Sugarcane juice derived carbon dot–graphitic carbon nitride composites for bisphenol A degradation under sunlight irradiation

• Lan Ching Sim,
• Jing Lin Wong,
• Chen Hong Hak,
• Jun Yan Tai,
• Kah Hon Leong and
• Pichiah Saravanan

Beilstein J. Nanotechnol. 2018, 9, 353–363, doi:10.3762/bjnano.9.35

• chemical composition of samples was analyzed by XPS (PHI Quantera II, Ulvac-PHI, Inc.) with an Al Kα radiation source. High resolution transmission electron microscope (HRTEM, FEI-TECNAI F20) images were obtained at 200 kV. PL spectra of CDs solution were acquired with a PL spectrophotometer (Perkin Elmer

• ) HRTEM image of CD/g-C3N4(0.5). The insets of (b) and (e) show the energy-dispersive X-ray spectroscopy (EDS) results and particle size distribution of CDs, respectively. (a) XRD patterns and (b) FTIR spectra of g-C3N4, CD/g-C3N4(0.1), CD/g-C3N4(0.2), and CD/g-C3N4(0.5). (a) The absorption spectrum of

Synthesis and characterization of electrospun molybdenum dioxide–carbon nanofibers as sulfur matrix additives for rechargeable lithium–sulfur battery applications

• Ruiyuan Zhuang,
• Shanshan Yao,
• Maoxiang Jing,
• Xiangqian Shen,
• Jun Xiang,
• Tianbao Li,
• Kesong Xiao and
• Shibiao Qin

Beilstein J. Nanotechnol. 2018, 9, 262–270, doi:10.3762/bjnano.9.28

• HRTEM image indicated that the grown structure was single crystalline with a lattice spacing of 0.344 nm, corresponding to the [11] crystal plane of monoclinic MoO2 (Figure 3i). SEM images of pure sulfur and S/MoO2–CNF composites are displayed in Figure 4a,b, respectively. The sulfur morphology was

• and morphology of the fibers was determined by scanning electron microscopy (SEM, JSM-7001F). Details concerning the morphology and structure were examined by high-resolution transmission electron microscopy (HRTEM, Tecnai G2 F30), operated at an accelerating voltage of 200 kV. Selected specimens were

• examined with energy dispersive X-ray (EDX) spectroscopy and elemental mapping attached to the HRTEM operating at 200 kV. The adsorption ability was determined by preparing a Li2S6 solution through the addition of Li2S to sulfur at the molar ratio of 1:5 in tetrahydrofuran (THF) under stirring. The

BN/Ag hybrid nanomaterials with petal-like surfaces as catalysts and antibacterial agents

• Konstantin L. Firestein,
• Denis V. Leybo,
• Alexander E. Steinman,
• Andrey M. Kovalskii,
• Andrei T. Matveev,
• Anton M. Manakhov,
• Irina V. Sukhorukova,
• Pavel V. Slukin,
• Nadezda K. Fursova,
• Sergey G. Ignatov,
• Dmitri V. Golberg and
• Dmitry V. Shtansky

Beilstein J. Nanotechnol. 2018, 9, 250–261, doi:10.3762/bjnano.9.27

• vapours, and (ii) ultraviolet (UV) decomposition of AgNO3 in a suspension of BN NPs. The hybrid microstructures were studied by high-resolution transmission electron microscopy (HRTEM), high-angular dark field scanning TEM imaging paired with energy dispersion X-ray (EDX) mapping, X-ray photoelectron

• to 35 nm, were also detected (Figure 1h). The HRTEM images of individual BN/Ag HNMs obtained via CVD and UV decomposition methods are illustrated in Figure 1f and 1i. The outer BN NP surface is formed by BN nanosheets consisting of several h-BN atomic layers and Ag NPs located between the petals

• . HADF-STEM and spatially-resolved EDX mapping (Figure 2) demonstrate that the surface of BN NPs is densely populated with Ag NPs. Thorough structural characterization of individual Ag NPs revealed their fine structure. The HRTEM images of individual Ag NPs are depicted in Figure 2c and 2f. The particles

