Search results

Search for "X-ray spectroscopy" in Full Text gives 182 result(s) in Beilstein Journal of Nanotechnology.

Uniform Fe3O4/Gd2O3-DHCA nanocubes for dual-mode magnetic resonance imaging

  • Miao Qin,
  • Yueyou Peng,
  • Mengjie Xu,
  • Hui Yan,
  • Yizhu Cheng,
  • Xiumei Zhang,
  • Di Huang,
  • Weiyi Chen and
  • Yanfeng Meng

Beilstein J. Nanotechnol. 2020, 11, 1000–1009, doi:10.3762/bjnano.11.84

Graphical Abstract
  • . Characterization of nanocubes and nanoparticles A high-resolution transmission electron microscope (HRTEM, JEM-2010F, Japan), operated at an acceleration voltage of 200 kV, was used to investigate the morphology and size of the nanocubes. Energy-dispersive X-ray spectroscopy (EDS, Oxford, X-MaxN, UK) was used to
  • (about 6.33 ± 0.09 nm) but were still monodisperse (Figure 2b,e). The change in size might have happened due to changes in the surface when the FGOA nanocubes were converted into FGDA nanocubes. In order to verify the composition and distribution of elements in the FGDA nanocubes, energy-dispersive X-ray
  • spectroscopy (EDS) was performed. The EDS spectrum shows that iron, gadolinium and oxygen were the main elements present in the nanocubes. No other impurity elements can be detected except carbon element, which contributes from carbon film on copper mesh used in the EDS experiments. EDS mapping indicates that
PDF
Album
Full Research Paper
Published 08 Jul 2020

Effect of Ag loading position on the photocatalytic performance of TiO2 nanocolumn arrays

  • Jinghan Xu,
  • Yanqi Liu and
  • Yan Zhao

Beilstein J. Nanotechnol. 2020, 11, 717–728, doi:10.3762/bjnano.11.59

Graphical Abstract
  • structure. Figure 2c shows the energy-dispersive X-ray spectroscopy (EDS) spectrum of TNC, and we find that the elements of the array are mainly composed of C, O, and Ti. Among them, C comes from organic substrates. Figure 2d, 2e, and 2f are AFT structures with thickness of Ag deposition of 10, 20, and 40
PDF
Album
Full Research Paper
Published 05 May 2020

Structural optical and electrical properties of a transparent conductive ITO/Al–Ag/ITO multilayer contact

  • Aliyu Kabiru Isiyaku,
  • Ahmad Hadi Ali and
  • Nafarizal Nayan

Beilstein J. Nanotechnol. 2020, 11, 695–702, doi:10.3762/bjnano.11.57

Graphical Abstract
  • annealing on the Si substrate obtained using energy-dispersive X-ray spectroscopy (EDXS) are displayed in Table 1. A reduction of the oxygen content was observed after annealing. The content of metal and semiconductor materials accordingly increases. Si as substrate material shows the highest content. The
  • calculate the crystallite (grain) size. Elemental composition analyses The elemental composition of as-deposited and annealed IAAI multilayer films was investigated using energy-dispersive X-ray spectroscopy (EDXS). A FESEM JEOL JSM-7600F, Japan, equipped with an energy-dispersive X-ray spectrometer EDS
PDF
Album
Full Research Paper
Published 27 Apr 2020

High-performance asymmetric supercapacitor made of NiMoO4 nanorods@Co3O4 on a cellulose-based carbon aerogel

  • Meixia Wang,
  • Jing Zhang,
  • Xibin Yi,
  • Benxue Liu,
  • Xinfu Zhao and
  • Xiaochan Liu

Beilstein J. Nanotechnol. 2020, 11, 240–251, doi:10.3762/bjnano.11.18

Graphical Abstract
  • . To confirm the structure of NiMoO4@Co3O4/CA, energy-dispersive X-ray spectroscopy (EDS) and elemental mappings were carried out as shown in Figure 3b and Figure 3d–h. It can be clearly seen that there are signals for C, O, Co, Ni and Mo indicating the coexistence of the Co3O4 phase and NiMoO4 phase
PDF
Album
Supp Info
Full Research Paper
Published 21 Jan 2020

