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Search for "EDX" in Full Text gives 283 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

Facile synthesis of Fe-based metal–organic frameworks from Fe2O3 nanoparticles and their application for CO2/N2 separation

  • Van Nhieu Le,
  • Hoai Duc Tran,
  • Minh Tien Nguyen,
  • Hai Bang Truong,
  • Toan Minh Pham and
  • Jinsoo Kim

Beilstein J. Nanotechnol. 2024, 15, 897–908, doi:10.3762/bjnano.15.74

Graphical Abstract
  • –Freundlich model (Table S1). CO2 uptake capacity on various adsorbents at 1 bar (Table S2). CO2 isotherms at several different temperature on M-100(Fe)@Fe2O3#1.80 sample (Figure S1). EDX mapping of elemental Fe and C on the M-100Fe@Fe2O3#1.80 sample (Figure S2). Supporting Information File 4: Additional
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Published 19 Jul 2024

Water-assisted purification during electron beam-induced deposition of platinum and gold

  • Cristiano Glessi,
  • Fabian A. Polman and
  • Cornelis W. Hagen

Beilstein J. Nanotechnol. 2024, 15, 884–896, doi:10.3762/bjnano.15.73

Graphical Abstract
  • subsequently sonicated for 2 min in acetone and for 2 min in isopropyl alcohol. All depositions were performed with both GIS nozzles inserted. Deposition, imaging, and EDX analysis were performed in immersion mode at a working distance of 5 mm. Deposition conditions In general, the main parameters that control
  • –2.70 nA. In addition, a longer deposition experiment was performed for better EDX quantification at 0.54 nA (1a). Additional experiments include a Pt-only deposit for reference (1f) and a sample prepared for TEM analysis (1g). Except for 1f, all deposits were obtained at a deposition pressure of (4.6
  • precursor only (2a–2f). Also, a line pattern was deposited and analysed (2g). EDX EDX measurements were performed in the same instrument using an Oxford Instruments X-MAX 80 detector. The working distance was kept at 5 mm to have the optimum EDX signal. All spectra were analysed using the Oxford Instruments
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Published 18 Jul 2024

Electrospun polysuccinimide scaffolds containing different salts as potential wound dressing material

  • Veronika Pálos,
  • Krisztina S. Nagy,
  • Rita Pázmány,
  • Krisztina Juriga-Tóth,
  • Bálint Budavári,
  • Judit Domokos,
  • Dóra Szabó,
  • Ákos Zsembery and
  • Angela Jedlovszky-Hajdu

Beilstein J. Nanotechnol. 2024, 15, 781–796, doi:10.3762/bjnano.15.65

Graphical Abstract
  • FTIR analysis, we used an energy-dispersive X-ray spectroscopy (EDX) detector during the SEM measurements to show the presence of salts in the fibers. The EDX spectra were taken at a voltage of 15 kV. Mechanical properties A mechanical testing machine (4952, Instron, USA) and the associated software
  • of the salts was difficult to detect at this concentration, elemental analysis was performed with an EDX detector during the SEM experiments. In Supporting Information File 1, Figure S1, it can be seen that, in both cases, Zn and Sr appeared inside the fibers. The presence of the salts was
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Published 02 Jul 2024

Effect of repeating hydrothermal growth processes and rapid thermal annealing on CuO thin film properties

  • Monika Ozga,
  • Eunika Zielony,
  • Aleksandra Wierzbicka,
  • Anna Wolska,
  • Marcin Klepka,
  • Marek Godlewski,
  • Bogdan J. Kowalski and
  • Bartłomiej S. Witkowski

