Nanoarchitectonics of the cathode to improve the reversibility of Li–O₂ batteries

• Hien Thi Thu Pham,
• Jonghyeok Yun,
• So Yeun Kim,
• Sang A Han,
• Jung Ho Kim,
• Jong-Won Lee and
• Min-Sik Park

Beilstein J. Nanotechnol. 2022, 13, 689–698, doi:10.3762/bjnano.13.61

• , and Zn1Co4 particles grown on CNT frameworks, respectively. Field-emission scanning electron microscopy (FESEM) observations confirmed that abundant rhombic dodecahedral ZnxCoy particles with different Zn/Co ratios were successfully integrated into the CNTs. Corresponding energy-dispersive X-ray

• atmosphere, the ZnxCoy–C/CNT composite was obtained and further chemically etched with 1 M of H2SO4 solution before use. Material characterization Field-emission scanning electron microscopy (JEOL, JSM-7000F) and high-resolution TEM (HRTEM, JEOL, JEM-2100F) with EDS were used to examine the morphologies and

Sodium doping in brookite TiO₂ enhances its photocatalytic activity

• Boxiang Zhuang,
• Honglong Shi,
• Honglei Zhang and
• Zeqian Zhang

Beilstein J. Nanotechnol. 2022, 13, 599–609, doi:10.3762/bjnano.13.52

• ]. The morphology and the chemical composition of the products were characterized by a field-emission scanning electron microscope (Hitachi S-4800) equipped with an energy-dispersive X-ray spectroscope working at 10 kV and 10 μA. Samples were dispersed into ethyl alcohol and then sprayed on a silicon

Influence of thickness and morphology of MoS₂ on the performance of counter electrodes in dye-sensitized solar cells

• Lam Thuy Thi Mai,
• Hai Viet Le,
• Ngan Kim Thi Nguyen,
• Van La Tran Pham,
• Thu Anh Thi Nguyen,
• Nguyen Thanh Le Huynh and
• Hoang Thai Nguyen

Beilstein J. Nanotechnol. 2022, 13, 528–537, doi:10.3762/bjnano.13.44

• performed on a LabRAM HR 800 Raman Spectrometer (HORIBA Jobin Yvon) with an excitation laser source at 532 nm. The morphology of MoS2 thin films was analyzed by an ultrahigh-resolution field-emission scanning electron microscope (FE-SEM, Hitachi SU-8010, Japan). The electrochemical catalytic activity of the

Investigation of electron-induced cross-linking of self-assembled monolayers by scanning tunneling microscopy

• Patrick Stohmann,
• Sascha Koch,
• Yang Yang,
• Christopher David Kaiser,
• Julian Ehrens,
• Jürgen Schnack,
• Niklas Biere,
• Dario Anselmetti,
• Armin Gölzhäuser and
• Xianghui Zhang

Beilstein J. Nanotechnol. 2022, 13, 462–471, doi:10.3762/bjnano.13.39

• by the rastering electron beam of an SEM, where the kinetic energy of the electrons was set to 1 keV. The SEM used is a modified type of a UHV Zeiss Standard Gemini with a Schottky-type thermal field emission source (ZrO/W). The pressure in the SEM column was ≈10−8 mbar. Prior to each experiment, the

A non-enzymatic electrochemical hydrogen peroxide sensor based on copper oxide nanostructures

• Irena Mihailova,
• Vjaceslavs Gerbreders,
• Marina Krasovska,
• Eriks Sledevskis,
• Valdis Mizers,
• Andrejs Bulanovs and
• Andrejs Ogurcovs

Beilstein J. Nanotechnol. 2022, 13, 424–436, doi:10.3762/bjnano.13.35

• nanostructures were obtained by a one-step hydrothermal oxidation method. The resulting coating is uniform and dense and shows good adhesion to the wire surface. Structure, surface, and composition of the obtained samples were studied using field-emission scanning electron microscopy along with energy-dispersive

• of the nanostructured CuO samples was studied via field-emission scanning electron microscopy (FESEM, Tescan MAIA 3). The chemical composition analysis was performed via energy-dispersive spectroscopy (EDS, Inca Synergy) integrated into the FESEM system. The crystalline structure of the samples was

Interfacial nanoarchitectonics for ZIF-8 membranes with enhanced gas separation

• Season S. Chen,
• Zhen-Jie Yang,
• Chia-Hao Chang,
• Hoong-Uei Koh,
• Sameerah I. Al-Saeedi,
• Kuo-Lun Tung and
• Kevin C.-W. Wu

