Surfactant-free syntheses and pair distribution function analysis of osmium nanoparticles

• Mikkel Juelsholt,
• Jonathan Quinson,
• Emil T. S. Kjær,
• Baiyu Wang,
• Rebecca Pittkowski,
• Susan R. Cooper,
• Tiffany L. Kinnibrugh,
• Søren B. Simonsen,
• Luise Theil Kuhn,
• María Escudero-Escribano and
• Kirsten M. Ø. Jensen

Beilstein J. Nanotechnol. 2022, 13, 230–235, doi:10.3762/bjnano.13.17

• conditions to obtain Os NPs for further studies. Transmission electron microscopy images from samples synthesized with these parameter sets are shown in Figure 1. The small size of the nanoparticles challenges conventional structural characterization methods such as X-ray diffraction analysis (XRD). Here, we

Piezoelectric nanogenerator for bio-mechanical strain measurement

• Zafar Javed,
• Lybah Rafiq,
• Muhammad Anwaar Nazeer,
• Saqib Siddiqui,
• Muhammad Babar Ramzan,
• Muhammad Qamar Khan and
• Muhammad Salman Naeem

Beilstein J. Nanotechnol. 2022, 13, 192–200, doi:10.3762/bjnano.13.14

• characterized through scanning electron microscopy (SEM) and X-ray diffraction (XRD) to determine morphology and crystalline structure, respectively. Sensor development, its embedding, and testing The prepared PVDF nanofibrous mesh was folded into a square shape (4 cm2) with 2 mm thickness for sensor

• diameter variation of nanofibers against different solution concentrations (D). X-ray diffraction pattern of nanofibers at various concentrations. Digital oscilloscope graph of the sensor under low dynamic strain (A), the output voltage under low dynamic stress (B), digital oscilloscope graph of the sensor

• fluoride (PVDF) and other piezoelectric polymers are used in the form of fibers, filaments, and composites. In this research, PVDF nanofibers were developed and integrated onto a knitted fabric to fabricate a piezoelectric device for human body angle monitoring. Scanning electron microscopy and X-ray

Theranostic potential of self-luminescent branched polyethyleneimine-coated superparamagnetic iron oxide nanoparticles

• Rouhollah Khodadust,
• Ozlem Unal and
• Havva Yagci Acar

Beilstein J. Nanotechnol. 2022, 13, 82–95, doi:10.3762/bjnano.13.6

• , holds great potential for effective gene/drug delivery coupled with dual-mode imaging. a) TEM image of SPION@bPEI. b) AFM micrograph image of SPION@bPEI (magnetic mode). c) X-ray diffraction pattern of SPION@bPEI prepared via the in situ coating method. Since the presence of the polymer prevented the

Sputtering onto liquids: a critical review

• Anastasiya Sergievskaya,
• Adrien Chauvin and
• Stephanos Konstantinidis

Beilstein J. Nanotechnol. 2022, 13, 10–53, doi:10.3762/bjnano.13.2

Biocompatibility and cytotoxicity in vitro of surface-functionalized drug-loaded spinel ferrite nanoparticles

• Sadaf Mushtaq,
• Khuram Shahzad,
• Tariq Saeed,
• Anwar Ul-Hamid,
• Bilal Haider Abbasi,
• Nafees Ahmad,
• Waqas Khalid,
• Muhammad Atif,
• Zulqurnain Ali and
• Rashda Abbasi

Beilstein J. Nanotechnol. 2021, 12, 1339–1364, doi:10.3762/bjnano.12.99

• cytotoxicity of these nanocarriers for potential anticancer drug delivery systems. Results and Discussion Physical characterizations The X-ray diffraction (XRD) data of all samples was analyzed using Rietveld refinement techniques in the Fullprof Suit program. The data was refined according to their space

Electrical, electrochemical and structural studies of a chlorine-derived ionic liquid-based polymer gel electrolyte

• Ashish Gupta,
• Amrita Jain,
• Manju Kumari and
• Santosh K. Tripathi

Beilstein J. Nanotechnol. 2021, 12, 1252–1261, doi:10.3762/bjnano.12.92

• work [10]. The uniformly distributed pores present in the films lead to the retention of liquid electrolytes, thereby increasing the overall ionic conductivity of the electrolyte films. X-ray diffraction (XRD) patterns were also recorded to check the crystallinity of the synthesized material. The

• two weeks, free-standing polymer gel electrolyte films of ≈400–500 µm thickness were obtained. Measurements and characterization X-ray diffraction studies of the polymer electrolyte films were recorded using a Bruker D8 Advance diffractometer with the Bragg angle (2θ) ranging from 10 to 60° and under

