Towards 3D self-assembled rolled multiwall carbon nanotube structures by spontaneous peel off

• Jonathan Quinson

Beilstein J. Nanotechnol. 2020, 11, 1865–1872, doi:10.3762/bjnano.11.168

• forest, structures compatible with relatively large nanoparticles (approx. 100 nm) are identified. These are attributed to Fe metal catalysts formed during the synthesis and from which MWCNTs grow, assuming a root-growth mechanism [16][26]. For N1/C2 structures, it is not straightforward to observe the

• same structures at the bottom of the CNT forest, although clear structures related to Fe nanoparticles are observed at the N1/C2 interface (see discussion below Figure 4). This confirms that creating a N1/C2 interface is challenging. It is established that the inner diameter of MWCNTs increases with

• correspond well to the lighter features observed in SEM micrographs (Supporting Information File 1, Figure S1 and Figure S2). These features are related to iron-based nanoparticles, as confirmed by EDS. An area with higher intensity of Fe is observed at the interface of a N1/C2 structure (Figure 5e) as

Unravelling the interfacial interaction in mesoporous SiO₂@nickel phyllosilicate/TiO₂ core–shell nanostructures for photocatalytic activity

• Bridget K. Mutuma,
• Xiluva Mathebula,
• Isaac Nongwe,
• Bonakele P. Mtolo,
• Boitumelo J. Matsoso,
• Rudolph Erasmus,
• Zikhona Tetana and
• Neil J. Coville

Beilstein J. Nanotechnol. 2020, 11, 1834–1846, doi:10.3762/bjnano.11.165

• , the electron–hole recombination can be inhibited by loading metals, such as Ni [12], V, Fe [13], Ag [14], and Cu–Ni [15], on the TiO2 surface, which accelerates the formation of hydroxyl radicals and, consequently, improves the photocatalytic activity of TiO2. In contrast, the doping of TiO2 with

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

• synthesis of pure-phase BiFeO3 is the in situ formation of Fe/Bi mixed metal complexes by using different complexing agents such as carboxylic acids. During the calcination process the carboxylate ligands in the Fe/Bi complexes decompose to CO2 and BiFeO3 is formed [29]. This synthetic technique requires

• BiFeO3. Bismuth nitrate pentahydrate Bi(NO3)3·5H2O, ferric nitrate nonahydrate Fe(NO3)3·9H2O, concentrated nitric acid (HNO3, 69%), triblock copolymer poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) (Pluronic P123, Mav = 5800, EO20PO70EO20), tetraethylorthosilicate (TEOS

• -15 in Supporting Information File 1. The influence of different complexing agents was investigated using slightly acidified H2O as a solvent. In a typical experiment, 1.010 g (2.5 mmol) of Fe(NO3)3·9H2O, 1.249 g (2.58 mmol) of Bi(NO3)3·5H2O, and 2.5 mmol of the respective organic acid were dissolved

Self-standing heterostructured NiC_x-NiFe-NC/biochar as a highly efficient cathode for lithium–oxygen batteries

• Shengyu Jing,
• Xu Gong,
• Shan Ji,
• Linhui Jia,
• Bruno G. Pollet,
• Sheng Yan and
• Huagen Liang

Beilstein J. Nanotechnol. 2020, 11, 1809–1821, doi:10.3762/bjnano.11.163

• +/Li. Results and Discussion The overall process of synthesizing NiFe-PBA/PP-T is schematically illustrated in Figure 1. Initially, the freshly cut pomelo peel was mixed with Na3C6H5O7, Ni(NO3)2, and K3[Fe(CN)6] to form bimetallic Prussian blue analogues with a MOF structure at room temperature. Ni3[Fe

• (CN)6]2 precipitate was formed when Ni(NO3)2 and K3[Fe(CN)6] were mixed. During the formation of Ni3[Fe(CN)6]2, Ni ions and N atoms from the hexacyanoferrate [Fe(CN)6]3− cross-link, which results in the formation of a three-dimensional and cubic framework with abundant Ni, Fe, N, and C within the