Simple synthesis of nanosheets of rGO and nitrogenated rGO

  • Pallellappa Chithaiah,
  • Madhan Mohan Raju,
  • Giridhar U. Kulkarni and
  • C. N. R. Rao

Beilstein J. Nanotechnol. 2020, 11, 68–75, doi:10.3762/bjnano.11.7

Graphical Abstract
  • ) shows that the nanosheets possess a smooth surface and are loosely stacked. Energy-dispersive X-ray spectroscopy (EDS) was also measured to determine the chemical composition of rGO. Result from EDS shows (Figure 4c) that the product contains only C and O. The atomic fractions of C and O are found to be
  • Mira3 field-emission scanning electron microscope (FESEM) equipped with an energy-dispersive X-ray spectroscopy (EDS). The TEM, HRTEM images and SAED patterns were obtained on a TALOS F200S G2, 200 kV FEG, and a CMOS camera (4k × 4k). The TEM samples were prepared by suspending the samples in ethanol
PDF
Album
Supp Info
Full Research Paper
Published 07 Jan 2020

Synthesis of amorphous and graphitized porous nitrogen-doped carbon spheres as oxygen reduction reaction catalysts

  • Maximilian Wassner,
  • Markus Eckardt,
  • Andreas Reyer,
  • Thomas Diemant,
  • Michael S. Elsaesser,
  • R. Jürgen Behm and
  • Nicola Hüsing

Beilstein J. Nanotechnol. 2020, 11, 1–15, doi:10.3762/bjnano.11.1

Graphical Abstract
  • particles are observed for the graphitized samples via energy dispersive X-ray spectroscopy (EDX) and X-ray photoelectron spectroscopy (XPS). However, we cannot fully exclude small amounts of residual iron in the graphitized catalysts below the detection limit of XPS (about 0.2 atom %) and EDX (about 0.1 wt
  • Scanning electron microscopy (SEM) images were recorded with a field-emission scanning electron microscope (FE-SEM, Zeiss Ultra Plus) at 10 to 12 keV beam energy. For imaging, the samples were deposited on a conducting carbon film. Energy-dispersive X-ray spectroscopy (EDX) measurements were performed on
PDF
Album
Full Research Paper
Published 02 Jan 2020

Synthesis and acetone sensing properties of ZnFe2O4/rGO gas sensors

  • Kaidi Wu,
  • Yifan Luo,
  • Ying Li and
  • Chao Zhang

Beilstein J. Nanotechnol. 2019, 10, 2516–2526, doi:10.3762/bjnano.10.242

Graphical Abstract
  • in the ZnFe2O4/rGO composites [17][39]. We analyzed the actual composition of the spheres by energy-dispersive X-ray spectroscopy (EDS). As shown in Figure 4, the weight percentage of carbon in the spheres of ZnFe2O4/rGO with 0.5 and 1 wt % rGO was determined as 1.17 and 1.53%, respectively. The
PDF
Album
Full Research Paper
Published 16 Dec 2019

Label-free highly sensitive probe detection with novel hierarchical SERS substrates fabricated by nanoindentation and chemical reaction methods

  • Jingran Zhang,
  • Tianqi Jia,
  • Yongda Yan,
  • Li Wang,
  • Peng Miao,
  • Yimin Han,
  • Xinming Zhang,
  • Guangfeng Shi,
  • Yanquan Geng,
  • Zhankun Weng,
  • Daniel Laipple and
  • Zuobin Wang

Beilstein J. Nanotechnol. 2019, 10, 2483–2496, doi:10.3762/bjnano.10.239

Graphical Abstract
  • -up regions of cavities as shown in Figure 1d. Elemental analysis of the arrayed pyramidal cavities The parameters of the feeds (fx, fy) for fabricating micro/nanostructures using the method presented are shown in Table 1. Figure 3 shows SEM and energy-dispersive X-ray spectroscopy (EDX) images of the
PDF
Album
Full Research Paper
Published 13 Dec 2019

Semitransparent Sb2S3 thin film solar cells by ultrasonic spray pyrolysis for use in solar windows

  • Jako S. Eensalu,
  • Atanas Katerski,
  • Erki Kärber,
  • Lothar Weinhardt,
  • Monika Blum,
  • Clemens Heske,
  • Wanli Yang,
  • Ilona Oja Acik and
  • Malle Krunks

