability as transparent windows and anti-reflective coating in various optoelectronic devices. Keywords: AFM; diffuse reflectance; GXRD; polycrystalline; ZnO films; Introduction Zinc oxide has emerged as a
  • promising material for device fabrication in different fields, namely, spintronics, nanoelectronics, and photonics [1][2]. It possesses a wide bandgap of 3.37 eV [3] and has a large exciton binding energy of about 60 meV [4], which assures the stability of ZnO film-based devices such as liquid crystal
  • control material properties by inducing damage and introducing defects in the host matrix in a controlled manner [8]. It offers the advantage of controlling the amount of energy transferred to the host system by selecting the desired ion energy, mass, and fluence [9]. Different types of lattice vacancies
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Published 11 Jun 2025

Insights into the electronic and atomic structures of cerium oxide-based ultrathin films and nanostructures using high-brilliance light sources

  • Paola Luches and
  • Federico Boscherini

Beilstein J. Nanotechnol. 2025, 16, 860–871, doi:10.3762/bjnano.16.65

Graphical Abstract
  • -scale information about material behavior under different conditions. This thorough understanding can be leveraged to optimize materials for various applications, including energy storage, catalysis, and electronics. This review focuses on cerium oxide, an important material for catalytic and energy
  • applications, examining the application of high-brilliance light sources on model systems such as supported thin films and epitaxial nanostructures. We review selected studies exploiting the high energy resolution and sensitivity of synchrotron radiation-based X-ray photoelectron spectroscopy and X-ray
  • ; Introduction Transition metal oxides in the form of thin films or nanostructures find extensive use in sustainable energy technologies [1][2]. They serve as active materials or supports for catalysts for various chemical reactions, essential to energy conversion, sensing, and environmental remediation [3][4
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Published 10 Jun 2025

Synchrotron X-ray photoelectron spectroscopy study of sodium adsorption on vertically arranged MoS2 layers coated with pyrolytic carbon

  • Alexander V. Okotrub,
  • Anastasiya D. Fedorenko,
  • Anna A. Makarova,
  • Veronica S. Sulyaeva,
  • Yuliya V. Fedoseeva and
  • Lyubov G. Bulusheva

Beilstein J. Nanotechnol. 2025, 16, 847–859, doi:10.3762/bjnano.16.64

Graphical Abstract
  • film, and annealing of the sodiated sample restores its structure. The obtained results demonstrate the important role of the graphitic coating in the development of viable MoS2-based electrodes for energy storage systems. Keywords: graphitic coating; molybdenum disulfide film; Na adsorption
  • capacity and cycle life of SIBs. Molybdenum disulfide (MoS2) has a layered structure and a high theoretical capacity of 669 mAh·g−1, so it is considered as a promising anode material for SIBs [1][2]. The large sodium ion can diffuse with a low energy barrier between the S−Mo−S layers due to the interlayer
  • resulting in low electrical conductivity and huge volume expansion of the anode material limits the application of MoS2 anodes in high-energy SIBs. Thus, the main issues that need to be addressed for SIBs with MoS2 anodes are long-term stability and high rate performance. Conducting graphitic-like carbon
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Published 10 Jun 2025

Facile one-step radio frequency magnetron sputtering of Ni/NiO on stainless steel for an efficient electrode for hydrogen evolution reaction

  • Ha Huu Do,
  • Khac Binh Nguyen,
  • Phuong N. Nguyen and
  • Hoai Phuong Pham

Beilstein J. Nanotechnol. 2025, 16, 837–846, doi:10.3762/bjnano.16.63

Graphical Abstract
  • electrocatalysts have been well accepted as potential candidates to replace Pt-based electrocatalysts for HER because of their suitable Gibbs free hydrogen adsorption energy, good intrinsic catalytic properties, and high stability. However, solution-based synthetic approaches can be highly harmful to human beings
  • increasing consumption of fossil fuels, causing CO2 emissions and resulting in climate change [1]. Hydropower can be harnessed to provide sustainable energy for future generations because there are no harmful emissions with only water vapor as a byproduct [2][3][4]. Also, hydropower offers better energy
  • energy of hydrogen/water adsorption. Also, inexpensiveness and high durability are positive aspects regarding large-scale applications. For instance, Oshchepkov and coworkers revealed that the efficacy of NiO in cleaving H–OH bonds accelerated the formation of hydrogen on a Ni metal catalyst [17]. Yan
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Published 06 Jun 2025

Synthesis and magnetic transitions of rare-earth-free Fe–Mn–Ni–Si-based compositionally complex alloys at bulk and nanoscale

  • Shabbir Tahir,
  • Tatiana Smoliarova,
  • Carlos Doñate-Buendía,
  • Michael Farle,
  • Natalia Shkodich and
  • Bilal Gökce