• structure. As shown in the inset of Figure 2d, the main diffraction peaks of the Ni–Fe PBA precursor are consistent with the standard patterns of Ni3[Fe(CN)6]2 (JCPDS: 51-1897). During a hydrothermal pretreatment, the ion-exchange reaction of OH−/[Fe(CN)6]3− occurred at the interface between NiFe-PBA cubes

Helium ion microscope – secondary ion mass spectrometry for geological materials

• Matthew R. Ball,
• Richard J. M. Taylor,
• Joshua F. Einsle,
• Fouzia Khanom,
• Christelle Guillermier and
• Richard J. Harrison

Beilstein J. Nanotechnol. 2020, 11, 1504–1515, doi:10.3762/bjnano.11.133

• mica and the HIM–SIMS signal from a subregion of the same sample. Both isotopes of Li can be clearly seen in HIM–SIMS where no Li signal can be detected above background noise in the SEM–EDS data. The Fe signal is also shown, which should be inversely proportional to the Li signal as Fe and Li

• electron image of the region of interest. The red square shows the region mapped using HIM–SIMS; b) Li EDS map of the region shown in a); c) Fe EDS map of the region shown in a); d) 6Li map of the region within the red square in a) using HIM–SIMS; e) 7Li map of the region within the red square in a) using

One-step synthesis of carbon-supported electrocatalysts

• Sebastian Tigges,
• Nicolas Wöhrl,
• Ivan Radev,
• Ulrich Hagemann,
• Markus Heidelmann,
• Thai Binh Nguyen,
• Stanislav Gorelkov,
• Stephan Schulz and
• Axel Lorke

Beilstein J. Nanotechnol. 2020, 11, 1419–1431, doi:10.3762/bjnano.11.126

• electrocatalysts currently. The presented synthesis method can be generalized for the deposition of many other metal/CNW hybrids by choosing the appropriate metal acetylacetonate. We have successfully used Al(acac)3 [17] and Pd(acac)2 as precursors, while others have demonstrated the use of Fe(acac)3 in a chemical

Transient coating of γ-Fe₂O₃ nanoparticles with glutamate for its delivery to and removal from brain nerve terminals

• Konstantin Paliienko,
• Artem Pastukhov,
• Michal Babič,
• Daniel Horák,
• Olga Vasylchenko and
• Tatiana Borisova

Beilstein J. Nanotechnol. 2020, 11, 1381–1393, doi:10.3762/bjnano.11.122

• Synthesis of superparamagnetic maghemite (γ-Fe2O3) nanoparticles γ-Fe2O3 nanoparticles were synthesized and characterized according to [21]. A 0.5 M solution of NH4OH (subaliquot amount needed for quantitative formation of Fe(OH)3) was added dropwise to a 0.5 M aqueous solution of FeCl3 under sonication

• (450 Digital Sonifier; Branson Ultrasonics, Danbury, CT, USA) at room temperature. Consequently, an aqueous 0.2 M solution of FeCl2 was added under the same conditions dropwise to Fe(OH)3 preformed in the first step. The mixture was then poured directly into 0.5 M NH4OH under nitrogen flushing and

• ]glutamate adsorption. However, uptake and ambient level results were not adequate. Based on the literature data that carboxylic acids adsorbed on the oxide surface form a chelate-type bonds involving Fe(III) surface species and a carboxylate group [24], it was suggested that certain components of 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

• the preparation process of the ordered porous CGCNFs. Setup scheme adapted from [33], distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). FE-SEM images of (a) disordered PGCNFs synthesized via electrospinning

Proximity effect in [Nb(1.5 nm)/Fe(x)]₁₀/Nb(50 nm) superconductor/ferromagnet heterostructures