Bombyx mori silk/titania/gold hybrid materials for photocatalytic water splitting: combining renewable raw materials with clean fuels

• Stefanie Krüger,
• Michael Schwarze,
• Otto Baumann,
• Christina Günter,
• Michael Bruns,
• Christian Kübel,
• Dorothée Vinga Szabó,
• Rafael Meinusch,
• Verónica de Zea Bermudez and
• Andreas Taubert

Beilstein J. Nanotechnol. 2018, 9, 187–204, doi:10.3762/bjnano.9.21

• TEM with a LaB6 cathode operated at 120 kV. High resolution transmission electron microscopy (HRTEM) was done using an aberration corrected Titan 80-300 (FEI, Eindhoven, The Netherlands) with field emission gun, operated at 300 kV. Scanning transmission electron microscopy (STEM) and chemical analysis

• samples. The slight differences between the AuNP distribution in TEM and STEM may be due to variation between sample areas. Both the AuNPs and the TNPs were further analyzed via HRTEM and fast Fourier transformation (FFT) analysis of the observed lattice fringes along with further EDXS experiments. Figure

• S4, Supporting Information File 1 shows a representative HRTEM image of a typical AuNP and the surrounding TNP in TS_Au5.0. The size of the AuNP (dark spot) is 12 nm. The AuNP is surrounded by different TNPs of about 5 nm in diameter. The size was deduced from the extension of the lattice fringes

Co-reductive fabrication of carbon nanodots with high quantum yield for bioimaging of bacteria

• Jiajun Wang,
• Xia Liu,
• Gesmi Milcovich,
• Tzu-Yu Chen,
• Edel Durack,
• Sarah Mallen,
• Yongming Ruan,
• Xuexiang Weng and
• Sarah P. Hudson

Beilstein J. Nanotechnol. 2018, 9, 137–145, doi:10.3762/bjnano.9.16

• synthesized C-dots (Figure S1, Supporting Information File 1) and a decrease in the QY. Characterization of the carbon nanodots The morphology of the products was characterized by transmission electron microscopy (TEM) and high-resolution transmission electron microscopy (HRTEM). Figure 1A–C shows the TEM

• different additives obtained and labeled as Sa, Sb, Sc, Sd, and Se, respectively. Carbon nanodot characterization The product morphology was assessed by TEM and HRTEM, which was performed on a JEOL-2100F instrument with an accelerating voltage of 200 kV. The XRD patterns of Sa, Sb, and Se were recorded on a

• viability. Quantification is reported as relative values to the negative control, where the negative control (untreated) is set to 100% viability. TEM and HRTEM (inset) images of (A) Sa, (B) Sb, (C) Se samples, and corresponding size (diameter) distribution ranges for (D) Sa, (E) Sb, and (F) Se. (A–C) UV

Facile synthesis of silver/silver thiocyanate (Ag@AgSCN) plasmonic nanostructures with enhanced photocatalytic performance

• Xinfu Zhao,
• Dairong Chen,
• Abdul Qayum,
• Bo Chen and
• Xiuling Jiao

Beilstein J. Nanotechnol. 2017, 8, 2781–2789, doi:10.3762/bjnano.8.277

• microscope (FE-SEM, JSM-6700F), a transmission electron microscope (TEM, JEM 100-CXII) with an accelerating voltage of 80 kV, and a high-resolution TEM (HRTEM, GEOL-2010) with an accelerating voltage of 200 kV. Also, powder X-ray diffraction (XRD) patterns were collected on an X-ray diffractometer (Rigaku D

Dry adhesives from carbon nanofibers grown in an open ethanol flame

• Christian Lutz,
• Julia Syurik,
• C. N. Shyam Kumar,
• Christian Kübel,
• Michael Bruns and
• Hendrik Hölscher

