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

• ETS-4, AM-1 and quartz were detected (see also SEM data in Figure 3). The corresponding reflections at angles of 2θ are seen at, for example, 29.9° and 7.6° from ETS-4, 35.6° and 49.2° from AM-1, and 13.1° and 30.4° from quartz. The quantification of the presence of each phase in the prepared batch

• , as well as the results of the studies aimed at minimization of the amount of quartz and alternative titanosilicate phases employed during the synthesis of ETS-10 are described in section S6 of Supporting Information File 1. The presence of sharp peaks in the diffractogram (e.g., 0.15° FWHM for the

• alternative phases (such as ETS-4, AM-1, or quartz) appearing as side products. This was confirmed by X-ray diffractograms and TEM, revealing the high crystallinity of the material. Post-synthetic treatment with H2O2 at 423 K led to the successful introduction of mesopores in the range of 4–40 nm

Review of advanced sensor devices employing nanoarchitectonics concepts

• Katsuhiko Ariga,
• Tatsuyuki Makita,
• Masato Ito,
• Taizo Mori,
• Shun Watanabe and
• Jun Takeya

Beilstein J. Nanotechnol. 2019, 10, 2014–2030, doi:10.3762/bjnano.10.198

• nanostructured materials with exotic properties [198] undoubtedly have important contributions. In addition, mass-sensitive sensors, quartz and crystal microbalance [199] are are useful for many substances because mass changes and alteration of viscoelasticity such as phase transition [200] are common over all

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

• particles per milliliter as determined by NTA. The solution was diluted to obtain ca. 3500 NPs in the quartz cuvette (300 μL) of the instruments under laminar flow. Of these 3500 NPs ca. 100–200 NPs are illuminated at any given time as determined from still images of the recorded video using ImageJ software

• . 100 nm [36]. Spectroscopic analyses were recorded at ambient temperature (21–28 °C) using quartz cuvettes with an optical path length of 1 cm. Dynamic light scattering DLS measurements were carried out on a Wyatt DynaProTM DP-801 system coupled with Dynamics V7.0.0.95 software. Measurements were

• recorded with the following settings: 20 mW He–Ne laser, λ0 = 780 nm, scattering angle θ = 90°, molar refractive index of 1.33; viscosity of 0.8872 at 25 °C; the attenuator was set up automatically and ranged between 6 to 9. Corresponding quartz cells were flushed with deionized water followed by a 1% (v/v

Long-term entrapment and temperature-controlled-release of SF₆ gas in metal–organic frameworks (MOFs)

• Hana Bunzen,
• Andreas Kalytta-Mewes,
• Leo van Wüllen and
• Dirk Volkmer

Beilstein J. Nanotechnol. 2019, 10, 1851–1859, doi:10.3762/bjnano.10.180

• was followed by a BelCat-B catalyst analyzer (Bel Japan, Inc.) coupled with a mass spectrometer (OmniStar GSD 320, Pfeiffer Vacuum). The sample was placed between two plugs of quartz wool in a quartz glass reactor and heated up to 500 °C (10 K·min−1) under a flow of helium (30 mL·min−1). The

Chiral nanostructures self-assembled from nitrocinnamic amide amphiphiles: substituent and solvent effects

• Hejin Jiang,
• Huahua Fan,
• Yuqian Jiang,
• Li Zhang and
• Minghua Liu

Beilstein J. Nanotechnol. 2019, 10, 1608–1617, doi:10.3762/bjnano.10.156

• kV. UV–vis spectra were recorded with a Hitachi U-3900 spectrophotometer in quartz cuvettes (light path 0.1 mm and 1 cm). CD spectra were measured with a JASCO J-810 CD spectrophotometer in quartz cuvettes with a 0.1 mm path length over a range of 200–800 nm. XRD analysis was performed on a Rigaku D