Beilstein J. Nanotechnol. 2024, 15, 743–754, doi:10.3762/bjnano.15.62

Graphical Abstract
  • characterized using an analytical scanning electron microscope (SEM) Hitachi SU-70 with the X-ray microanalysis system (EDX) enabling composition analysis (Thermo Fisher Pathfinder system with a silicon drift detector). Additionally, in the study, a scanning probe microscope (Dimension Icon, Bruker) was used
  • reduced carbon content, were achieved by annealing samples at 450 °C for 5 min in O2/N2 (1:1) atmosphere. Table 1 provides a summary of the average thicknesses and elemental content of the CuO films. Notably, EDX results demonstrate that the newly developed HT+RTA approach significantly reduces the carbon
  • content in the CuO films. The chemical composition of such thin films determined using EDX is only an approximation. However, the obtained results demonstrate a clear trend of decreasing carbon content in the material with successive HT+RTA cycles. To validate those findings, additional XPS analyses were
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Published 24 Jun 2024

Simultaneous electrochemical determination of uric acid and hypoxanthine at a TiO2/graphene quantum dot-modified electrode

  • Vu Ngoc Hoang,
  • Dang Thi Ngoc Hoa,
  • Nguyen Quang Man,
  • Le Vu Truong Son,
  • Le Van Thanh Son,
  • Vo Thang Nguyen,
  • Le Thi Hong Phong,
  • Ly Hoang Diem,
  • Kieu Chan Ly,
  • Ho Sy Thang and
  • Dinh Quang Khieu

Beilstein J. Nanotechnol. 2024, 15, 719–732, doi:10.3762/bjnano.15.60

Graphical Abstract
  • Figure 3d were identified by HRTEM with an interplanar distance of (101) planes of 0.251 nm, which has also been revealed by XRD of TiO2 in anatase form. To further determine the composition of the prepared TiO2/GQDs composites, EDX mapping was used (Figure 4). The obtained results reveal that TiO2/GQDs
  • . HRTEM images of (a) TiO2, (b) GQDs, (c) (1:4)TiO2/GQDs, and (d) of (1:4)TiO2/GQDs with high magnification. EDX mapping of (1:4)TiO2/GQDs. (a) CV curves at different electrodes in a solution (0.05 M BR buffer, pH 4) containing CURI = CHYP = 25 µM at a potential scan rate v = 0.1 V·s−1. (b) Oxidation peak
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Published 20 Jun 2024

Gold nanomakura: nanoarchitectonics and their photothermal response in association with carrageenan hydrogels

  • Nabojit Das,
  • Vikas,
  • Akash Kumar,
  • Sanjeev Soni and
  • Raja Gopal Rayavarapu

Beilstein J. Nanotechnol. 2024, 15, 678–693, doi:10.3762/bjnano.15.56

Graphical Abstract
  • scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM/EDX) of the powdered form of AuNM, as shown in Supporting Information File 1, Figure S4. Growth mechanism in AuNMs during seed-mediated synthesis Seed-mediated synthesis approach has been adopted in the present work which is quite
  • diffractogram (Figure 5b) also confirmed the preferred longitudinal growth towards the {111} facet. The XRD results as shown in Figure 5b along with SEM/EDX results (Supporting Information File 1, Figure S4) confirmed that the AuNMs were made of gold. The formation of bilayer assembly of surfactants was
  • . The sample was prepared by loading it on mica coverslips which was subsequently fixed onto glass slides and air dried for an hour before the measurements. The EDX measurements were performed using a scanning electron microscope (Quanta 450 FEG, FEI, The Netherlands). The crystalline structure of gold
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Published 07 Jun 2024

Aero-ZnS prepared by physical vapor transport on three-dimensional networks of sacrificial ZnO microtetrapods

  • Veaceslav Ursaki,
  • Tudor Braniste,
  • Victor Zalamai,
  • Emil Rusu,
  • Vladimir Ciobanu,
  • Vadim Morari,
  • Daniel Podgornii,
  • Pier Carlo Ricci,
  • Rainer Adelung and
  • Ion Tiginyanu