• Yury Khaydukov,
• Sabine Pütter,
• Laura Guasco,
• Roman Morari,
• Gideok Kim,
• Thomas Keller,
• Anatolie Sidorenko and
• Bernhard Keimer

Beilstein J. Nanotechnol. 2020, 11, 1254–1263, doi:10.3762/bjnano.11.109

• Nanotechnologies ASM, MD2028 Kishinev, Moldova 10.3762/bjnano.11.109 Abstract We have investigated the structural, magnetic and superconduction properties of [Nb(1.5 nm)/Fe(x)]10 superlattices deposited on a thick Nb(50 nm) layer. Our investigation showed that the Nb(50 nm) layer grows epitaxially at 800 °C on

• the Al2O3(1−102) substrate. Samples grown at this condition possess a high residual resistivity ratio of 15–20. By using neutron reflectometry we show that Fe/Nb superlattices with x < 4 nm form a depth-modulated FeNb alloy with concentration of iron varying between 60% and 90%. This alloy has weak

• the thickness of the Fe layer to x = 4 nm the intermediate phase disappears. We attribute the intermediate state to proximity induced non-homogeneous superconductivity in the structure. Keywords: ferromagnet; iron (Fe); mixed state; neutron reflectometry; niobium (Nb); proximity effects

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

• region of the sample where rod-like objects are present. The results demonstrate that the ratio of Fe to O atoms is equal to ≈0.78, supporting the formation of magnetite during the synthesis process (Supporting Information File 1, Figure S1 and Table S1). In order to get deeper insight into the

Applications of superparamagnetic iron oxide nanoparticles in drug and therapeutic delivery, and biotechnological advancements

• Maria Suciu,
• Corina M. Ionescu,
• Alexandra Ciorita,
• Septimiu C. Tripon,
• Dragos Nica,
• Hani Al-Salami and
• Lucian Barbu-Tudoran

Beilstein J. Nanotechnol. 2020, 11, 1092–1109, doi:10.3762/bjnano.11.94

• at a concentration of 400 µg Fe/mL, in contrast to the PEG-coated SPIONs, which reached 50% toxicity at 100 µg Fe/mL. Dextran was shown to get stripped from the nanoparticles in macrophages that were later apoptotic. The authors concluded that apoptosis was caused first by dextran intoxication and

• kept for storage similar to the Fe collected from dead red blood cells. This can only happen up to the maximum capacity of the spleen [67]. Studying the diffusion of SPIONs in the brain for MRI, Wang and collaborators [128] showed that dextran-coated SPIONs (20 nm) have a good dispersion in the

• that starch-coated SPIONs (BNF-starch) were taken up by human adipose tissue-derived stem cells in a dose-dependent manner. After 24 h these SPIONs ended up in lysosomes where they were degraded to Fe ions. Arbab and collaborators [129] attempted to find out the necessary lysosomal pH value for the

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

• treatment of metals under microwave irradiation in organic solvents can carbonize the organic solvents forming carbon-coated metallic nanoparticles [15][16]. Recently, Pentsak et al. have shown that metals, such as Cu, Fe, and Mo, on carbon form nanometer-scale structures under microwave heating [17

Gas-sensing features of nanostructured tellurium thin films

• Dumitru Tsiulyanu

Beilstein J. Nanotechnol. 2020, 11, 1010–1018, doi:10.3762/bjnano.11.85

• performed using a DRONE–YM1 (Burevestnik, Russia) diffractometer with Fe Kα radiation. The rotational velocity of the scintillation counter was set to be either 2 or 4°/min. For the electrical and gas-sensing characterization, the samples were supplied with symmetrical gold or platinum electrodes

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

• distributed Fe3O4/Gd2O3 nanocubes for T1–T2 dual-mode MRI contrast agents were successfully designed and synthesized. In order to increase hydrophilicity and biocompatibility, the nanocubes were coated with nontoxic 3,4-dihydroxyhydrocinnamic acid (DHCA). The results show that iron (Fe) and gadolinium (Gd