Beilstein J. Nanotechnol. 2019, 10, 2396–2409, doi:10.3762/bjnano.10.230

Graphical Abstract
  • absorption coefficient, such as Sb2S3 (>105 cm−1 at 450 nm), offer semitransparency, appreciable efficiency, and long-term durability at low cost. Oxide-free throughout the Sb2S3 layer thickness, as confirmed by combined studies of energy dispersive X-ray spectroscopy and synchrotron soft X-ray emission
  • detected, which is an expected result when crystalline Sb2S3 is formed [28][46][49]. No traces of additional phases were detected by either XRD or Raman in any glass/ITO/TiO2/Sb2S3 samples. Chlorine, which could originate from the SbCl3 precursor, was not detected by energy-dispersive X-ray spectroscopy
PDF
Album
Supp Info
Full Research Paper
Published 06 Dec 2019

Use of data processing for rapid detection of the prostate-specific antigen biomarker using immunomagnetic sandwich-type sensors

  • Camila A. Proença,
  • Tayane A. Freitas,
  • Thaísa A. Baldo,
  • Elsa M. Materón,
  • Flávio M. Shimizu,
  • Gabriella R. Ferreira,
  • Frederico L. F. Soares,
  • Ronaldo C. Faria and
  • Osvaldo N. Oliveira Jr.

Beilstein J. Nanotechnol. 2019, 10, 2171–2181, doi:10.3762/bjnano.10.210

Graphical Abstract
  • spectroscopy (FTIR), field-emission scanning electron microscopy (FE-SEM), energy-dispersive X-ray spectroscopy (EDX), and polarization-modulated infrared reflection absorption spectroscopy (PM-IRRAS, Figure S1) is described. The Silhouette coefficients calculated for IDMAP, Sammon’s mapping (SM), principal
PDF
Album
Supp Info
Full Research Paper
Published 06 Nov 2019

Synthesis of highly active ETS-10-based titanosilicate for heterogeneously catalyzed transesterification of triglycerides

  • Muhammad A. Zaheer,
  • David Poppitz,
  • Khavar Feyzullayeva,
  • Marianne Wenzel,
  • Jörg Matysik,
  • Radomir Ljupkovic,
  • Aleksandra Zarubica,
  • Alexander A. Karavaev,
  • Andreas Pöppl,
  • Roger Gläser and
  • Muslim Dvoyashkin

Beilstein J. Nanotechnol. 2019, 10, 2039–2061, doi:10.3762/bjnano.10.200

Graphical Abstract
PDF
Album
Supp Info
Full Research Paper
Published 28 Oct 2019

Gold-coated plant virus as computed tomography imaging contrast agent

  • Alaa A. A. Aljabali,
  • Mazhar S. Al Zoubi,
  • Khalid M. Al-Batanyeh,
  • Ali Al-Radaideh,
  • Mohammad A. Obeid,
  • Abeer Al Sharabi,
  • Walhan Alshaer,
  • Bayan AbuFares,
  • Tasnim Al-Zanati,
  • Murtaza M. Tambuwala,
  • Naveed Akbar and
  • David J. Evans

Beilstein J. Nanotechnol. 2019, 10, 1983–1993, doi:10.3762/bjnano.10.195

Graphical Abstract
  • concentration of 0.01–0.05 mg/mL and deposited on 400 mesh carbon grids (SPI supplies), samples were air dried prior to imaging. Energy-dispersive X-Ray spectroscopy A FIB Scios system was used combined with a scanning electron microscope (SEM) and a focused ion beam equipped with X-MaxN 50 mm2 EDS system to
PDF
Album
Full Research Paper
Published 07 Oct 2019

Synthesis of nickel/gallium nanoalloys using a dual-source approach in 1-alkyl-3-methylimidazole ionic liquids

  • Ilka Simon,
  • Julius Hornung,
  • Juri Barthel,
  • Jörg Thomas,
  • Maik Finze,
  • Roland A. Fischer and
  • Christoph Janiak