Beilstein J. Nanotechnol. 2024, 15, 490–499, doi:10.3762/bjnano.15.44

Graphical Abstract
  • 10 × 10 mm2 to prepare 2 mm thick sample tablets. In order to increase the mechanical stability, the tablets with a density of 0.5 g/cm3 were annealed at 1000 °C for 1 h in air. Morphology analysis was carried out with a VEGA TESCAN 5130 SEM instrument equipped with an EDX detector from Oxford
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Published 02 May 2024

Photocatalytic degradation of methylene blue under visible light by cobalt ferrite nanoparticles/graphene quantum dots

  • Vo Chau Ngoc Anh,
  • Le Thi Thanh Nhi,
  • Le Thi Kim Dung,
  • Dang Thi Ngoc Hoa,
  • Nguyen Truong Son,
  • Nguyen Thi Thao Uyen,
  • Nguyen Ngoc Uyen Thu,
  • Le Van Thanh Son,
  • Le Trung Hieu,
  • Tran Ngoc Tuyen and
  • Dinh Quang Khieu

Beilstein J. Nanotechnol. 2024, 15, 475–489, doi:10.3762/bjnano.15.43

Graphical Abstract
  • Tristar-3030 system (Micromeritics, USA). The magnetic properties were measured on a Micro Sense vibrating-sample magnetometer (VSM) at room temperature. Scanning electron microscopy (SEM) observations and energy-dispersive X-ray elemental mapping (EDX mapping) were carried out on a Hitachi S-4800 FESEM
  • nanoparticles of around 9.2 nm are obvious on the GQDs. Such a good interfacial contact between CF and GQDs is favourable for the separation of the photogenerated charge carriers in the CF/GQDs. The elemental distribution of CF/GQDs was studied by EDX mapping. The elements Fe, Co, O, and C are present, as
  • curves of CF/GQDs-200. SEM images of (a) CF/GQD-140, (b) CF/GQD-180, and (c) CF/GQD-200; TEM observations and corresponding particle size distribution of (d) CF and (e) CF/GQDs-200. EDX-mapping of CF/GQDs-200. (a) Electron microscopy image, (b) EDX spectrum, (c) carbon mapping, (d) oxygen mapping, (e
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Published 29 Apr 2024

TEM sample preparation of lithographically patterned permalloy nanostructures on silicon nitride membranes

  • Joshua Williams,
  • Michael I. Faley,
  • Joseph Vimal Vas,
  • Peng-Han Lu and
  • Rafal E. Dunin-Borkowski

Beilstein J. Nanotechnol. 2024, 15, 1–12, doi:10.3762/bjnano.15.1

Graphical Abstract
  • Lorentz microscopy and electron holography, along with simultaneous structural and chemical characterization techniques such as electron diffraction, 4D STEM, and energy-dispersive X-ray (EDX) and electron energy loss spectroscopy (EELS), enable a correlative characterization to investigate magnetic
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Published 02 Jan 2024

A combined gas-phase dissociative ionization, dissociative electron attachment and deposition study on the potential FEBID precursor [Au(CH3)2Cl]2

  • Elif Bilgilisoy,
  • Ali Kamali,
  • Thomas Xaver Gentner,
  • Gerd Ballmann,
  • Sjoerd Harder,
  • Hans-Peter Steinrück,
  • Hubertus Marbach and
  • Oddur Ingólfsson

Beilstein J. Nanotechnol. 2023, 14, 1178–1199, doi:10.3762/bjnano.14.98

Graphical Abstract
  • precursor (i.e., [Au(CH3)2Cl]2) was used to create FEBID deposits on a SiO2 substrate by using 5 keV and 0.1/0.4 nA in an HV atmosphere [33]. The composition of the structures was checked via energy dispersion X-ray (EDX) mapping and reported to be 29–41 atom % Au, 2–6 atom % Cl, and 53–68 atom % C. The SEM
  • , is that this study was carried out in UHV with a higher electron beam current of 1.5 nA. However, it should be mentioned that the AES used here is surface sensitive as compared to EDX, which is bulk sensitive. As the synthesis and purification routes in both HV and the current UHV studies are
  • alternative explanation may lie in the usage of different characterization tools (i.e., EDX and AES). From both the UHV and HV FEBID results, one can conclude that the Cl ligands are completely removed and desorbed under the impact of the electron beam. The ease of Cl ligand desorption during electron beam
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Published 06 Dec 2023