Beilstein J. Nanotechnol. 2017, 8, 2719–2728, doi:10.3762/bjnano.8.271

• microscopy (SEM, Zeiss SUPRA 60 VP) and high-resolution transmission electron microscopy (HRTEM, FEI Titan 80-300). TEM measurements were performed at 80 kV operation voltage and images acquired using a Gatan US1000 CCD camera. TEM samples were prepared by scraping the grown carbon nanostructures from the

• in a good agreement with XPS investigations of CNFs by other authors [41][42]. The weak component at 285.0 eV (blue dashed line) originates from so-called ’adventitious carbon’ sp3, describing hydrocarbon contamination due to the exposure to ambient atmosphere. The HRTEM images in Figure 4 b reveal

• 284.4 eV indicates sp2-hybridized carbon (blue solid line) and the weak component at 285.0 eV is stemming from adventitious sp3-hybridized carbon (blue dashed line). (b) HRTEM images of the grown CNFs. Summary of experiments resulting in CNF growth (green circles) or in no CNF growth (red triangles

PTFE-based microreactor system for the continuous synthesis of full-visible-spectrum emitting cesium lead halide perovskite nanocrystals

• Chengxi Zhang,
• Weiling Luan,
• Yuhang Yin and
• Fuqian Yang

Beilstein J. Nanotechnol. 2017, 8, 2521–2529, doi:10.3762/bjnano.8.252

• electron microscopy (TEM) and high-resolution transmission electron microscopy (HRTEM) (JEM-2100F, JEOL LTD) images of CsPbX3 QDs of five different colors. Table S2 in Supporting Information File 1 lists the reaction conditions for the production of the five different perovskite QDs. The blue and yellow

• ° in accord with the results reported in the literature [30][31][32], confirming that the crystal structure is cubic. The average size of the red perovskite QDs is approximately 4.85 nm as estimated using the fitting of the XRD data, which is compatible with the result of ≈5 nm from the HRTEM results

• rhodamine 6G (QY = 95% in ethanol [40]). HRTEM images were taken on a TEM (JEM-2100F, Jeol, USA) operated at 200 kV, and the sample was prepared by dipping an amorphous carbon–copper grid in a dilute n-hexane dispersed QD solution. The sample was then left to evaporate at room temperature. X-ray diffraction

Hydrothermal synthesis of ZnO quantum dot/KNb₃O₈ nanosheet photocatalysts for reducing carbon dioxide to methanol

• Xiao Shao,
• Weiyue Xin and
• Xiaohong Yin

Beilstein J. Nanotechnol. 2017, 8, 2264–2270, doi:10.3762/bjnano.8.226

• . The as-prepared photocatalysts were characterized by X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDS), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM) and UV–vis absorption spectroscopy (UV–vis). The photocatalytic activity of the

• were characterized with a powder X-ray diffraction instrument (XRD, D/Max–2500, Rigaku). The morphology and microstructure were examined by scanning electron microscopy (FE-SEM, JEOL–JSM 700F). The chemical composition was characterized using energy dispersive X-ray spectroscopy (EDS). TEM and HRTEM

• loaded onto KNb3O8 nanosheets was characterized via TEM (Figure 4) and HRTEM (Figure 5). The crystalline ZnO quantum dot average diameter was about 10 nm and they were found dispersed on the surface of the KNb3O8 nanosheets. The HRTEM image revealed a lattice spacing of 0.282 nm (Figure 5), which clearly

In situ controlled rapid growth of novel high activity TiB₂/(TiB₂–TiN) hierarchical/heterostructured nanocomposites

• Jilin Wang,
• Hejie Liao,
• Yuchun Ji,
• Fei Long,
• Yunle Gu,
• Zhengguang Zou,
• Weimin Wang and
• Zhengyi Fu

Beilstein J. Nanotechnol. 2017, 8, 2116–2125, doi:10.3762/bjnano.8.211

• ), scanning electron microscope (SEM), X-ray energy dispersive spectroscopy (EDX), transition electron microscopy (TEM), high-resolution TEM (HRTEM) and selected-area electron diffraction (SAED). The obtained TiB2/TiN hierarchical/heterostructured nanocomposites demonstrated an average particle size of 100