• obtained from X-ray diffraction of ionic liquid-based polymer gel electrolytes. Non-linear fitting parameters from the VTF equation. Acknowledgements All authors are thankful to Jaypee University of Engineering and Technology India for providing electrochemical and electrical characterization facilities

The effect of cobalt on morphology, structure, and ORR activity of electrospun carbon fibre mats in aqueous alkaline environments

• Markus Gehring,
• Tobias Kutsch,
• Osmane Camara,
• Alexandre Merlen,
• Hermann Tempel,
• Hans Kungl and
• Rüdiger-A. Eichel

Beilstein J. Nanotechnol. 2021, 12, 1173–1186, doi:10.3762/bjnano.12.87

• fibres. In this study, cobalt-decorated fibres are prepared, and the influence of carbonisation temperature on the resulting particle decoration, as well as on fibre structure and morphology is discussed. Scanning electron microscopy, Raman spectroscopy, X-ray diffraction, X-ray photoelectron

• electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, elemental analysis, and inductively coupled plasma optical emission spectrometry (ICP-OES). In addition, the fibres were analysed in terms of their

pH-driven enhancement of anti-tubercular drug loading on iron oxide nanoparticles for drug delivery in macrophages

• Karishma Berta Cotta,
• Sarika Mehra and
• Rajdip Bandyopadhyaya

Beilstein J. Nanotechnol. 2021, 12, 1127–1139, doi:10.3762/bjnano.12.84

• nanoparticles. (a) Dynamic light scattering plot of number (%) v/s size (nm) of the nanoparticles in solution at the end of synthesis (n = 3). (b) Transmission electron microscopy image with a 50 nm scale bar. (c) X-ray diffraction plot indicating the Bragg’s 2θ diffraction angles identical to peaks observed

• synthesis (n = 3). (b) Transmission electron microscopy image with a 50 nm scale bar. (c) X-ray diffraction pattern indicating the Bragg’s angle corresponding to those observed in iron oxide. (d) FTIR plot of transmittance v/s wavenumber depicting functional groups of iron oxide. Drug release profile over

• ) images, which were obtained using the JOEL-JEM 2100F TEM 200 kV, USA. For TEM imaging, re-dispersed nanoparticle samples were diluted and 10 µL was loaded on a formvar coated Cu grid. The sample was dried using an infrared lamp. The images obtained were analyzed using the ImageJ software. X-ray

First-principles study of the structural, optoelectronic and thermophysical properties of the π-SnSe for thermoelectric applications

• Muhammad Atif Sattar,
• Najwa Al Bouzieh,
• Maamar Benkraouda and
• Noureddine Amrane

Beilstein J. Nanotechnol. 2021, 12, 1101–1114, doi:10.3762/bjnano.12.82

• as a result of rigid controlled lattice growth conditions, poor elastic properties, and high cost for mass production [45]. Recently, a new cubic crystal structure of tin monoselenide (π-SnSe) (analogous to π-SnS [46]) has been characterized within binary phase by using X-ray diffraction and

• the space group of P213 (no. 198) of the 64-atom unit cell with an exceptionally large lattice parameter of 11.9702 Å according to X-ray diffraction using the Rietveld method [47]. The unit cell of π-SnSe is presented in Figure 1. There are 64 atoms (Sn = 32, Se = 32) in the primitive unit cell of the

Revealing the formation mechanism and band gap tuning of Sb₂S₃ nanoparticles

• Maximilian Joschko,
• Franck Yvan Fotue Wafo,
• Christina Malsi,
• Danilo Kisić,
• Ivana Validžić and
• Christina Graf

Beilstein J. Nanotechnol. 2021, 12, 1021–1033, doi:10.3762/bjnano.12.76

• after 30 min. There were still type III structures found consisting of type II particles. After 8 h, the dispersion started to turn brownish in color. The amorphous, spherically shaped type II nanoparticles (see X-ray diffraction spectrometry, XRD in Figure 2 below) began to form the first crystalline

Self-assembly of Eucalyptus gunnii wax tubules and pure ß-diketone on HOPG and glass

• Miriam Anna Huth,
• Axel Huth and
• Kerstin Koch

Beilstein J. Nanotechnol. 2021, 12, 939–949, doi:10.3762/bjnano.12.70

• ]. As early as 1871, de Bary proposed the designation “crystal” for the wax structures [10]. This hypothesis was later verified by X-ray diffraction [11][12]. The most common crystalline structure of epicuticular wax crystals is the orthorhombic order [13]. Studies of growing plant waxes showed that wax