Isolation of cubic Si3P4 in the form of nanocrystals

  • Polina K. Nikiforova,
  • Sergei S. Bubenov,
  • Vadim B. Platonov,
  • Andrey S. Kumskov,
  • Nikolay N. Kononov,
  • Tatyana A. Kuznetsova and
  • Sergey G. Dorofeev

Beilstein J. Nanotechnol. 2023, 14, 971–979, doi:10.3762/bjnano.14.80

Graphical Abstract
  • nanoparticles with a defective zinc blende structure under mild conditions through thermal annealing of hydrogenated silicon nanoparticles with red phosphorus. The synthesized Si3P4 nanoparticles were analyzed using FTIR, XRD, electron diffraction, EDX, TEM, Raman spectroscopy, X-ray fluorescence spectrometry
  • , the less noticeable (400), (331), (422) and (511) signals were observed). Amorphous material is present in the sample, which is most noticeable as a ca. 2 nm layer on the surface of the NPs (Figure 7a). Energy-dispersive X-ray (EDX) elemental maps (Figure 7c,d) for Si Kα and P Kα do not show any
  • Kα map tends to outline the shape of the NPs, confirming surface hydrolysis and oxidation of the material in air during storage. When the EDX spectra (Supporting Information File 1, Figure S1) were normalized to the intensity of the Si Kα line, it was observed that the growth in the relative
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Published 26 Sep 2023

Silver-based SERS substrates fabricated using a 3D printed microfluidic device

  • Phommachith Sonexai,
  • Minh Van Nguyen,
  • Bui The Huy and
  • Yong-Ill Lee

Beilstein J. Nanotechnol. 2023, 14, 793–803, doi:10.3762/bjnano.14.65

Graphical Abstract
  • ; optimization of droplet generation; synthesis of silver nanoparticles in the droplet-based microfluidic device; FESEM images and EDX spectra of the SERS substrate; SEM images of the SERS substrate with RhB; and calculation of the enhancement factors for RhB and MLM. Supporting Information File 34: Additional
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Published 21 Jul 2023

Control of morphology and crystallinity of CNTs in flame synthesis with one-dimensional reaction zone

  • Muhammad Hilmi Ibrahim,
  • Norikhwan Hamzah,
  • Mohd Zamri Mohd Yusop,
  • Ni Luh Wulan Septiani and
  • Mohd Fairus Mohd Yasin

Beilstein J. Nanotechnol. 2023, 14, 741–750, doi:10.3762/bjnano.14.61

Graphical Abstract
  • observed, revealing the agglomeration and sintering of particles during high-temperature growth in the flame. The energy dispersive X-ray (EDX) analysis results in Table 1 indicate a high fraction of nickel. A previous study showed that nickel particles of 5 nm and above can be reactive towards CH4, which
  • by field-emission scanning electron microscopy (FESEM, Zeiss Crossbeam 340) coupled with energy-dispersive X-ray analysis (EDX) for morphology and elemental analysis. Raman spectroscopy (HORIBA XploRA PLUS, 532 nm) was done to analyze the signature spectra of the grown CNTs. Line-of-sight images of
  • with an accuracy of 1 mm. Schematic diagram of the premixed flame synthesis setup with quartz tube and traversing arm. The one-dimensional flame is achieved by the utilization of sintered metal at the outlet of the burner. Average elemental composition of CNTs on nickel wire measured with EDX. Funding
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Published 21 Jun 2023