• to 30 nm. In order to further determine the internal microstructure and phase constitution of the as-synthesized samples, the high-resolution transition electron microscopy (HRTEM) (Figure 2d,f) and selected-area electron diffraction (SAED) (Figure 2e,g) analysis of the tapered nanorods and grains

• planes of TiB2 were found along the length direction of the nanorods and formed an angle with that of TiN. As for the grains, the typical HRTEM image (Figure 2f) presented clear lattice fringes with different interplanar spacings of about 0.26 nm, which was close to that of the (100) plane of TiB2. The

Synthesis and catalytic application of magnetic Co–Cu nanowires

• Lijuan Sun,
• Xiaoyu Li,
• Zhiqiang Xu,
• Kenan Xie and
• Li Liao

Beilstein J. Nanotechnol. 2017, 8, 1769–1773, doi:10.3762/bjnano.8.178

• arranged into long, straight nanowires with smooth surfaces. The average diameter of the nanowires was about 150 nm, which can be observed in Figure 2b,d. Figure 3 shows XRD and HRTEM patterns of the as-prepared bimetallic Co–Cu nanowires. In Figure 3a, two characteristic peaks of face-centered cubic Co at

• -centered cubic Co and Cu without any impurity peaks; therefore, the product was confirmed to be bimetallic Co–Cu nanowires. Furthermore, The HRTEM pattern in Figure 3b showed that the two types of lattice spacings for Co were about 0.20 nm and 0.13 nm, which were in excellent agreement with (111) and (220

• ) lattice planes of face-centered cubic Co, respectively. Moreover, the lattice spacing of Cu was about 0.21 nm, which was consistent with the (111) lattice plane of face-centered cubic Cu. Hence, the components of the bimetallic Co–Cu nanowires were further confirmed through the HRTEM result. In order to

Methionine-mediated synthesis of magnetic nanoparticles and functionalization with gold quantum dots for theranostic applications

• Arūnas Jagminas,
• Agnė Mikalauskaitė,
• Vitalijus Karabanovas and
• Jūrate Vaičiūnienė

Beilstein J. Nanotechnol. 2017, 8, 1734–1741, doi:10.3762/bjnano.8.174

• conjugated with targeting and chemotherapy agents, such as cancer stem cell-related antibodies and the anticancer drug doxorubicin, for early detection and improved treatment. In order to verify our findings, high-resolution transmission electron microscopy (HRTEM), atomic force microscopy (AFM), FTIR

• magneto-plasmonic cobalt ferrite NPs decorated with Au0/Au1+ quantum dots (QDs) were formed for the first time. The formation of plasmonic gold QDs at the surface of iron oxide-based NPs was confirmed by HRTEM, AFM, FTIR, XPS and chemical analysis. Results and Discussion Synthesis and characterization of

• superparamagnetic. The high-resolution TEM image of the CoFe2O4@Met NPs after gold deposition with methionine and the EDX spectrum of these NPs are shown in Figure 2. The HRTEM image shows the formation of numerous gold species at the surface of methionine-stabilized CoFe2O4@Met NPs. In accordance with HRTEM image

Effect of the fluorination technique on the surface-fluorination patterning of double-walled carbon nanotubes

• Lyubov G. Bulusheva,
• Yuliya V. Fedoseeva,
• Emmanuel Flahaut,
• Jérémy Rio,
• Christopher P. Ewels,
• Victor O. Koroteev,
• Gregory Van Lier,
• Denis V. Vyalikh and
• Alexander V. Okotrub

Beilstein J. Nanotechnol. 2017, 8, 1688–1698, doi:10.3762/bjnano.8.169

• by catalytic chemical vapor deposition (CCVD) using CH4 (18 mol %) in H2 at 1000 °C and an Mg1−xCoxO solid solution as catalyst [23]. High-resolution transmission electron microscopy (HRTEM) showed that a typical sample consists of ca. 80% DWCNTs, 20% SWCNTs, and a few triple-walled nanotubes. The