Materials nanoarchitectonics at two-dimensional liquid interfaces

• Katsuhiko Ariga,
• Michio Matsumoto,
• Taizo Mori and
• Lok Kumar Shrestha

Beilstein J. Nanotechnol. 2019, 10, 1559–1587, doi:10.3762/bjnano.10.153

• carbonized at 2000 °C in vacuum, resulting in morphology-preserved one-dimensional carbon materials with sp2-hybridised π-electron-rich robust frameworks (Figure 16). Due to their highly aromatic nature, microbalance sensors with the synthesized one-dimensional carbon materials on a quartz crystal

• liquid–liquid interfacial precipitation from 2-propanol and C60 solution in dodecylbenzene as reported by Shrestha and co-workers (Figure 17) [247]. Quartz crystal microbalance sensors coated with the bitter-melon-shaped objects exhibited excellent sensing properties for aromatic vapours with

• . Quartz crystal microbalance sensors modified with these hierarchic C70 assemblies exhibited an excellent sensitivity to aromatic molecules in their vapour phase probably due to facile diffusion through the porous structure, high surface-area contact and advantageous π–π interaction. The formation of low

Rapid thermal annealing for high-quality ITO thin films deposited by radio-frequency magnetron sputtering

• Petronela Prepelita,
• Ionel Stavarache,
• Doina Craciun,
• Florin Garoi,
• Catalin Negrila,
• Beatrice Gabriela Sbarcea and
• Valentin Craciun

Beilstein J. Nanotechnol. 2019, 10, 1511–1522, doi:10.3762/bjnano.10.149

• , electrical and optical properties, making them highly suitable for use as efficient electrodes in photovoltaic devices. Experimental Indium tin oxide (ITO) films with thicknesses ranging from 230 to 370 nm were deposited by radio-frequency magnetron sputtering (rfMS). Quartz substrates (commercially

• samples were measured with a thickness monitor, provided by a quartz crystal as a basic transducer. The crystal is excited in mechanical motion with an external oscillator. When the film reaches the preprogrammed thickness value, the shutter located above the target automatically closes. After deposition

• predefined thickness values. Scanning electron microscopy (SEM) investigations (FEI Quanta) were performed to observe the structures and morphology of the deposited surfaces. Given that the thickness of the quartz substrate is much greater than that of the ITO conductive film, a thin layer of gold was

Growth of lithium hydride thin films from solutions: Towards solution atomic layer deposition of lithiated films

• Ivan Kundrata,
• Karol Fröhlich,
• Lubomír Vančo,
• Matej Mičušík and
• Julien Bachmann

Beilstein J. Nanotechnol. 2019, 10, 1443–1451, doi:10.3762/bjnano.10.142

• homogeneous air-sensitive thin films, characterized by using ellipsometry, grazing incidence X-ray diffraction (GIXRD), in situ quartz crystal microbalance, and scanning electron microscopy, was observed. Lithium hydride diffraction peaks have been observed in as-deposited films by GIXRD. X-ray photoelectron

• chemistry, a quartz crystal microbalance (QCM) system was installed behind the exit of the deposition setup with tubing of minimal length (2 cm), effectively allowing the deposition to occur on the QCM crystal as well. The waste pumped out of the QCM chamber was immediately neutralized with ethanol

• scan speed was changed as necessary. Ellipsometry measurements were performed using SENTECH SENpro ellipsometer, using the included halogen lamp. Frequency measurements on a quartz crystal were performed in situ using an OpenQCM module at 10 MHz. Results and Discussion Structure and possible reaction

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

• the surface of the quartz tube and on quartz substrates (Figure 1a,b). The diameter of the nanowires ranged between 15 and 150 nm (Figure 1c). SnO2 nanopowder synthesis The precipitation method, reported in [30], was used to synthesize nanodispersed tin dioxide. Tin(II) acetate was dissolved in

Highly ordered mesoporous silica film nanocomposites containing gold nanoparticles for the catalytic reduction of 4-nitrophenol