A graphene quantum dots–glassy carbon electrode-based electrochemical sensor for monitoring malathion

  • Sanju Tanwar,
  • Aditi Sharma and
  • Dhirendra Mathur

Beilstein J. Nanotechnol. 2023, 14, 701–710, doi:10.3762/bjnano.14.56

Graphical Abstract
  • synthesized GQDs using the Debye–Scherrer formula, D = 0.9λ/(β·cos θ), where D is the average crystallite size of the synthesized GQDs, λ is the X-ray wavelength, θ is the Bragg diffraction angle, and β is the FWHM. The elemental analysis of GQDs from EDX measurements is shown in Figure 4b. The EDX spectrum
  • distribution along with log-normal fit, (c) HRTEM image, and (d) AFM image of GQDs. (a) XRD pattern and (b) EDX spectra (inset showing weight and atomic percent of carbon and oxygen) of GQDs. (a) FTIR spectrum and (b) Raman spectrum of GQDs. EIS measurement of 0.1 M KCl containing 0.05 M [Fe(CN)6]3−/4− at the
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Published 09 Jun 2023

Evaluation of electrosynthesized reduced graphene oxide–Ni/Fe/Co-based (oxy)hydroxide catalysts towards the oxygen evolution reaction

  • Karolina Cysewska,
  • Marcin Łapiński,
  • Marcin Zając,
  • Jakub Karczewski,
  • Piotr Jasiński and
  • Sebastian Molin

Beilstein J. Nanotechnol. 2023, 14, 420–433, doi:10.3762/bjnano.14.34

Graphical Abstract
  • magnifications of the morphology of NiFe and CoNiFe after GO addition are presented in Figure S1 and S2, respectively, in Supporting Information File 1. Figure 2 presents the energy-dispersive X-ray (EDX) maps with corresponding SEM images of the catalysts. The analysis confirms the presence of the following
  • , additional EDX graphs confirming the presence of this element in the catalyst structure has been provided in Supporting Information File 1 (Figure S3). The EDX maps show that then deposition of nickel, iron, and cobalt species is preferable on the surface around the graphene oxide flake. The deposited GO
  • ). Characterizations The morphology and structure of the catalysts were characterized using a scanning electron microscope (FEI QUANTA FEG 250) with an energy-dispersive X-ray (EDX) sensor. X-ray absorption spectroscopy (XAS) was performed at the 04BM beamline at the National Synchrotron Radiation Centre SOLARIS [41
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Published 29 Mar 2023

A novel approach to pulsed laser deposition of platinum catalyst on carbon particles for use in polymer electrolyte membrane fuel cells

  • Bogusław Budner,
  • Wojciech Tokarz,
  • Sławomir Dyjak,
  • Andrzej Czerwiński,
  • Bartosz Bartosewicz and
  • Bartłomiej Jankiewicz

Beilstein J. Nanotechnol. 2023, 14, 190–204, doi:10.3762/bjnano.14.19

Graphical Abstract
  • , morphology, and chemical composition of the fabricated catalysts were investigated using TEM, SEM, EDX, XPS, and Raman spectroscopy. Electrochemical measurements determined the performance of the fabricated catalysts. Results and Discussion Synthesis of a highly graphitized carbon material The synthesis of
  • was conducted with a number of laser pulses varying between 10000 and 60000 to investigate the influence of the amount of deposited platinum on the size of the formed PtNPs and their distribution on carbon supports (Table 1). The results of the TEM and EDX measurements are shown in Figure 3. Based on
  • . The most important observation from the TEM analysis is that the PLD method allows for the deposition of PtNPs with even smaller dimensions than the size of PtNPs in the reference catalyst and with a denser distribution. EDX images taken with a spatial resolution of 160 pm confirm the presence of
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Published 02 Feb 2023

Combining physical vapor deposition structuration with dealloying for the creation of a highly efficient SERS platform