Beilstein J. Nanotechnol. 2022, 13, 313–324, doi:10.3762/bjnano.13.26

• optimal ZIF-8 membranes, three reaction parameters were investigated, namely, reaction temperature, reaction time, and concentration of the organic linker (i.e., 2-methylimidazole). The growth of ZIF-8 membranes under various parameters was evaluated by field-emission scanning electron microscopy, and the

Effects of drug concentration and PLGA addition on the properties of electrospun ampicillin trihydrate-loaded PLA nanofibers

• Tuğba Eren Böncü and
• Nurten Ozdemir

Beilstein J. Nanotechnol. 2022, 13, 245–254, doi:10.3762/bjnano.13.19

• a scanning electron microscope (QUANTA 400F Field Emission SEM, Holland). The average diameters of the resulting nanofibers were calculated by the measurement of 100 single nanofibers from SEM images using the ImageJ analysis software (National Institutes of Health, USA). Mechanical properties The

Design aspects of Bi₂Sr₂CaCu₂O_8+δ THz sources: optimization of thermal and radiative properties

• Mikhail M. Krasnov,
• Natalia D. Novikova,
• Roger Cattaneo,
• Alexey A. Kalenyuk and
• Vladimir M. Krasnov

Beilstein J. Nanotechnol. 2021, 12, 1392–1403, doi:10.3762/bjnano.12.103

• mesa. Such configuration is relevant for large mesas, contacted by a bonding wire [9]. Remarkably, the far-field emission is larger, Emax = 0.19 V/m, in the absence of the electrode. This clearly shows that the electrode on top of the crystal does not help in impedance matching. To the contrary, it

Enhancement of the piezoelectric coefficient in PVDF-TrFe/CoFe₂O₄ nanocomposites through DC magnetic poling

• Marco Fortunato,
• Alessio Tamburrano,
• Maria Paola Bracciale,
• Maria Laura Santarelli and
• Maria Sabrina Sarto

Beilstein J. Nanotechnol. 2021, 12, 1262–1270, doi:10.3762/bjnano.12.93

• verify the presence of the aggregates of the CoFe2O4 we investigated the morphology of the CoFe2O4 nanoparticles (Figure 5a) and of the PVDF-TrFe/CoFe2O4 nanocomposites (Figure 5b) using field-emission scanning electron microscopy (FESEM). As shown in Figure 5b, the morphology of the produced

• °C and a DC magnetic field was applied through a ferromagnetic core (Figure 8). The morphology of the PVDF-TrFe/CoFe2O4 nanocomposite thin films was investigated using a field-emission scanning electron microscope (FESEM, Auriga, Carl Zeiss) operated with an accelerating voltage of 5 kV. Chemical

Morphology-driven gas sensing by fabricated fractals: A review

• Vishal Kamathe and
• Rupali Nagar

Beilstein J. Nanotechnol. 2021, 12, 1187–1208, doi:10.3762/bjnano.12.88

• excellent as compared to monoclinic bismuth vanadate (m-BiVO4) at room temperature owing to the hyperbranched structure and high surface area. Figure 19a–c shows field-emission SEM (FESEM) images of hyperbranched m-BiVO4, a single hyperbranch of h-BiVO4, and a trunk of h-BiVO4. Recently, Bai et al. used

Local stiffness and work function variations of hexagonal boron nitride on Cu(111)

• Abhishek Grewal,
• Yuqi Wang,
• Matthias Münks,
• Klaus Kern and
• Markus Ternes

Beilstein J. Nanotechnol. 2021, 12, 559–565, doi:10.3762/bjnano.12.46

• for atomic and molecular adsorbates owing to its local electronic trapping potential due to the in-plane electric field. We obtain work function (Φ) variations on the h-BN/Cu(111) superstructure of the order of 100 meV using two independent methods, namely the shift of field emission resonances and

• based on a shift of the field emission resonance (FER) induced by Φ variations. The effective potential well of depth Φ at the surface of a metal can accommodate a series of Rydberg states, extending a few angstroms into the vacuum above the metal surface [43]. These image potential states (IPSs

On the stability of microwave-fabricated SERS substrates – chemical and morphological considerations

• Limin Wang,
• Aisha Adebola Womiloju,
• Christiane Höppener,
• Ulrich S. Schubert and
• Stephanie Hoeppener