Process-specific mechanisms of vertically oriented graphene growth in plasmas

• Subrata Ghosh,
• Shyamal R. Polaki,
• Niranjan Kumar,
• Sankarakumar Amirthapandian,
• Mohamed Kamruddin and
• Kostya (Ken) Ostrikov

Beilstein J. Nanotechnol. 2017, 8, 1658–1670, doi:10.3762/bjnano.8.166

• transmission electron microscopy (HRTEM) and Raman spectroscopy. Contact angle and electrical resistance measurements of the VGNs are carried out as well. Results and Discussion Growth and optimization Case I: Influence of growth temperature We investigated the early-stage nucleation and growth of VGNs over a

• HRTEM in Figure 2b clearly shows the thickness of a NG layer grown at 600 °C to be 15.44 nm, matching well with that obtained from the SEM cross sections (17 ± 2 nm). TEM of VGNs grown at 800 °C, shown in Figure 2c, reveals transparent sheets with the corrugated and wrinkled structure. The HRTEM in

Two-dimensional carbon-based nanocomposites for photocatalytic energy generation and environmental remediation applications

• Suneel Kumar,
• Ashish Kumar,
• Ashish Bahuguna,
• Vipul Sharma and
• Venkata Krishnan

Beilstein J. Nanotechnol. 2017, 8, 1571–1600, doi:10.3762/bjnano.8.159

Low-temperature CO oxidation over Cu/Pt co-doped ZrO₂ nanoparticles synthesized by solution combustion

• Amit Singhania and
• Shipra Mital Gupta

Beilstein J. Nanotechnol. 2017, 8, 1546–1552, doi:10.3762/bjnano.8.156

• dissolve into the ZrO2 lattice and thus creates oxygen vacancies due to lattice distortion and charge imbalance. High-resolution transmission electron microscopy (HRTEM) results showed Cu/Pt co-doped ZrO2 nanoparticles with a size of ca. 10 nm. X-ray diffraction (XRD) and Raman spectra confirmed cubic

• into ZrO2. As a result of this, a synergic effect is introduced between Cu, Pt and Zr components. Figure 3 showed HRTEM analysis of Pt(1%)–Cu(1%)–ZrO2 nanoparticles. After addition of Cu and Pt into ZrO2, smaller particle sizes in comparison to ZrO2 and Pt(1%)–ZrO2 [20] were measured. The Pt(1%)–Cu(1

• . The observed T50 value is below 40 °C at the maximum GHSV of 60,000 h−1. Conclusion Pt(1%)–Cu(1%)–ZrO2 nanoparticles were successfully synthesized by simple solution combustion. XRD and HRTEM results revealed particles of Pt(1%)–Cu(1%)–ZrO2 with sizes around 10 nm. These nanoparticles were tested for

Atomic structure of Mg-based metallic glass investigated with neutron diffraction, reverse Monte Carlo modeling and electron microscopy

• Rafał Babilas,
• Dariusz Łukowiec and
• Laszlo Temleitner

Beilstein J. Nanotechnol. 2017, 8, 1174–1182, doi:10.3762/bjnano.8.119

• , Hungary 10.3762/bjnano.8.119 Abstract The structure of a multicomponent metallic glass, Mg65Cu20Y10Ni5, was investigated by the combined methods of neutron diffraction (ND), reverse Monte Carlo modeling (RMC) and high-resolution transmission electron microscopy (HRTEM). The RMC method, based on the

• atomic configurations. The nanocrystalline character of the alloy after annealing was also studied by HRTEM. The selected HRTEM images of the nanocrystalline regions were also processed by inverse Fourier transform analysis. The high-angle annular dark-field (HAADF) technique was used to determine phase

• nanocrystalline structure of a multicomponent alloy was also observed by high-resolution transmission electron microscopy (HRTEM) using specific techniques of structure observation. Experimental The investigations were conducted on multicomponent Mg65Cu20Y10Ni5 (atom %) metallic glass. The samples were prepared