Silver nanoparticles nucleated in NaOH-treated halloysite: a potential antimicrobial material

• Yuri B. Matos,
• Rodrigo S. Romanus,
• Mattheus Torquato,
• Edgar H. de Souza,
• Rodrigo L. Villanova,
• Marlene Soares and
• Emilson R. Viana

Beilstein J. Nanotechnol. 2021, 12, 798–807, doi:10.3762/bjnano.12.63

• studied the nucleation of silver on halloysite substrates modified by chemical treatment with NaOH. The resulting stabilized Ag-NPs were characterized by X-ray diffraction, transmission electron microscopy, and energy-dispersive X-ray spectroscopy. The nucleation was characterized by thermogravimetric

• Netzsch STA 449 F3. X-ray diffraction (XRD) measurements were carried out using a Shimadzu diffractometer, model XRD-7000, with Cu Kα radiation (λ = 0.154 nm). Substrate preparation To prepare the substrates for silver nucleation, halloysite was treated in a NaOH(aq) bath. Three HNT suspensions were

High-yield synthesis of silver nanowires for transparent conducting PET films

• Gul Naz,
• Hafsa Asghar,
• Muhammad Ramzan,
• Muhammad Arshad,
• Rashid Ahmed,
• Muhammad Bilal Tahir,
• Bakhtiar Ul Haq,
• Nadeem Baig and
• Junaid Jalil

Beilstein J. Nanotechnol. 2021, 12, 624–632, doi:10.3762/bjnano.12.51

• alignment on a large scale and were characterized by UV–vis spectroscopy, scanning electron microscopy (SEM), X-ray diffraction (XRD), and PL spectroscopy. The luminescent AgNWs exhibited red emission, which was accredited to deep holes. The SEM results confirmed the formation of AgNWs of 3.3 to 4.7 µm in

• purity of the product. The crystalline purity and structure of as-synthesized AgNWs was studied by X-ray diffraction. The different diffraction peaks were matched with the JCPDS card numbers 04-0783 and 99-0094 used for AgNWs. The results clearly indicate that the prepared AgNWs have a face-centered

Stability and activity of platinum nanoparticles in the oxygen electroreduction reaction: is size or uniformity of primary importance?

• Kirill O. Paperzh,
• Anastasia A. Alekseenko,
• Vadim A. Volochaev,
• Ilya V. Pankov,
• Olga A. Safronenko and
• Vladimir E. Guterman

Beilstein J. Nanotechnol. 2021, 12, 593–606, doi:10.3762/bjnano.12.49

• characteristics of the obtained Pt/C materials, we used the powder diffraction method. An ARL X’TRA powder diffractometer with a Bragg–Brentano geometry (θ-θ), Cu Kα radiation (λ = 0.154056 nm) at room temperature, was used to record X-ray diffraction patterns. The X-ray diffraction patterns of the samples under

• study were recorded in the angle range of 5 ≤ 2θ ≤ 90 degrees by the step-by-step scanning method with a detector movement step of 0.02 degrees. The X-ray diffraction patterns were processed by using the SciDavis software to properly extract the parameters of the peaks and this was of particular

• File 1. Results and Discussion The X-ray diffraction patterns of the catalysts that we have synthesized and the commercial analogs with different platinum contents have a similar shape, typical for Pt/C materials (Figure 1). The presence of nanosized platinum crystallites causes a broadening of the

Boosting of photocatalytic hydrogen evolution via chlorine doping of polymeric carbon nitride

• Malgorzata Aleksandrzak,
• Michalina Kijaczko,
• Wojciech Kukulka,
• Daria Baranowska,
• Martyna Baca,
• Beata Zielinska and
• Ewa Mijowska

Beilstein J. Nanotechnol. 2021, 12, 473–484, doi:10.3762/bjnano.12.38

• terminal amino groups (–NH2 or =NH) [53][54]. The spectra do not show Cl-containing functional groups, which can be attributed to their relatively low amount and the signal may be overlapped by the CN vibration. The X-ray diffraction (XRD) patterns (Figure 3b) showed that both samples displayed a similar

A review on nanostructured silver as a basic ingredient in medicine: physicochemical parameters and characterization