Beilstein J. Nanotechnol. 2019, 10, 1754–1767, doi:10.3762/bjnano.10.171

Graphical Abstract
  • accelerating voltage [79] or with a Philips CM20 operated at 200 kV accelerating voltage. Conventional TEM images were recorded with a Gatan UltraScan 1000P detector. Energy-dispersive X-ray spectroscopy. EDX spectra for elemental (metal) analysis were recorded using an exposure time of 3 min. High-angle
PDF
Album
Supp Info
Full Research Paper
Published 21 Aug 2019

TiO2/GO-coated functional separator to suppress polysulfide migration in lithium–sulfur batteries

  • Ning Liu,
  • Lu Wang,
  • Taizhe Tan,
  • Yan Zhao and
  • Yongguang Zhang

Beilstein J. Nanotechnol. 2019, 10, 1726–1736, doi:10.3762/bjnano.10.168

Graphical Abstract
  • synthesized by selectively dissolving Al atoms from a Ti10Al90 alloy. It can be readily observed that the abundant nanowires and uniform nanopores, with a pore size of ≈40 nm, formed a sea-urchin-like structure. Furthermore, the energy-dispersive X-ray spectroscopy (EDS) analysis confirms the homogenous
PDF
Album
Full Research Paper
Published 19 Aug 2019

Direct observation of oxygen-vacancy formation and structural changes in Bi2WO6 nanoflakes induced by electron irradiation

  • Hong-long Shi,
  • Bin Zou,
  • Zi-an Li,
  • Min-ting Luo and
  • Wen-zhong Wang

Beilstein J. Nanotechnol. 2019, 10, 1434–1442, doi:10.3762/bjnano.10.141

Graphical Abstract
  • = 1.5406 Å). Morphological analyses were carried out on a field-emission scanning electron microscope (SEM, Hitachi S-4800) equipped with an energy-dispersive X-ray spectroscopy (EDX) detector operating at 10 kV and 10 μA. Selected-area electron diffraction (SAED) and high-resolution transmission electron
PDF
Album
Supp Info
Full Research Paper
Published 18 Jul 2019

BiOCl/TiO2/diatomite composites with enhanced visible-light photocatalytic activity for the degradation of rhodamine B

  • Minlin Ao,
  • Kun Liu,
  • Xuekun Tang,
  • Zishun Li,
  • Qian Peng and
  • Jing Huang

Beilstein J. Nanotechnol. 2019, 10, 1412–1422, doi:10.3762/bjnano.10.139

Graphical Abstract
  • nanosheets can be found on the surface. Elemental mapping was carried out by energy-dispersive X-ray spectroscopy (EDS) to study the elemental dispersion on the BTD surface. Figure 5 shows that the elements Bi, Si, Cl, O and Ti distribute uniformly on the diatomite disc, which confirms the successful
  • the survey scan (a) and detailed Bi 4f (b), Si 2p (c), Cl 2p (d), O 1s (e) and Ti 2p (f) spectra. SEM images of BiOCl (a), TiO2 (b), TiO2/diatomite (c) and BTD (d and e). Energy-dispersive X-ray spectroscopy (EDS) mapping of BTD, including SEM image (a), O element (b), Si element (c), Cl element (d
PDF
Album
Supp Info
Full Research Paper
Published 16 Jul 2019

Gas sensing properties of individual SnO2 nanowires and SnO2 sol–gel nanocomposites

  • Alexey V. Shaposhnik,
  • Dmitry A. Shaposhnik,
  • Sergey Yu. Turishchev,
  • Olga A. Chuvenkova,
  • Stanislav V. Ryabtsev,
  • Alexey A. Vasiliev,
  • Xavier Vilanova,
  • Francisco Hernandez-Ramirez and
  • Joan R. Morante

Beilstein J. Nanotechnol. 2019, 10, 1380–1390, doi:10.3762/bjnano.10.136

Graphical Abstract
  • calcination as follows: Figure 2 shows a TEM image of the obtained material. The particle diameter derived from this measurement was found to be 4–6 nm. X-ray spectroscopy of the materials In the present study, we used the non-destructive techniques, X-ray photoelectron spectroscopy (XPS) and X-ray absorption
  • . After drying at 90 °C for 1 hour, the substrate was heated to 750 °С for 15 minutes and kept thereafter at 400 °C for several hours. The measurements were carried out in a special chamber integrated together with a specially designed multichannel measuring device. Results and Discussion X-ray
  • spectroscopy: Comparison of nanowire and nanopowder properties XRD spectra obtained by different methods (Figure 4) show a principal difference between the nanowires obtained by gas transport synthesis and the samples precipitated from nanopowder. The spectral band width at half-height characterizes the size
PDF
Album
Full Research Paper
Published 08 Jul 2019