• imaging (T1WI) and T2-weighted imaging (T2WI) were performed in Sprague Dawley (SD) rats. After intravenous injection of a 0.8 mg Fe/kg dose, FGDA nanocubes spread systemically through the bloodstream. The lumbar muscle was chosen as the MRI region of interest and the signal-to-noise ratio (ΔSNR) was

•  5d). Taken together these results show that the FGDA nanocubes can be used as a T1–T2 dual-mode contrast agent for in vivo MRI. Toxicity of FGDA nanocubes in vivo Two weeks after the rats received the intravenous injection containing 2 mg Fe/kg FGDA nanocubes, their organs were harvested, fixed and

Epitaxial growth and superconducting properties of thin-film PdFe/VN and VN/PdFe bilayers on MgO(001) substrates

• Wael M. Mohammed,
• Igor V. Yanilkin,
• Amir I. Gumarov,
• Airat G. Kiiamov,
• Roman V. Yusupov and
• Lenar R. Tagirov

Beilstein J. Nanotechnol. 2020, 11, 807–813, doi:10.3762/bjnano.11.65

• analysis system. The VN layers were reactively magnetron sputtered from a metallic vanadium target in Ar/N2 plasma, while the Pd1−xFex layers were deposited by co-evaporation of metallic Pd and Fe pellets from calibrated effusion cells in a molecular beam epitaxy chamber. The VN stoichiometry and Pd1−xFex

• ) and Fe (99.97% purity, ChemPur GmbH, Germany) were co-evaporated from the pre-calibrated high-temperature effusion cells to obtain the desired Pd1−xFex composition. Vanadium nitride layers were synthesized by using reactive DC magnetron sputtering (MS) in the UHV chamber with a base pressure of p ≤ 5

• ). Figure 3a,b shows the XPS spectra of the as-deposited VN/Pd0.92Fe0.08 thin film heterostructure. The binding energies of the Fe 2p1/2, Fe 2p3/2, and Pd 3d3/2 and Pd 3d5/2 states are 721.0, 707.7, and 340.2 and 335.0 eV, respectively, which agrees well with literature data [33][36]. Figure 3c,d shows the

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

• structures were observed using a field emission scanning electron microscope (FE-SEM, FEI, Tecnai G2 F30). The elemental composition and valence distribution of the film were measured by X-ray photoelectron spectroscopy (XPS, Thermo Fisher Scientific, ESCALAB 250Xi). The photoluminescence (PL) intensity of

Observation of unexpected uniaxial magnetic anisotropy in La_2/3Sr_1/3MnO₃ films by a BaTiO₃ overlayer in an artificial multiferroic bilayer

• John E. Ordóñez,
• Lorena Marín,
• Luis A. Rodríguez,
• Pedro A. Algarabel,
• José A. Pardo,
• Roger Guzmán,
• Luis Morellón,
• César Magén,
• Etienne Snoeck,
• María E. Gómez and
• Manuel R. Ibarra

Beilstein J. Nanotechnol. 2020, 11, 651–661, doi:10.3762/bjnano.11.51

• ., ferromagnetic (FM) for LSMO and ferroelectric (FE) for BTO, and BTO/LSMO heterostructures have exhibited magnetoelectric coupling (MEC) [6][7][8]. They constitute a type of artificial hybrid multiferroic material that can be employed to build the next-generation sensors, multiple-state memory elements, magnetic

• magnetic anisotropy is artificially induced in LSMO films grown on ferroelectric BiFeO3 substrate when the polarization of the FE domains is switched to highly aligned stripe domains, inducing a magnetic easy axis in the FM layer parallel to the polarization direction [32][33]. In all aforementioned cases

• , the magnetic anisotropy of LSMO is also affected either by a non-FE or FE substrate on which it is deposited. However, an open question remains about how the presence of a FE-BTO layer grown on top of an FM-LSMO film can alter its magnetic properties. This is a key point that needs to be evaluated to