  • Adrien Chauvin,
  • Walter Puglisi,
  • Damien Thiry,
  • Cristina Satriano,
  • Rony Snyders and
  • Carla Bittencourt

Beilstein J. Nanotechnol. 2023, 14, 83–94, doi:10.3762/bjnano.14.10

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  • to the alloy thin film. Three different silver compositions were selected, namely 18, 30, and 36 atom %, and characterized by SEM/energy-dispersive X-ray spectroscopy (EDX). Figure 1 displays the SEM micrograph of the as-deposited thin films. The thin films exhibit a columnar morphology (see the
  • (Figure 2d and Figure 2h). The EDX analysis of the samples dealloyed in HCl confirms the hypothesis related to the kinetic of dealloying (Figure 4a). In Figure 4a it can be seen that the dealloying kinetics is faster for a higher amount of silver in the initial film with a faster decrease of aluminum
  • − ions [47]. Figure 7b displays the content of aluminum residue in samples after dealloying probed by EDX. Two different behaviors can be observed: for the HCl medium, the aluminum residue content decreases when the initial silver content is increased whereas for H3PO4 and NaOH, no change in the aluminum
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Published 11 Jan 2023

A TiO2@MWCNTs nanocomposite photoanode for solar-driven water splitting

  • Anh Quynh Huu Le,
  • Ngoc Nhu Thi Nguyen,
  • Hai Duy Tran,
  • Van-Huy Nguyen and
  • Le-Hai Tran

Beilstein J. Nanotechnol. 2022, 13, 1520–1530, doi:10.3762/bjnano.13.125

Graphical Abstract
  • the photoelectrochemical activity in aqueous environment [18][19][20]. Figure 4 shows the EDX spectra of MWCNTs and the TiO2@MWCNTs nanocomposite. The EDX spectrum for TiO2@MWCNTs confirms the presence of Ti, which accounts for 28.76 wt %. Small amounts of Fe, Al, and Si exists in as-synthesized
  • performance of the TiO2@MWCNTs electrode for water splitting. Schematic of the photoelectrochemical water splitting experimental apparatus. SEM images of (a) MWCNTs, (b) TiO2, and (c) the TiO2@MWCNTs nanocomposite. TEM images of (a) MWCNTs, (b) TiO2, and (c) the TiO2@MWCNTs nanocomposite. EDX spectra of
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Published 14 Dec 2022

In search of cytotoxic selectivity on cancer cells with biogenically synthesized Ag/AgCl nanoparticles

  • Mitzi J. Ramírez-Hernández,
  • Mario Valera-Zaragoza,
  • Omar Viñas-Bravo,
  • Ariana A. Huerta-Heredia,
  • Miguel A. Peña-Rico,
  • Erick A. Juarez-Arellano,
  • David Paniagua-Vega,
  • Eduardo Ramírez-Vargas and
  • Saúl Sánchez-Valdes

Beilstein J. Nanotechnol. 2022, 13, 1505–1519, doi:10.3762/bjnano.13.124

Graphical Abstract
  • -dispersive X-ray spectroscopy (EDX), and transmission electron microscopy (TEM) techniques were used to characterize nanoparticle development. The breast cancer cell line MCF-7 was used as a test model to study the cytotoxic behavior of Ag/AgCl nanoparticles and, as a counterpart, the nanoparticles were also
  • crystallites at 100 °C. On the other hand, the different contents of Ag and AgCl depend on the presence of chloride ions in the extract and their ability to form AgCl instead of metallic Ag. The qualitative and quantitative energy-dispersive X-ray (EDX) chemical analysis of Ag/AgCl products at different
  • percentage of biosynthesized Ag/AgCl nanoparticles (52% − 36% = 16%). The degradation of the product with respect to temperature exhibited a behavior similar to that of nanoparticle biosynthesis, as shown by XRD, EDX, and TEM. That is, there is a difference in the degradation at intermediate temperatures (Ag
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Published 13 Dec 2022