Beilstein J. Nanotechnol. 2025, 16, 823–836, doi:10.3762/bjnano.16.62

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  • field, exhibit an adiabatic temperature change, enabling energy-efficient and environmentally friendly refrigeration [2]. These solid-state cooling systems are being developed as alternatives to conventional gas-based refrigeration and are especially advantageous for applications requiring tailored
  • combinations that control the configurational entropy of mixing, phase, and free energy of the material. Consequently, the magnetic phase transition of CCAs can be tuned by altering their chemical composition because of the different elemental interactions [17]. A significant advantage of using CCAs is their
  • because they exhibit remarkable properties due to the interplay between their compositional complexity and nanoscale effects, such as a high surface-to-volume ratio and quantum confinement. These unique characteristics make CCA nanoparticles (NPs) highly suitable for catalysis [26][27], energy storage [28
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Published 05 Jun 2025

Supramolecular hydration structure of graphene-based hydrogels: density functional theory, green chemistry and interface application

  • Hon Nhien Le,
  • Duy Khanh Nguyen,
  • Minh Triet Dang,
  • Huyen Trinh Nguyen,
  • Thi Bang Tam Dao,
  • Trung Do Nguyen,
  • Chi Nhan Ha Thuc and
  • Van Hieu Le

Beilstein J. Nanotechnol. 2025, 16, 806–822, doi:10.3762/bjnano.16.61

Graphical Abstract
  • bonding, two graphene sheets in face-to-face geometry have a large interaction surface area to multiply the van der Waals force per unit area, resulting in strong binding energy of total attraction forces. The restacking of graphene-based nanosheets, including pristine graphene, graphene oxide (GO), and
  • theory modeling (DFT) and dispersion energy correction functional (DFT-D3). The theoretical work aimed to elucidate the relationship between water intercalation and intersheet binding energy in quantum mechanical level. The computational calculations quantified intersheet distance, van der Waals force
  • , bandgap energy, and formation energy of the molecular system of bilayer graphene intercalated with a water layer. In the experimental aspect, green chemistry methods were applied for synthesizing GO nanosheets, rice-husk-derived silica gel (SG), nanosilica–zinc hydroxide nanoparticles (SG-ZH), and
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Published 04 Jun 2025

Morphology and properties of pyrite nanoparticles obtained by pulsed laser ablation in liquid and thin films for photodetection

  • Akshana Parameswaran Sreekala,
  • Bindu Krishnan,
  • Rene Fabian Cienfuegos Pelaes,
  • David Avellaneda Avellaneda,
  • Josué Amílcar Aguilar-Martínez and
  • Sadasivan Shaji

Beilstein J. Nanotechnol. 2025, 16, 785–805, doi:10.3762/bjnano.16.60

Graphical Abstract
  • -system marcasite crystal structure. Due to its low structural symmetry, marcasite FeS2 has a bandgap of only 0.34 eV and, as a result, it is not appropriate for use, particularly with solar energy absorption materials. Hence, the pyrite structure serves as a foundation for almost all studies of systems
  • films. The conventional methods reported for the synthesis of pyrite NPs include chemical methods using stabilizing agents [4], high-energy mechanical ball milling [6][7], colloidal pyrite by wet solution/phased chemical approaches [8][9], and hot injection [10][11]. In this study, PLAL was employed to
  • number of benefits, including small size, light weight, affordable price, low power consumption, high photoresponsivity, quick response, and most importantly, it independently operates without an external power supply and relies on the built-in potential, which helps to save energy [33]. Moreover, self
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Published 03 Jun 2025

Changes of structural, magnetic and spectroscopic properties of microencapsulated iron sucrose nanoparticles in saline

  • Sabina Lewińska,
  • Pavlo Aleshkevych,
  • Roman Minikayev,
  • Anna Bajorek,
  • Mateusz Dulski,
  • Krystian Prusik,
  • Tomasz Wojciechowski and
  • Anna Ślawska-Waniewska

Beilstein J. Nanotechnol. 2025, 16, 762–784, doi:10.3762/bjnano.16.59

Graphical Abstract
  • , the question of the iron phase present in the FS0 sample appears to be unresolved based on the TEM results; however, the presence of the iron oxyhydroxide is highly probable. The energy-dispersive X-ray spectroscopy (EDS) spectrum (Figure 3f) of the FS0 sample collected from the area visible in Figure
  • the gathered data plotted as lnτ(ΤΜΑΧ−1) dependence, the below relaxation model was fitted [32]: where τ = f−1, kB is the Boltzmann constant, τ0 is the characteristic relaxation time, and EA is the activation energy of a nanoparticle. The fit gave the value τ0 ≈ 6.8 × 10−12 s, which is in the
  • core level lines there is no trace of Fe2+ ions recognized in the Raman studies of Fe3O4, as its binding energy is substantially lower than those registered here [87][92][93]. It should be stressed that the Fe 2p spectra and the results of their deconvolution obtained in this study are extremely
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Published 02 Jun 2025
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