Comparison of fresh and aged lithium iron phosphate cathodes using a tailored electrochemical strain microscopy technique

• Matthias Simolka,
• Hanno Kaess and
• Kaspar Andreas Friedrich

Beilstein J. Nanotechnol. 2020, 11, 583–596, doi:10.3762/bjnano.11.46

• the assumed decrease of the electrochemical activity, suggested by the reduction of the ESM signal intensity. In former studies of LFP degradation, the main effect observed was iron dissolution and Fe2+ migration to the anode and redeposition. Fe particles on the anode play a decisive role in

• accelerated SEI formation [9][69][70]. Iron dissolution from LFP has been found to increase with water content of the electrolyte and phase impurities in the cathode. The dissolution of iron leads to Fe-deficient inactive phases. The aged cathode showed a higher Fe content on the cathode surface and lower Fe

• content in the cross-section (Fe mass content fresh: 32.1 ± 0.3% and aged: 27.8 ± 0.8%), indicating iron dissolution from the bulk material [71]. Another factor influencing the ESM signal is the structure of the material. Chen et al. observed a dependency of the crystallinity of LFP on the ESM signal and

Luminescent gold nanoclusters for bioimaging applications

• Nonappa

Beilstein J. Nanotechnol. 2020, 11, 533–546, doi:10.3762/bjnano.11.42

• ], copyright 2010 The Royal Society of Chemistry. Figure panels 7D and 7F–H are reused, and panel 7E is adapted with permission from [99], copyright 2018 The Royal Society of Chemistry. A) Principle of Aβ/copper and ascorbate- or Fe(II)-catalyzed formation of AuNCs. B) Illustration of fluorescence biomarking

Synthesis and enhanced photocatalytic performance of 0D/2D CuO/tourmaline composite photocatalysts

• Changqiang Yu,
• Min Wen,
• Zhen Tong,
• Shuhua Li,
• Yanhong Yin,
• Xianbin Liu,
• Yesheng Li,
• Tongxiang Liang,
• Ziping Wu and
• Dionysios D. Dionysiou

Beilstein J. Nanotechnol. 2020, 11, 407–416, doi:10.3762/bjnano.11.31

• spectroscopy. As shown in Figure 2, three bands appeared at 3487 cm−1, 3554 cm−1, and 3635 cm−1 resulting from the vibration of the three OH groups in tourmaline [2]. The bending vibration of the Si–O group was detected at 488 cm−1 [27]. The band at 649 cm−1 was due to the RIV–O (R = Al, Fe, Mg, Mn) stretching

Understanding nanoparticle flow with a new in vitro experimental and computational approach using hydrogel channels

• Armel Boutchuen,
• Dell Zimmerman,
• Abdollah Arabshahi,
• John Melnyczuk and
• Soubantika Palchoudhury

Beilstein J. Nanotechnol. 2020, 11, 296–309, doi:10.3762/bjnano.11.22

• mechanisms dominating the NP flow. The mass loss percentage and hence the binding of the NPs increased with NP size following a reliable linear correlation (R = 0.98) for the lowest inlet mass concentration of the NPs (2.008 g Fe). This implied that the smaller NPs, despite having a higher relative surface

• NPs had more time for interaction and binding to the walls of the channel as they moved with a slower velocity through the hydrogel flow path. An increase in mass loss with size of NPs was also observed for a higher NP concentration of 4.12 g·mL−1 Fe, but the variation was more gradual. This

• phenomenon suggested a slightly lower influence of the surrounding fluid and Brownian motion on the NP flow in this concentration range. However, the quantity of NPs lost due to binding or deposition showed a decreasing quadratic correlation with NP size at the highest inlet mass concentration (5.24 g Fe