• Mohamad Azani Jalani,
• Leny Yuliati,
• Siew Ling Lee and
• Hendrik O. Lintang

Beilstein J. Nanotechnol. 2019, 10, 1368–1379, doi:10.3762/bjnano.10.135

• Mettler-Toledo TGA/SDTA851e device at a heating rate of 10 °C min−1. For the fabrication, the sol–gel solution was spin-coated on a quartz plate using a Laurell spin coater, model WS-400-6NPP-LITE. Calcination was carried out under atmospheric conditions using a Nabertherm model LE6/11 muffle furnace

• (ICP-OES) on an Agilent model 700 series spectrometer where the samples were digested in 5 wt % aqua regia. The catalytic performance was studied via a Shimadzu DR UV–vis spectrophotometer (UV-2600) under liquid set-up with the fast scanning method using a standard 3 mL quartz cell. Fabrication of

A biomimetic nanofluidic diode based on surface-modified polymeric carbon nitride nanotubes

• Kai Xiao,
• Baris Kumru,
• Lu Chen,
• Lei Jiang,
• Bernhard V. K. J. Schmidt and
• Markus Antonietti

Beilstein J. Nanotechnol. 2019, 10, 1316–1323, doi:10.3762/bjnano.10.130

• purchased from Merck Millipore. Characterizations: The released CNNM was transferred to a quartz glass substrate and analyzed. X-ray photoelectron spectroscopy (XPS) was performed by an ESCALab220i-XL electron spectrometer from VG Scientific using 300W Al Kα radiation, while the base pressure was about 3

Playing with covalent triazine framework tiles for improved CO₂ adsorption properties and catalytic performance

• Giulia Tuci,
• Andree Iemhoff,
• Housseinou Ba,
• Lapo Luconi,
• Andrea Rossin,
• Vasiliki Papaefthimiou,
• Regina Palkovits,
• Jens Artz,
• Cuong Pham-Huu and
• Giuliano Giambastiani

Beilstein J. Nanotechnol. 2019, 10, 1217–1227, doi:10.3762/bjnano.10.121

• used in large excess with respect to the monomer (ZnCl2/monomer = 5:1 molar ratio). After a sequential heating of the monomer/salt mixture at 400 °C and 600 °C for 10 + 10 h in sealed quartz ampules, CTFs have been isolated as amorphous and partially carbonized frameworks. The as-prepared samples

• undoped C-networks reported so far as metal-free catalysts in the same process. Experimental Materials and methods Synthesis of CTF1–5. CTF materials have been synthesized via ionothermal synthesis in quartz glass ampules according to literature procedures [22]. In a general procedure, CTF1–3 were

• prepared as follows: 3 g of the selected monomer (I, II or III) were thoroughly mixed and finely ground with 5 equiv of ZnCl2 within a glovebox and transferred into a quartz ampule (12 cm height and 3 cm diameter). After drying the material under vacuum for at least 3 h, the ampule was flame-sealed, placed

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

• (Sigma-Aldrich Chemicals 99.99%). The mixtures were mechanically ground under inert atmosphere in a glove box and charged into quartz ampoules. The ampoules were evacuated and sealed under a vacuum on the order of 1 × 10−5 Torr and placed in a preheated two-zone vertical furnace. The annealing was

Scavenging of reactive oxygen species by phenolic compound-modified maghemite nanoparticles

• Małgorzata Świętek,
• Yi-Chin Lu,
• Rafał Konefał,
• Liliana P. Ferreira,
• M. Margarida Cruz,
• Yunn-Hwa Ma and
• Daniel Horák

Beilstein J. Nanotechnol. 2019, 10, 1073–1088, doi:10.3762/bjnano.10.108

• (10–260 K) and magnetic field (up to 5.5 T) was obtained for colloids frozen in quartz tubes using an MPMS superconducting quantum interference device (SQUID; Quantum Design; San Diego, CA, USA). The temperature dependence was analyzed using zero-field-cooled (ZF-C) and field-cooled (F-C) measurements

Revisiting semicontinuous silver films as surface-enhanced Raman spectroscopy substrates

• Malwina Liszewska,
• Bogusław Budner,
• Małgorzata Norek,
• Bartłomiej J. Jankiewicz and
• Piotr Nyga