Beilstein J. Nanotechnol. 2021, 12, 541–551, doi:10.3762/bjnano.12.44

• carbon tape. To improve the contrast and to reduce the potential charging effect, the samples were sputter-coated with platinum (Pt) with a coating thickness of 4 nm. The SEM imaging was performed with a field-emission scanning electron microscope (Sigma VP, Carl Zeiss AG, Jena, Germany) at an

The nanomorphology of cell surfaces of adhered osteoblasts

• Christian Voelkner,
• Mirco Wendt,
• Regina Lange,
• Max Ulbrich,
• Martina Gruening,
• Susanne Staehlke,
• Barbara Nebe,
• Ingo Barke and
• Sylvia Speller

Beilstein J. Nanotechnol. 2021, 12, 242–256, doi:10.3762/bjnano.12.20

• room temperature. Measurement principle and data preparation Scanning electron microscopy (SEM) was performed using a field-emission SEM (Gemini Supra 25, Zeiss) at 1 keV electron energy without Au coating. For SICM a commercial AFM/SICM setup (NX-bio, Park Systems, Korea) with a live-cell chamber (5

Scanning transmission helium ion microscopy on carbon nanomembranes

• Daniel Emmrich,
• Annalena Wolff,
• Nikolaus Meyerbröker,
• Jörg K. N. Lindner,
• André Beyer and
• Armin Gölzhäuser

Beilstein J. Nanotechnol. 2021, 12, 222–231, doi:10.3762/bjnano.12.18

• photoelectron emission angle of 13° with respect to the surface normal. Energy-filtered transmission electron microscopy was conducted at energies of 60 and 80 keV on a Cs-corrected JEOL JEM-ARM200F equipped with a cold field emission gun. A GATAN GIF-Quantum ER image filter and a 2k × 2k CCD camera (GATAN

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

Bio-imaging with the helium-ion microscope: A review

• Matthias Schmidt,
• James M. Byrne and
• Ilari J. Maasilta

Beilstein J. Nanotechnol. 2021, 12, 1–23, doi:10.3762/bjnano.12.1

• resembles a field-emission scanning electron microscope (FE-SEM), but the use of helium ions rather than electrons provides several advantages, including higher surface sensitivity, larger depth of field, and a straightforward charge-compensating electron flood gun, which enables imaging of non-conductive

• opportunity for further developments. On the one hand, it is as flexible and straightforward to use as a scanning electron microscope (SEM) but with a five times larger depth of field [1] and a lateral resolution of about 0.5 nm [4] (demonstrated record: 0.24 nm [5]), which is between high-end field-emission

• milling and imaging. Plant imaging was done on the model species Arabidopsis thaliana. The HIM images of the uncoated cuticle samples showed fine textures and minute ridges not discernible in the low-voltage field-emission SEM images of the same samples. Arabidopsis samples were also HIM-imaged by Curtin

Oxidation of Au/Ag films by oxygen plasma: phase separation and generation of nanoporosity

• Abdel-Aziz El Mel,
• Said A. Mansour,
• Mujaheed Pasha,
• Atef Zekri,
• Janarthanan Ponraj,
• Akshath Shetty and
• Yousef Haik

Beilstein J. Nanotechnol. 2020, 11, 1608–1614, doi:10.3762/bjnano.11.143

• current of the X-ray generator were set to 45 kV and 40 mA, respectively. The signal was collected between 20° and 90° with a step size of 0.02° and at a speed of 1 deg/min. STEM and STEM-EDS were performed on a TALOS (FEI, Hillsboro, Oregon, USA) field emission gun transmission electron microscope

Walking energy harvesting and self-powered tracking system based on triboelectric nanogenerators

• Mingliang Yao,
• Guangzhong Xie,
• Qichen Gong and
• Yuanjie Su

Beilstein J. Nanotechnol. 2020, 11, 1590–1595, doi:10.3762/bjnano.11.141

• the electrode as an output terminal. Characterization and electrical measurement of the u-TENG Field-emission scanning electron microscopy (FESEM, Hitachi SU-8020) was used to characterize the surface morphology of the modified PTFE film. A Stanford Research Systems equipment was used to measure the

Structure and electrochemical performance of electrospun-ordered porous carbon/graphene composite nanofibers