• Gabriel M. Misirli,
• Kishore Sridharan and
• Shirley M. P. Abrantes

Beilstein J. Nanotechnol. 2021, 12, 440–461, doi:10.3762/bjnano.12.36

• anionic and stable. Another important point is that with the increase in ionic strength the diffuse layer becomes more compact while the ZP decreases, and vice versa [153]. X-ray diffraction: The principle of the X-ray diffraction (XRD) technique is based on Bragg's law. The crystallographic planes of a

Solution combustion synthesis of a nanometer-scale Co₃O₄ anode material for Li-ion batteries

• Monika Michalska,
• Huajun Xu,
• Qingmin Shan,
• Shiqiang Zhang,
• Yohan Dall'Agnese,
• Yu Gao,
• Amrita Jain and
• Marcin Krajewski

Beilstein J. Nanotechnol. 2021, 12, 424–431, doi:10.3762/bjnano.12.34

• , the resulting gel precursor was heated in an alumina crucible from 300 to 700 °C for 5 h in air. The flowchart of the synthesis is presented in Figure 4. Characterization of the Co3O4 material: The structural properties of the Co3O4 material were determined using powder X-ray diffraction (XRD) and

Spontaneous shape transition of Mn_xGe_1−x islands to long nanowires

• S. Javad Rezvani,
• Luc Favre,
• Gabriele Giuli,
• Yiming Wubulikasimu,
• Isabelle Berbezier,
• Augusto Marcelli,
• Luca Boarino and
• Nicola Pinto

Beilstein J. Nanotechnol. 2021, 12, 366–374, doi:10.3762/bjnano.12.30

• (SEM), X-ray diffraction (XRD), and high-resolution transmission electron microscopy (HRTEM). We demonstrate that the thickness of the Mn layer and the annealing conditions finely control the shape transition, resulting in NWs up to ≃1.5 μm length with uniform width and homogeneous composition

• strained Mn wetting layers with different thickness after annealing at 650 °C for 15 min: (a) 2.2 ML, (b) 6.7 ML, and (c) 9 ML. X-ray diffraction pattern of the 9 ML thick Mn wetting layer, upon annealing at 650 °C for 15 min. Both Mn5Ge3 and Mn11Ge8 phases have been detected, the former being dominant

Structural and optical characteristics determined by the sputtering deposition conditions of oxide thin films

• Petronela Prepelita,
• Florin Garoi and
• Valentin Craciun

Beilstein J. Nanotechnol. 2021, 12, 354–365, doi:10.3762/bjnano.12.29

• Perkin-Elmer Lambda 950 Spectrophotometer, with a measuring range between 190 and 2500 nm, and a wavelength accuracy of 0.08 nm in UV–vis and 0.3 nm in the NIR band, respectively. Results The X-ray diffraction analysis of oxide samples was performed in the angle range of 25–80 degrees (Figure 1). This

• obtained from a source target. In the case of SiO2 thin films, it was confirmed by X-ray diffraction measurements that all structures were amorphous. Following X-ray diffraction analyses, it was proved that ZnO films show an orientation with the c-axis perpendicular to the substrate surface. The results

• dioxide (SiO2) and zinc oxide (ZnO) thin films deposited by radio frequency magnetron sputtering on quartz substrates was investigated. The deposition conditions were optimized to achieve stoichiometric thin films. The orientation of crystallites, structure, and composition were investigated by X-ray

Nickel nanoparticle-decorated reduced graphene oxide/WO₃ nanocomposite – a promising candidate for gas sensing

• Ilka Simon,
• Alexandr Savitsky,
• Rolf Mülhaupt,
• Vladimir Pankov and
• Christoph Janiak

Beilstein J. Nanotechnol. 2021, 12, 343–353, doi:10.3762/bjnano.12.28

• powder (diameter 10 mm, thickness 2.5 mm, weight 0.75 g), which were sintered in air at 450 °C (4 h). Characterization Powder X-ray diffraction, P-XRD data were measured at ambient temperature on a Bruker D2 Phaser using a flat sample holder and Cu Kα radiation (λ = 1.54182 Å, 35 kV). Samples had been

• mbar for several days. Then rGO was dispersed with Ni(COD)2 in [BMIm][NTf2] to gain 0.5 wt % metal nanoparticles and 0.5 wt % rGO. In order to stir the reaction mixture during the microwave decomposition, 0.5 wt % rGO could not be exceeded. The obtained nanomaterial was analyzed using powder X-ray

• diffraction (P-XRD). The P-XRD pattern shows the reflexes for hexagonal nickel (Figure 1). TEM images show spherical nickel nanoparticles, which are supported on top of rGO (Figure 2). The particles have a size of 25 ± 5 nm. All nanoparticles are supported on rGO. The particle size of Ni@rGO increased in