Hydroxyapatite–bioglass nanocomposites: Structural, mechanical, and biological aspects

  • Olga Shikimaka,
  • Mihaela Bivol,
  • Bogdan A. Sava,
  • Marius Dumitru,
  • Christu Tardei,
  • Beatrice G. Sbarcea,
  • Daria Grabco,
  • Constantin Pyrtsac,
  • Daria Topal,
  • Andrian Prisacaru,
  • Vitalie Cobzac and
  • Viorel Nacu

Beilstein J. Nanotechnol. 2022, 13, 1490–1504, doi:10.3762/bjnano.13.123

Graphical Abstract
  • special cleaning process for 6 min in a nitrogen plasma jet in a FISCHONE Plasma Cleaner. A FEI QUANTA INSPECT S SEM was used to observe structure and morphology of the samples after their treatment in simulated body fluid, as well as to acquire the energy-dispersive X-ray (EDX) spectra and the elemental
  • ). The EDX analysis demonstrated that the precipitate layer contained Ca, P, Na, Mg, and K, with highest fractions of Ca and P (Figure 8d). The Ca/P ratio takes values between 1.23 and 2.33 with generally lower values for HAG-based composites and the tendency to increase with soaking time in SBF for both
  • obtained values of Ca/P ratio higher than 1.67 suggest the formation of B-type CHA, characteristic for biological hydroxyapatite, in which the PO43− ions are substituted by CO32− ions, accordingly increasing the Ca/P ratio [56]. This is confirmed by the EDX analysis showing the presence of C (Figure 8d
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Published 12 Dec 2022

Rapid and sensitive detection of box turtles using an electrochemical DNA biosensor based on a gold/graphene nanocomposite

  • Abu Hashem,
  • M. A. Motalib Hossain,
  • Ab Rahman Marlinda,
  • Mohammad Al Mamun,
  • Khanom Simarani and
  • Mohd Rafie Johan

Beilstein J. Nanotechnol. 2022, 13, 1458–1472, doi:10.3762/bjnano.13.120

Graphical Abstract
  • with graphene. The spectrum of Gr in Figure 2c obtained by energy dispersive X-ray spectroscopy (EDX) clearly demonstrates the presence of a high amount of carbon with a minimum amount of oxygen, indicating the purity of Gr. Figure 2d clearly shows the presence of carbon, oxygen, and AuNPs in the
  • composite. The weight and atomic contribution of each of these elements in the nanocomposite were given with their corresponding EDX spectrum. The use of AuNPs–Gr as a DNA immobilisation matrix enhances the active surface area of the modified SPCE, allowing for a stronger DNA hybridisation detection signal
  • of different nanoparticles and their composites. FESEM images of (a) Gr and (b) AuNPs/Gr; EDX of images of (c) Gr and (d) AuNPs/Gr; UV–vis spectra of (e) Gr and (f) AuNPs/Gr; and FTIR spectra of (g) Gr, AuNPs/Gr, and DNA/AuNPs/Gr. AuNPs were taken (33.33%, 1:3) in the AuNPs/Gr nanocomposite
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Published 06 Dec 2022

Near-infrared photoactive Ag-Zn-Ga-S-Se quantum dots for high-performance quantum dot-sensitized solar cells