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

• (HRTEM) images of the resulting particles showed that the graphite layers are arranged along the longitudinal axis of the fibers [37]. After the acidic washing process, neither XPS nor EDX showed, for g-NCS-850 and g-NCS-1000, Fe or Fe3C particles within the spheres, which are commonly found for the Fe

• g-NCSs, determined by CHN analyses (supported by EDX measurements, e.g., absence of Fe), as well as the elemental surface composition and N bonding configurations, determined by XPS measurements, are given in Table 1 and Table 2. As expected the samples are made up of a carbon matrix including O

• - and H-based functional groups [39]. Subsequent N-doping of the carbon lattice results in multiple nitrogen bonding configurations (Table 2). Possible Fe contaminations of the g-NCS samples originating from the Fe2O3 graphitization catalyst are below the detection limit of the EDX and XPS measurements

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

• glycerol (8 mL) under slow stirring. Secondly, 0.1098 g Zn(CH3COO)2·2H2O and 0.4042 g Fe(NO3)3·9H2O were dissolved in the obtained homogeneous solution under magnetic stirring for 1 h. Subsequently, the mixed solutions were transferred into a Teflon-lined stainless-steel autoclave (50 mL), and then

• the 0.5 wt % ZnFe2O4/rGO composite. Furthermore, the composition of the sample was analyzed by high-angle annular dark-field imaging scanning transmission electron microscopy (HAADF-STEM) and EDS. The element mappings in Figure 6e reveal the existence of C, Zn, Fe and O in the 0.5 wt % ZnFe2O4/rGO

• % ZnFe2O4/rGO spheres and e) EDX elemental mapping images of C (red), Zn (blue), Fe (yellow) and O (orange). Response of the hollow spheres made of pure ZnFe2O4 and the four different ZnFe2O4/rGO composites used as gas sensors to 10 ppm acetone vapor at 150–225 °C. Dynamic response/recovery curves of the

Deterministic placement of ultra-bright near-infrared color centers in arrays of silicon carbide micropillars

• Stefania Castelletto,
• Abdul Salam Al Atem,
• Faraz Ahmed Inam,
• Hans Jürgen von Bardeleben,
• Sophie Hameau,
• Ahmed Fahad Almutairi,
• Gérard Guillot,
• Shin-ichiro Sato,
• Alberto Boretti and
• Jean Marie Bluet

Beilstein J. Nanotechnol. 2019, 10, 2383–2395, doi:10.3762/bjnano.10.229

• nanopillar with optical pump saturation occurring at 3.5 mW has been shown previously [48]. This corresponds to a fluorescence enhancement (FE) by a factor of two to three compared to single emitters in non-fabricated samples. Thus, for sample 1 we estimate in the gap about ca. 41 emitters, assuming a count

• surface and the radiated power collected on the same surface for dipole emission in bulk SiC. To have a comparison with the experimentally measured PL enhancement, the calculated FE is defined by the equation [60]: where the color center bulk quantum efficiency, QEbulk, and the SiC pillar quantum

• %. In the FE calculations, we saw successive periodic peaks in the FE enhancement factor along the length of the pillar, with a spacing between the peaks of 400–450 nm, which is about half of the dipole emission wavelength (Figure 8b, circles). The first peak appears at ca. 400 nm from the top surface

Design and facile synthesis of defect-rich C-MoS₂/rGO nanosheets for enhanced lithium–sulfur battery performance

• Chengxiang Tian,
• Juwei Wu,
• Zheng Ma,
• Bo Li,
• Pengcheng Li,
• Xiaotao Zu and
• Xia Xiang

Beilstein J. Nanotechnol. 2019, 10, 2251–2260, doi:10.3762/bjnano.10.217

• -4, C-MoS2/rGO-6, C-MoS2/rGO-8) with a 3:1 mass ratio was calcined at 155 °C for 12 h in a sealed vessel. Materials characterization The structure and morphology were investigated by field-emission scanning electron microscopy (FE-SEM, INSPECT F50) and transmission electron microscopy (TEM, ZEISS