The effect of magneto-crystalline anisotropy on the properties of hard and soft magnetic ferrite nanoparticles

  • Hajar Jalili,
  • Bagher Aslibeiki,
  • Ali Ghotbi Varzaneh and
  • Volodymyr A. Chernenko

Beilstein J. Nanotechnol. 2019, 10, 1348–1359, doi:10.3762/bjnano.10.133

Graphical Abstract
  • magnetic interactions are discussed in more detail in the following sections. The qualitative chemical composition of the samples was investigated by using energy-dispersive X-ray spectroscopy (EDX). Figure 4 shows the EDX spectra for the samples with x = 0.2, 0.6 and 1. The EDX spectra confirm the
PDF
Album
Full Research Paper
Published 03 Jul 2019

Alloyed Pt3M (M = Co, Ni) nanoparticles supported on S- and N-doped carbon nanotubes for the oxygen reduction reaction

  • Stéphane Louisia,
  • Yohann R. J. Thomas,
  • Pierre Lecante,
  • Marie Heitzmann,
  • M. Rosa Axet,
  • Pierre-André Jacques and
  • Philippe Serp

Beilstein J. Nanotechnol. 2019, 10, 1251–1269, doi:10.3762/bjnano.10.125

Graphical Abstract
  • Co islands (Supporting Information File 1, Figure S7a,b) were identified using the scanning transmission electron microscopy/high-angle annular dark-field imaging (STEM-HAADF) technique. Energy-dispersive X-ray spectroscopy (EDX) analysis on the N-CNT surface or in the Co aggregates confirmed the
PDF
Album
Supp Info
Full Research Paper
Published 21 Jun 2019

Porous N- and S-doped carbon–carbon composite electrodes by soft-templating for redox flow batteries

  • Maike Schnucklake,
  • László Eifert,
  • Jonathan Schneider,
  • Roswitha Zeis and
  • Christina Roth

Beilstein J. Nanotechnol. 2019, 10, 1131–1139, doi:10.3762/bjnano.10.113

Graphical Abstract
  • -dispersive X-ray spectroscopy (EDX) analyses were performed with an X-Max 50 silicon drift detector (Oxford Instruments) at an acceleration voltage of 10 kV. Nitrogen adsorption and desorption isotherms were recorded at 77 K using a high-resolution Micromeritics 3Flex instrument. Prior to the measurement the
PDF
Album
Full Research Paper
Published 28 May 2019

Synthesis and characterization of quaternary La(Sr)S–TaS2 misfit-layered nanotubes

  • Marco Serra,
  • Erumpukuthickal Ashokkumar Anumol,
  • Dalit Stolovas,
  • Iddo Pinkas,
  • Ernesto Joselevich,
  • Reshef Tenne,
  • Andrey Enyashin and
  • Francis Leonard Deepak

Beilstein J. Nanotechnol. 2019, 10, 1112–1124, doi:10.3762/bjnano.10.111

Graphical Abstract
  • electron microscopy (SEM) was done by LEO model Supra 55VP SEM. Transmission electron microscopy (TEM) and scanning transmission electron microscopy (STEM) were performed on a Titan Themis 80-300 microscope with probe and image spherical aberration (Cs) correctors, at 200 kV. Energy-dispersive X-ray
  • spectroscopy (EDX) was performed using a SuperX EDX detector attached to this microscope using Bruker Esprit software. The quantification was done using the Cliff–Lorimer method. The samples for electron microscopy were prepared by dispersing the synthesized powder in ethyl alcohol, followed by ultrasonication
PDF
Album
Supp Info
Full Research Paper
Published 24 May 2019

CuInSe2 quantum dots grown by molecular beam epitaxy on amorphous SiO2 surfaces

  • Henrique Limborço,
  • Pedro M.P. Salomé,
  • Rodrigo Ribeiro-Andrade,
  • Jennifer P. Teixeira,
  • Nicoleta Nicoara,
  • Kamal Abderrafi,
  • Joaquim P. Leitão,
  • Juan C. Gonzalez and
  • Sascha Sadewasser