  • Roopakala Kottayi,
  • Ilangovan Veerappan and
  • Ramadasse Sittaramane

Beilstein J. Nanotechnol. 2022, 13, 1337–1344, doi:10.3762/bjnano.13.110

Graphical Abstract
  • JSM-7600F. The electronic states of the elements and their atomic ratio in the prepared samples was analyzed by using XPS (Kratos AXIS Ultra DLD) and EDX (Bruker Nano XFlash detector attached to the HRTEM). Optical properties were examined by using a UV–vis–NIR spectrophotometer (Perkin Elmer L-650 UV
  • the crystalline nature of AZGSSe QDs. Figure 2b shows the EDX spectrum of AZGSSe QDs. The fractions of Ag, Zn, Ga, S, and Se were found to be 16.74, 16.92, 16.73, 24.39, and 24.94 atom %, respectively. The corresponding stoichiometric ratio was calculated as 1:0.99:1.01:1.46:1.49, which is
  • ]. Studies of Ag-Zn-Ga-S-Se QD-sensitized TiO2 NFs The surface morphology of AZGSSe/TiO2 was examined through HRTEM and EDX analysis. The HRTEM image (Figure 5a) shows the presence of AZGSSe QDs on the TiO2 NFs. The EDX spectrum (Figure 5b) shows the peaks of Ti, O, Ag, Zn, Ga, S, and Se. These analyses
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Published 14 Nov 2022

Electrocatalytic oxygen reduction activity of AgCoCu oxides on reduced graphene oxide in alkaline media

  • Iyyappan Madakannu,
  • Indrajit Patil,
  • Bhalchandra Kakade and
  • Kasibhatta Kumara Ramanatha Datta

Beilstein J. Nanotechnol. 2022, 13, 1020–1029, doi:10.3762/bjnano.13.89

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  • , wherein we notice irregular morphologies besides agglomeration of the particles (Figure S3f, Supporting Information File 1). The increasing silver fraction in the trimetallic assemblies was observed from EDX analysis as shown in Figure S4, Supporting Information File 1. After examining the composition of
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Published 26 Sep 2022

Effects of focused electron beam irradiation parameters on direct nanostructure formation on Ag surfaces

  • Jānis Sniķeris,
  • Vjačeslavs Gerbreders,
  • Andrejs Bulanovs and
  • Ēriks Sļedevskis

Beilstein J. Nanotechnol. 2022, 13, 1004–1010, doi:10.3762/bjnano.13.87

Graphical Abstract
  • material greatly affects the growth rate of the nanowires, with the Cu surface providing the fastest growth. Energy-dispersive X-ray spectroscopy (EDX) revealed the presence of both carbon and substrate materials in the nanowires. The effect of substrate material on nanowire growth rate could be attributed
  • to different adhesion coefficients between the surface and hydrocarbons. Results from EDX measurements strongly suggest that metal atoms or ions are capable of moving within carbon–metal nanowires under the influence of EB. High Ag ion mobility under electric fields or EB has also been reported in
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Published 22 Sep 2022

Hierarchical Bi2WO6/TiO2-nanotube composites derived from natural cellulose for visible-light photocatalytic treatment of pollutants

  • Zehao Lin,
  • Zhan Yang and
  • Jianguo Huang

Beilstein J. Nanotechnol. 2022, 13, 745–762, doi:10.3762/bjnano.13.66

Graphical Abstract
  • ). Meanwhile, selected area electron diffraction (SAED) patterns and energy dispersive X-ray spectrometry (EDX) mapping images were obtained via HR-TEM. The instrument models used in FE-SEM, TEM, and HR-TEM were Hitachi SU-8010, Hitachi HT-7700, and JEM-2100F, and the working voltages were 5.0, 100, and 200 kV
  • nanocomposites were measured by EDX to be 38.4, 54.3, 72.9, and 95.2 wt %, respectively, as displayed in Supporting Information File 1, Figure S1 and Table S2. As shown in Figure 2a, the XRD patterns of the Bi2WO6/TiO2-NT nanocomposites all exhibit characteristic diffraction peaks at 2θ = 28.3, 32.7, 47.1, 55.9
  • ) plane of the russellite phase Bi2WO6 and the (101) plane of the anatase phase TiO2, the thick ring 1 is ascribed to these two planes. Figure 4c−h exhibit the EDX element mapping images of Bi, W, Ti, and O elements of the composite nanotube surface in the hierarchical 70%−Bi2WO6/TiO2-NT nanocomposite
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Published 04 Aug 2022
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