ZnO and MXenes as electrode materials for supercapacitor devices

• Ameen Uddin Ammar,
• Ipek Deniz Yildirim,
• Feray Bakan and
• Emre Erdem

Beilstein J. Nanotechnol. 2021, 12, 49–57, doi:10.3762/bjnano.12.4

• tantalum carbide MXene sheets was carried out using X-ray diffraction measurements (XRD), field-emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), and Raman spectroscopy. The results of XRD, FE-SEM, and Raman showed that tantalum carbide MXenes are layered solid

Atomic layer deposited films of Al₂O₃ on fluorine-doped tin oxide electrodes: stability and barrier properties

• Hana Krýsová,
• Michael Neumann-Spallart,
• Hana Tarábková,
• Pavel Janda,
• Ladislav Kavan and
• Josef Krýsa

Beilstein J. Nanotechnol. 2021, 12, 24–34, doi:10.3762/bjnano.12.2

• current (on the order of 0.01 mA/cm2). Hence, this current is mainly assigned to water reduction. This mechanism is still unclear at this stage of our research. X-ray diffraction patterns of unprotected FTO layers, polarized for 1 and 5 h, are shown in Figure S9 (Supporting Information File 1). Upon

Free and partially encapsulated manganese ferrite nanoparticles in multiwall carbon nanotubes

• Saja Al-Khabouri,
• Salim Al-Harthi,
• Toru Maekawa,
• Mohamed E. Elzain,
• Ashraf Al-Hinai,
• Ahmed D. Al-Rawas,
• Abbsher M. Gismelseed,
• Ali A. Yousif and
• Myo Tay Zar Myint

Beilstein J. Nanotechnol. 2020, 11, 1891–1904, doi:10.3762/bjnano.11.170

• manganese ferrite nanoparticles inside the tubes is observed as a shift in the X-ray diffraction peaks and as an increase in stress, hyperfine field, and coercivity when compared to free manganese ferrite nanoparticles. On the other hand, a strong charge transfer from the multiwall carbon nanotubes is

• , and Mössbauer characterization The X-ray diffraction patterns were acquired using Cu Kα radiation (λ = 1.5404 Å) at a Philips PW1820 diffractometer. The instrument was calibrated using a silicon disc. Free manganese ferrite nanoparticles were characterized using high-resolution transmission electron

• analysis. The analysis was carried out to obtain the crystallite size and lattice parameters. For that, a pseudo-Voigt peak-shape profile was used in which an iterative least-square procedure was adopted through the minimization of the residual parameters [13]. X-ray diffraction data (Figure 1a) confirmed

Piezotronic effect in AlGaN/AlN/GaN heterojunction nanowires used as a flexible strain sensor

• Jianqi Dong,
• Liang Chen,
• Yuqing Yang and
• Xingfu Wang

Beilstein J. Nanotechnol. 2020, 11, 1847–1853, doi:10.3762/bjnano.11.166

• (right panel). It can be seen that there is a clear dividing line (ultrathin AlN layer) between AlGaN and GaN. An interplanar spacing of 0.52 nm was measured in the GaN layer along the [2] direction. Furthermore, an X-ray diffraction (XRD) scan of the epitaxial structure is shown in Figure 1c. The full

Nanocasting synthesis of BiFeO₃ nanoparticles with enhanced visible-light photocatalytic activity

• Thomas Cadenbach,
• Maria J. Benitez,
• A. Lucia Morales,
• Cesar Costa Vera,
• Luis Lascano,
• Francisco Quiroz,
• Alexis Debut and
• Karla Vizuete

Beilstein J. Nanotechnol. 2020, 11, 1822–1833, doi:10.3762/bjnano.11.164

• analyze the BiFeO3 nanomaterial are powder X-ray diffraction (XRD), transmission electron microscopy (TEM) and UV–visible reflectance spectroscopy. Furthermore, we investigated the photocatalytic efficiency of this nanomaterial under visible light in the degradation of rhodamine B (RhB) as a model

• channels of the mesoporus silica host are still intact (Figure S6, Supporting Information File 1). Figure 4 shows the X-ray diffraction pattern at room temperature of the powdered BiFeO3 sample after the removal of the silica matrix. The XRD diffraction pattern indicates the formation of the pure-phase

• mixture by means of centrifugation, washed once with distilled water, dried and reapplied in the next degradation experiment using a fresh RhB solution. After the last catalytic experiment, the catalyst was analyzed again by X-ray diffraction (see Figure S7 in the Supporting Information File 1). The