Development of adsorptive membranes by confinement of activated biochar into electrospun nanofibers

• Mehrdad Taheran,
• Mitra Naghdi,
• Satinder K. Brar,
• Emile Knystautas,
• Mausam Verma,
• Rao. Y. Surampalli and
• Jose. R. Valero

Beilstein J. Nanotechnol. 2016, 7, 1556–1563, doi:10.3762/bjnano.7.149

• micropollutants was studied on the sample with the highest surface area (NFM-1.5%). Adsorption test was performed on a 15 × 15 cm2 stainless steel (SS-316) membrane test module connected to a peristaltic pump. A solution with CTC concentration of 200 ppb in milli-Q water was pumped at a flux of 3 mL/cm2·h into

The effect of dry shear aligning of nanotube thin films on the photovoltaic performance of carbon nanotube–silicon solar cells

• Benedikt W. Stolz,
• Daniel D. Tune and
• Benjamin S. Flavel

Beilstein J. Nanotechnol. 2016, 7, 1486–1491, doi:10.3762/bjnano.7.141

• , <100>, with a 100 nm thermal oxide) by photolithography and defined circular active areas (0.08 cm2) in which the SiO2 was removed by buffered oxide etch. The films were deposited as described above and the cells were completed with GaIn eutectic back electrodes and mounted on steel support plates

High performance Ce-doped ZnO nanorods for sunlight-driven photocatalysis

• Bilel Chouchene,
• Tahar Ben Chaabane,
• Lavinia Balan,
• Emilien Girot,
• Kevin Mozet,
• Ghouti Medjahdi and
• Raphaël Schneider

Beilstein J. Nanotechnol. 2016, 7, 1338–1349, doi:10.3762/bjnano.7.125

• Structural and optical characterizations of Ce-doped ZnO rods Ce-doped ZnO rods have been synthesized by a solvothermal method in a Teflon-lined stainless steel autoclave at 160 °C for 24 h using Zn(OAc)2 and Ce2(SO4)3 as starting reagents (Scheme 1). Figure 1a shows the X-ray diffraction (XRD) patterns of

Mesoporous hollow carbon spheres for lithium–sulfur batteries: distribution of sulfur and electrochemical performance

• Anika C. Juhl,
• Artur Schneider,
• Boris Ufer,
• Torsten Brezesinski,
• Jürgen Janek and
• Michael Fröba

Beilstein J. Nanotechnol. 2016, 7, 1229–1240, doi:10.3762/bjnano.7.114

• , evacuated to a pressure of 1.1∙10−4 bar and heated to 125 °C for 12 h at this pressure. Melt impregnation under pressure: HCS and sulfur were ground together in distinct weight ratios and placed in a Teflon lined steel autoclave filled to 90% capacity with water. The autoclave was sealed and the sample was

Reasons and remedies for the agglomeration of multilayered graphene and carbon nanotubes in polymers

• Rasheed Atif and
• Fawad Inam

Beilstein J. Nanotechnol. 2016, 7, 1174–1196, doi:10.3762/bjnano.7.109

• held together in the form of ropes (aggregated nanotubes) [2]. The commercially available SWNT ropes usually have average diameters in the range of 10–20 nm and lengths of several micrometers [35]. These ropes have strengths of about 13–52 GPa (more than steel by a factor of 10) and tensile moduli of

• about 1 TPa (more than steel by factor of 5) [2]. MWNTs comprise a number of concentric graphene cylinders, which is known as “Russian doll” structure. There are van der Waals forces between adjacent graphene layers [40]. MWNTs have diameters and lengths in the ranges of 10–20 nm and of 10–50 μm

• was added and the same process was repeated. The mixture was poured into a steel mold [55]. Degassing was carried out for 20 min under vacuum followed by curing for 4 h at 122 °C [58]. Meincke et al. also used a twin screw extruder to mix CVD-MWNTs, polyamide-6, and acrylonitrile butadiene styrene

Experimental and simulation-based investigation of He, Ne and Ar irradiation of polymers for ion microscopy

• Lukasz Rzeznik,
• Yves Fleming,
• Tom Wirtz and
• Patrick Philipp

Beilstein J. Nanotechnol. 2016, 7, 1113–1128, doi:10.3762/bjnano.7.104

• induced by the implantation of rare gas atoms. The latter has been observed among other for gallium nitride [28], silicon [29], iron [30] or steel [31], and tungsten [32] under helium irradiation. The evolution of roughness for Ne+ irradiation of PMMA can be better seen in Figure 2a where the value of RMS

Photocurrent generation in carbon nanotube/cubic-phase HfO₂ nanoparticle hybrid nanocomposites

• Protima Rauwel,
• Augustinas Galeckas,
• Martin Salumaa,
• Frédérique Ducroquet and
• Erwan Rauwel

Beilstein J. Nanotechnol. 2016, 7, 1075–1085, doi:10.3762/bjnano.7.101

• 20 mL (183 mmol) of benzylamine (purified by redistillation (99.5%), Aldrich). The reaction mixture was transferred into a stainless steel autoclave and carefully sealed. Thereafter, the autoclave was taken out of the glove box and heated in a furnace at 300 °C for 2 days. The resulting milky