Beilstein J. Nanotechnol. 2019, 10, 1048–1055, doi:10.3762/bjnano.10.105

• quartz crystal microbalance. Characterization of semicontinuous silver films Optical properties of SSFs were characterized using UV–vis–NIR Perkin Elmer Lambda 900 spectrometer. Transmittance was measured using a standard detector, while reflectance was measured with an integrating sphere module

Correlation of surface-enhanced Raman scattering (SERS) with the surface density of gold nanoparticles: evaluation of the critical number of SERS tags for a detectable signal

• Vincenzo Amendola

Beilstein J. Nanotechnol. 2019, 10, 1016–1023, doi:10.3762/bjnano.10.102

• serves to prevent particle agglomeration after drying the drop [42]. Characterization UV–visible spectroscopy was performed with a Varian Cary 5 spectrometer in 2 mm optical path length quartz cells. The AuNP concentration was estimated from UV–visible spectra and the application of Mie theory, as

Direct growth of few-layer graphene on AlN-based resonators for high-sensitivity gravimetric biosensors

• Jimena Olivares,
• Teona Mirea,
• Lorena Gordillo-Dagallier,
• Bruno Marco,
• José Miguel Escolano,
• Marta Clement and
• Enrique Iborra

Beilstein J. Nanotechnol. 2019, 10, 975–984, doi:10.3762/bjnano.10.98

• quartz crystal microbalances (QCMs), and can be configured in sensor arrays and integrated (on-wafer or in-package) along with their driving electronics and microfluidic arrangements, offering compact and inexpensive measurement systems [5][6]. Among the wide variety of thin-film resonators exploiting

Synthesis of MnO₂–CuO–Fe₂O₃/CNTs catalysts: low-temperature SCR activity and formation mechanism

• Yanbing Zhang,
• Lihua Liu,
• Yingzan Chen,
• Xianglong Cheng,
• Chengjian Song,
• Mingjie Ding and
• Haipeng Zhao

Beilstein J. Nanotechnol. 2019, 10, 848–855, doi:10.3762/bjnano.10.85

• on a Thermo Scientific ESCALAB 250 spectrometer equipped with a dual Al/Mg anode (0.6 eV resolution). Catalytic activity The SCR activity tests were carried out in a fixed-bed quartz reactor using 0.15 g catalyst in each test. The reaction gas consisted of [O2] = 5%, [NO] = [NH3] = 400 ppm, balanced

An iridescent film of porous anodic aluminum oxide with alternatingly electrodeposited Cu and SiO₂ nanoparticles

• Menglei Chang,
• Huawen Hu,
• Haiyan Quan,
• Hongyang Wei,
• Zhangyi Xiong,
• Jiacong Lu,
• Pin Luo,
• Yaoheng Liang,
• Jianzhen Ou and
• Dongchu Chen

Beilstein J. Nanotechnol. 2019, 10, 735–745, doi:10.3762/bjnano.10.73

• -area, ordered interference-enabled colored films with uniform structural colors on the surface of inorganic nanoparticles (NPs) that had been prepared to bear surface charges [28]. On the substrates of quartz glass, PET and PP, twenty cycles of the assembly of a SiO2 film led to the formation of dark

Ultrathin hydrophobic films based on the metal organic framework UiO-66-COOH(Zr)

• Miguel A. Andrés,
• Clemence Sicard,
• Christian Serre,
• Olivier Roubeau and
• Ignacio Gascón

Beilstein J. Nanotechnol. 2019, 10, 654–665, doi:10.3762/bjnano.10.65

• OPD/MOF ultrathin films have been fabricated onto glass, calcium fluoride, quartz crystal microbalance (QCM), Si(100) substrates and mica and characterized using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), atomic force microscopy (AFM

• that were further characterized. CO2 adsorption studies In order to study the effect of the surfactant on the adsorption capacity of the MOF sMPs, CO2 adsorption studies were performed using the quartz crystal microbalance (QCM)-based setup described in the experimental section. Drop-cast films of the