AgCl-doped CdSe quantum dots with near-IR photoluminescence

• Pavel A. Kotin,
• Sergey S. Bubenov,
• Natalia E. Mordvinova and
• Sergey G. Dorofeev

Beilstein J. Nanotechnol. 2017, 8, 1156–1166, doi:10.3762/bjnano.8.117

• -resolution TEM (HRTEM) image (Figure 2a). In previous investigations similar CdSe TPs exhibited all WZ reflexes in their XRD pattern [27]. TEM investigation of the samples also revealed the presence of large NPs with sizes of tens of nanometres and irregular shape, i.e., large ellipsoidal particles (EPs

• nucleation energy in the presence of more AgCl precursor during synthesis. Bearing in mind the large size and fraction of EPs in the samples (Table 2), we attributed the rather narrow and intense diffraction peaks of sample AgCl_10 to the hexagonal WZ structure of these particles (Figure 1d). HRTEM images of

• these particles and the corresponding FT patterns (Figure 2b) confirm this assumption. In samples AgCl_12 to AgCl_40, the WZ reflections become broader because the size of EPs decreases (Table 2 and Figure 1e,f). The structure of AgCl_40 was also confirmed by HRTEM (Figure 2c). In order to investigate

Hierarchically structured nanoporous carbon tubes for high pressure carbon dioxide adsorption

• Julia Patzsch,
• Deepu J. Babu and
• Jörg J. Schneider

Beilstein J. Nanotechnol. 2017, 8, 1135–1144, doi:10.3762/bjnano.8.115

• using an aluminum sample holder. High-resolution transmission microscopy (HRTEM) analysis was performed on lacey carbon copper grids (300 mesh) at a G2F20 (Tecnai) at the ERC-Jülich in Germany. IR measurements were performed on a Nicolet 6700 spectrometer with an ATR Smart Performer unit from Thermo

High photocatalytic activity of Fe₂O₃/TiO₂ nanocomposites prepared by photodeposition for degradation of 2,4-dichlorophenoxyacetic acid

• Shu Chin Lee,
• Hendrik O. Lintang and
• Leny Yuliati

Beilstein J. Nanotechnol. 2017, 8, 915–926, doi:10.3762/bjnano.8.93

• nanocomposites synthesized by the impregnation method, further detailed investigations were carried out on nanocomposites synthesized by the photodeposition method. Transmission electron microscopy (TEM) and high-resolution TEM (HRTEM) images of both unmodified TiO2 (NT) and Fe2O3(0.5)/TiO2 (PD) are shown in

• Figure 4. As shown in Figure 4a, the TiO2 (NT) sample has spherical particles with a diameter of 7–9 nm. This result agreed well with the crystallite size calculated by the Scherrer equation previously discussed. The HRTEM image of the TiO2 (NT) sample displayed in Figure 4b shows a lattice fringe

• spacing of 0.35 nm attributed to the anatase TiO2(101) crystal plane. Figure 4d shows a HRTEM image of Fe2O3(0.5)/TiO2 (PD). It was evident that the deposition of Fe did not change the morphology of the TiO2. Since the lattice fringe spacing of 0.27 nm related to the Fe2O3(104) crystal plane was observed

Investigation of growth dynamics of carbon nanotubes

• Marianna V. Kharlamova

Beilstein J. Nanotechnol. 2017, 8, 826–856, doi:10.3762/bjnano.8.85

• also the rate-limiting step of the growth. The authors of [43] applied the surface diffusion model to explain fast growth rates of SWCNTs in the thermal CVD process at temperatures as low as 600 °C. In [41], Helveg with co-authors performed the first time-resolved in situ HRTEM studies on the formation

• in the fast Fourier transform (FFT) of Figure 3b to {111} planes, with the face-centered cubic (fcc) Ni lattice oriented close to the [110] axis. Figure 3c,d show ex situ HRTEM images of SWCNTs. Figure 3c presents an individual hemispherically capped SWCNT at a more progressed stage of growth. It is