• Yi Wang,
• Yanhua Song,
• Chengwei Ye and
• Lan Xu

Beilstein J. Nanotechnol. 2020, 11, 1280–1290, doi:10.3762/bjnano.11.112

• electron microscopy (SEM) under a field-emission scanning electron microscope (FE-SEM) (Hitachi, S4800, Japan). The structural characteristics of the CNFs were observed via transmission electron microscopy (TEM) (FEI, Tecnai G20, Japan). The diameter values of the CNFs were measured using ImageJ software

Ultrasensitive detection of cadmium ions using a microcantilever-based piezoresistive sensor for groundwater

• Dinesh Rotake,
• Anand Darji and
• Nitin Kale

Beilstein J. Nanotechnol. 2020, 11, 1242–1253, doi:10.3762/bjnano.11.108

• ) LOD, which is well below the WHO limit for cadmium ions. The paper describes the methodology, the formation of SAMs and their characterization using field-emission scanning electron microscopy (FESEM), the use of the portable experimental platform with the MEMS-based piezoresistive device to selective

Magnetic-field-assisted synthesis of anisotropic iron oxide particles: Effect of pH

• Andrey V. Shibaev,
• Petr V. Shvets,
• Darya E. Kessel,
• Roman A. Kamyshinsky,
• Anton S. Orekhov,
• Sergey S. Abramchuk,
• Alexei R. Khokhlov and
• Olga E. Philippova

Beilstein J. Nanotechnol. 2020, 11, 1230–1241, doi:10.3762/bjnano.11.107

• scanning TEM (STEM). The specimens were examined under a TITAN 80-300 microscope (FEI, USA) equipped with a Schottky field emission gun, a spherical aberration corrector (Cs probe corrector), a direct detection camera (Falcon II, FEI, USA), and an EDX spectroscopy system (EDAX, USA). The TEM was operated

3D superconducting hollow nanowires with tailored diameters grown by focused He⁺ beam direct writing

• Rosa Córdoba,
• Alfonso Ibarra,
• Dominique Mailly,
• Isabel Guillamón,
• Hermann Suderow and
• José María De Teresa

Beilstein J. Nanotechnol. 2020, 11, 1198–1206, doi:10.3762/bjnano.11.104

• operated at 300 kV and equipped with a high-brightness X-FEG and a CETCOR Cs corrector for the condenser system to provide sub-angstrom probe size. STEM high-angle annular dark-field (HAADF) tomography was performed using a Thermo Fisher Tecnai field-emission gun operated at 300 kV. The angular range for

Highly sensitive detection of estradiol by a SERS sensor based on TiO₂ covered with gold nanoparticles

• Andrea Brognara,
• Ili F. Mohamad Ali Nasri,
• Beatrice R. Bricchi,
• Andrea Li Bassi,
• Caroline Gauchotte-Lindsay,
• Matteo Ghidelli and
• Nathalie Lidgi-Guigui

Beilstein J. Nanotechnol. 2020, 11, 1026–1035, doi:10.3762/bjnano.11.87

• . The thermal treatment was carried out to induce both crystallization of the as-deposited amorphous TiO2 into the anatase phase (as discussed in [28][29]) and the formation of AuNPs exploiting dewetting of the Au films. A field-emission scanning electron microscope (FEG-SEM, Zeiss Supra 40) was used to

Microwave-induced electric discharges on metal particles for the synthesis of inorganic nanomaterials under solvent-free conditions

• Vijay Tripathi,
• Harit Kumar,
• Anubhav Agarwal and
• Leela S. Panchakarla

Beilstein J. Nanotechnol. 2020, 11, 1019–1025, doi:10.3762/bjnano.11.86

• supernatant solution is collected for further characterization. Characterization of products The reaction products are characterized by X-ray diffraction (PANanalytical X’pert PRO), field-emission scanning electron microscopy (JEOL JSM 7600F, combined with energy-dispersive spectroscopy (EDS)), transmission

Wet-spinning of magneto-responsive helical chitosan microfibers

• Dorothea Brüggemann,
• Johanna Michel,
• Naiana Suter,
• Matheus Grande de Aguiar and
• Michael Maas

Beilstein J. Nanotechnol. 2020, 11, 991–999, doi:10.3762/bjnano.11.83

• scanning electron microscope (SEM) using a Zeiss Supra 40 field-emission device (Carl Zeiss, Oberkochen, Germany) at an acceleration voltage of 3 kV. Prior to SEM analysis, dried fibers were sputter-coated with a 7 nm gold layer using a Bal-Tec SCD 005 sputter system (Leica Microsystems, Wetzlar, Germany