Direct observation of the CVD growth of monolayer MoS₂ using in situ optical spectroscopy

• Claudia Beatriz López-Posadas,
• Yaxu Wei,
• Wanfu Shen,
• Daniel Kahr,
• Michael Hohage and
• Lidong Sun

Beilstein J. Nanotechnol. 2019, 10, 557–564, doi:10.3762/bjnano.10.57

• the MoO3 thin films were formed on the substrate surfaces. Actually, we attribute the observed DTS signal to the absorption of the MoO3 thin films which were deposited on the inner surface of the quartz window at the end of the furnace tube. Since the quartz was maintained close to room temperature

• , it is reasonable to assume that a small amount of the MoO3 molecules carried by the Ar flow from upstream may be deposited on the inner surface of this quartz window. The deposition rate of the MoO3 on the inner surface of the quartz window should be proportional to the product of in which, is the

• concentration of MoO3 molecule above the MoO3 source which depends exponentially on the source temperature The coefficient p accounts for the transportation efficiency of MoO3 molecules from the source to the inner surface of the quartz window. Although the coefficient p has been minimized, it was not, however

Ceria/polymer nanocontainers for high-performance encapsulation of fluorophores

• Kartheek Katta,
• Dmitry Busko,
• Yuri Avlasevich,
• Katharina Landfester,
• Stanislav Baluschev and
• Rafael Muñoz-Espí

Beilstein J. Nanotechnol. 2019, 10, 522–530, doi:10.3762/bjnano.10.53

• from the closed flask was transferred to a quartz cuvette under ambient conditions for further fluorescence measurements. As observed in Figure 5, the fluorescence efficiency of this sample is enhanced when compared to the sample prepared under ambient conditions, which is explained by the decrease of

Ultraviolet patterns of flowers revealed in polymer replica – caused by surface architecture

• Anna J. Schulte,
• Matthias Mail,
• Lisa A. Hahn and
• Wilhelm Barthlott

Beilstein J. Nanotechnol. 2019, 10, 459–466, doi:10.3762/bjnano.10.45

• under environmental conditions. Both cameras were equipped with a UV-Nikkor 105 mm quartz objective (Nikon), an IR-neutralization filter (NG 52D, Optik Makario, Mönchengladbach, Germany) and a UV-transmission filter (SP2 400UV 52D, Optik Makario, Mönchengladbach, Deutschland) to eliminate wavelengths in

Improving control of carbide-derived carbon microstructure by immobilization of a transition-metal catalyst within the shell of carbide/carbon core–shell structures

• Teguh Ariyanto,
• Jan Glaesel,
• Andreas Kern,
• Gui-Rong Zhang and
• Bastian J. M. Etzold

Beilstein J. Nanotechnol. 2019, 10, 419–427, doi:10.3762/bjnano.10.41

• shell, was reported previously in detail [15]. Briefly, a vertical quartz tube reactor (di = 0.034 m, l = 1 m) was employed to perform partial chlorination of carbide to carbon. About 1 g of TiC powder was loaded on the top of a quartz frit of a quartz tube. The reactor was then placed in an isothermal

Biocompatible organic–inorganic hybrid materials based on nucleobases and titanium developed by molecular layer deposition

• Leva Momtazi,
• Henrik H. Sønsteby and
• Ola Nilsen

Beilstein J. Nanotechnol. 2019, 10, 399–411, doi:10.3762/bjnano.10.39

• .; Eidet, J. R. J. Biomed. Mater. Res., Part A 2018, 106, 3090–3098. doi:10.1002/jbm.a.36499]. The growth was followed by in situ quartz crystal microbalance (QCM) measurements and all systems exhibited atomic layer deposition (ALD) type of growth. The adenine system has an ALD temperature window between

• precleaned single crystal substrates cut from Si(100) wafers. The growth dynamics were investigated in situ by a quartz crystal microbalance (QCM) using a Maxtek TM400 unit and homemade crystal holders. A change in resonance frequency of the crystal is linearly proportional to the mass of the deposited film