Beilstein J. Nanotechnol. 2019, 10, 1103–1111, doi:10.3762/bjnano.10.110

Graphical Abstract
  • electron microscopy (STEM) images were taken with a FEI Titan ChemiSTEM 80-200 kV Cs-probe corrected transmission electron microscope, operating at 200 kV accelerating potential and equipped with an energy-dispersive X-ray spectroscopy (EDS) SuperX-Bruker silicon drift detector. In this method a coherent
  • amorphous layer as evidenced by the STEM analysis. Energy-dispersive X-ray spectroscopy (EDS) mapping was carried out in the 530 °C sample in order to determine the chemical composition of the nanodots. Figure 3a–f, shows a low-resolution cross-section HAADF image of the sample, as well as the EDS chemical
PDF
Album
Full Research Paper
Published 22 May 2019

An efficient electrode material for high performance solid-state hybrid supercapacitors based on a Cu/CuO/porous carbon nanofiber/TiO2 hybrid composite

  • Mamta Sham Lal,
  • Thirugnanam Lavanya and
  • Sundara Ramaprabhu

Beilstein J. Nanotechnol. 2019, 10, 781–793, doi:10.3762/bjnano.10.78

Graphical Abstract
  • /PCNF material (Figure 5f). Figure 5g shows the FE-SEM image of Cu/CuO/PCNF/TiO2 composite and Figure 5h shows a magnified image. The uniform dispersion of TiO2 nanoparticles is clearly visible over the fiber surface after the hydrothermal treatment (Figure 5h). For energy dispersive X-ray spectroscopy
PDF
Album
Supp Info
Full Research Paper
Published 01 Apr 2019

One-step nonhydrolytic sol–gel synthesis of mesoporous TiO2 phosphonate hybrid materials

  • Yanhui Wang,
  • P. Hubert Mutin and
  • Johan G. Alauzun

Beilstein J. Nanotechnol. 2019, 10, 356–362, doi:10.3762/bjnano.10.35

Graphical Abstract
  • did not react with titanium tetraisopropoxide under the same conditions. All four materials are referred to as TiPx where x is the P/Ti ratio. For comparison, a TiO2 sample was prepared under the exact same conditions but without diethyl octylphosphonate. Elemental analysis by energy dispersive X-ray
  • spectroscopy (EDX) of these materials showed that in all cases the measured P/Ti ratios were close to the nominal ones, indicating that all the octylphosphonate units were incorporated in the materials (Table 1). The 31P solid-state NMR spectra of the hybrid materials (Figure 1) display a very broad signal in
PDF
Album
Full Research Paper
Published 05 Feb 2019

Study of silica-based intrinsically emitting nanoparticles produced by an excimer laser

  • Imène Reghioua,
  • Mattia Fanetti,
  • Sylvain Girard,
  • Diego Di Francesca,
  • Simonpietro Agnello,
  • Layla Martin-Samos,
  • Marco Cannas,
  • Matjaz Valant,
  • Melanie Raine,
  • Marc Gaillardin,
  • Nicolas Richard,
  • Philippe Paillet,
  • Aziz Boukenter,
  • Youcef Ouerdane and
  • Antonino Alessi

Beilstein J. Nanotechnol. 2019, 10, 211–221, doi:10.3762/bjnano.10.19

Graphical Abstract
  • homogeneity of the emission features of the samples. Similarly, energy dispersive X-ray spectroscopy (EDX) data showed that the O, Ge and Si signals qualitatively correspond to the particle morphology, suggesting a generally uniform chemical composition of the Ge-doped samples. No significant CL signal could
  • observed in the sample. To deeply investigate our sample in Figure 1c,d and e we report the energy dispersive X-ray spectroscopy (EDX) signals of the Si Kα1, Ge Lα1,2 and O Kα1 lines, respectively. The data have been recorded for the group of nanoparticles inside the red square named 1 in panel a. These
PDF
Album
Full Research Paper
Published 16 Jan 2019
Other Beilstein-Institut Open Science Activities