• using C2H2 as carbon source and iron carbide catalyst. Figure 5a shows in situ HRTEM micrographs of the growth process of individual SWCNT. Before the nucleation of SWCNT, the catalyst nanoparticle shows in every snapshot different facets (e.g., t = 8.05 and 16.45 s). Various carbon cages jut out from

Synthesis of graphene–transition metal oxide hybrid nanoparticles and their application in various fields

• Arpita Jana,
• Elke Scheer and
• Sebastian Polarz

Beilstein J. Nanotechnol. 2017, 8, 688–714, doi:10.3762/bjnano.8.74

Carbon nanotube-wrapped Fe₂O₃ anode with improved performance for lithium-ion batteries

• Guoliang Gao,
• Yan Jin,
• Qun Zeng,
• Deyu Wang and
• Cai Shen

Beilstein J. Nanotechnol. 2017, 8, 649–656, doi:10.3762/bjnano.8.69

• distributed over the COOH-MWCNT frameworks. The structure of the as-prepared Fe2O3/COOH-MWCNT composite material was further examined by TEM and HRTEM. The results are presented in Figure 2. It can be seen in Figure 2a that Fe2O3 particles with a size of around 200 nm are evenly distributed between COOH

• -MWCNTs, which is in good agreement with the SEM result. Figure 2b shows a HRTEM image of the composites. There is an obvious secondary structure in which smaller Fe2O3 nanoparticles are formed on larger Fe2O3 nanoparticles. Figure 2c shows a HRTEM image and a selected area electron diffraction pattern of

• composites: (a) XRD patterns; (b) SEM image; (c) and (d) energy-dispersive X-ray analysis (EDX). Fe2O3/COOH-MWCNT composites: (a) and (b) HRTEM; (c) HRTEM and selected area electron diffraction patterns of TEM. TG curve of Fe2O3/COOH-MWCNT composites. Electrochemical performance of the electrodes: (a

Formation and shape-control of hierarchical cobalt nanostructures using quaternary ammonium salts in aqueous media

• Ruchi Deshmukh,
• Anurag Mehra and
• Rochish Thaokar

Beilstein J. Nanotechnol. 2017, 8, 494–505, doi:10.3762/bjnano.8.53

• -resolution transmission electron microscopy (HRTEM), and field emission gun scanning electron microscopy (FEGSEM). FEGTEM investigations were carried out by using a JEOL, JEM2100F operated at 200 kV, and the HRTEM was carried out using a JEM 2100 with a LaB6 filament operated at 200 kV. A JEOL JSM-7600F

• FEGTEM and HRTEM, in normal modes of operation, allow access only to lateral size and shape of nanostructures limiting the information about the third-dimension which may thereby create a false impression about the shape of the nanostructures. For example, in Figure 3m, the nanoplates could be

• growth of highly anisotropic nanostructures without the aid of complex microscopy accessories. The importance of the combined interpretation of FEGTEM/HRTEM and FEGSEM micrographs is also emphasized. The method proposed is simple and the results should be useful for designing a controlled synthesis of

Performance of colloidal CdS sensitized solar cells with ZnO nanorods/nanoparticles

• Anurag Roy,
• Partha Pratim Das,
• Mukta Tathavadekar,
• Sumita Das and
• Parukuttyamma Sujatha Devi

Beilstein J. Nanotechnol. 2017, 8, 210–221, doi:10.3762/bjnano.8.23

• crystallites was calculated to be ≈5.2 nm using the Scherrer equation. The bright field image of the synthesized powder indicated the finer and porous nature of the synthesized CdS nanoparticles (Figure 1b). The high resolution TEM (HRTEM) image shows the (111) and (311) crystalline planes with d values of

• ) Bright field transmission electron microscope image of the NPs. (c) HRTEM image highlighting the inter-planar distance of the cubic crystal planes (Inset: corresponding FFT pattern). (d) SAED pattern from image in (b). (a) and (b) show the FT-IR and Raman spectrum, respectively, of the synthesized CdS