Development of highly faceted reduced graphene oxide-coated copper oxide and copper nanoparticles on a copper foil surface

• Rebeca Ortega-Amaya,
• Yasuhiro Matsumoto,
• Andrés M. Espinoza-Rivas,
• Manuel A. Pérez-Guzmán and
• Mauricio Ortega-López

Beilstein J. Nanotechnol. 2016, 7, 1010–1017, doi:10.3762/bjnano.7.93

• Ar atmosphere for 1 h. For characterization, the rGO films were peeled off with stainless steel tweezers. Characterization The structure and morphology were studied using transmission electron microscopy (TEM, JEOL 2010 and HR-TEM, JEOL ARM 200F), field emission scanning electron microscopy (FE-SEM

Thermo-voltage measurements of atomic contacts at low temperature

• Ayelet Ofarim,
• Bastian Kopp,
• Thomas Möller,
• León Martin,
• Johannes Boneberg,
• Paul Leiderer and
• Elke Scheer

Beilstein J. Nanotechnol. 2016, 7, 767–775, doi:10.3762/bjnano.7.68

• junction substrates bronze or stainless steel [18][23][24]. Kapton Cirlex is an electrically insulating and optically opaque material based on polyimide. We use a thickness of 500 µm chosen such that it is mechanically robust yet giving flexibility across a wide temperature range down to 4 K and is thus

Finite-size effect on the dynamic and sensing performances of graphene resonators: the role of edge stress

• Chang-Wan Kim,
• Mai Duc Dai and
• Kilho Eom

Beilstein J. Nanotechnol. 2016, 7, 685–696, doi:10.3762/bjnano.7.61

• materials such as high-tensile steel. This indicates that graphene can be an excellent candidate for developing nanomechanical devices. In recent years, researchers at Cornell [17] have first reported the development of graphene-based nanomechanical resonators, whose dynamic frequency range is of the order

Synthesis and applications of carbon nanomaterials for energy generation and storage

• Marco Notarianni,
• Jinzhang Liu,
• Kristy Vernon and
• Nunzio Motta

Beilstein J. Nanotechnol. 2016, 7, 149–196, doi:10.3762/bjnano.7.17

• formation is about 2000 °C. At this temperature, the electrodes evaporate carbon, forming soot that contains fullerenes, which then condenses on the cool walls of a reactor made of stainless steel or Pyrex [28]. Typically the concentration of fullerenes found in the soot is about 15% (≈13% C60 and ≈2% C70

Fabrication and characterization of novel multilayered structures by stereocomplexion of poly(D-lactic acid)/poly(L-lactic acid) and self-assembly of polyelectrolytes

• Elena Dellacasa,
• Li Zhao,
• Gesheng Yang,
• Laura Pastorino and
• Gleb B. Sukhorukov

Beilstein J. Nanotechnol. 2016, 7, 81–90, doi:10.3762/bjnano.7.10

• . Differential scanning calorimetry The melting point of different PLA samples was characterized by a Mettler Toledo DSC822e instrument. The polymer powder was first filled into a steel sample holder and then was sealed by immobilizing a cap before being put into the instrument. Wide X-ray diffraction Wide angle

Electrochemical behavior of polypyrrol/AuNP composites deposited by different electrochemical methods: sensing properties towards catechol

• Celia García-Hernández,
• Cristina García-Cabezón,
• Cristina Medina-Plaza,
• Fernando Martín-Pedrosa,
• Yolanda Blanco,
• José Antonio de Saja and
• María Luz Rodríguez-Méndez

Beilstein J. Nanotechnol. 2015, 6, 2052–2061, doi:10.3762/bjnano.6.209

• , electrodeposition was carried out through galvanostatic and potentiostatic methods and using platinum (Pt) or stainless steel (SS) as substrates. Scanning electron microscopy (SEM) demonstrated that in all cases gold nanoparticles of similar size were uniformly dispersed in the Ppy matrix. The amount of AuNPs

• effects are not so pronounced on stainless steel, but acceptable LOD are attained with lower price sensors. Keywords: catechol; conducting polymers; electropolymerization; gold nanoparticles (AuNPs); polypyrrole; Introduction Polypyrrole (Ppy) is one of the most extensively studied, conducting polymers

• carried out onto classical platinum electrodes and on stainless steel substrates. This aspect could play a crucial role not only in the structure, properties and performance of the sensor but also in the final price. The structure and sensing properties of voltammetric sensors modified with Ppy/AuNPs

Nitrogen-doped graphene films from chemical vapor deposition of pyridine: influence of process parameters on the electrical and optical properties

• Andrea Capasso,
• Theodoros Dikonimos,
• Francesca Sarto,
• Alessio Tamburrano,
• Giovanni De Bellis,
• Maria Sabrina Sarto,
• Giuliana Faggio,
• Angela Malara,
• Giacomo Messina and
• Nicola Lisi

Beilstein J. Nanotechnol. 2015, 6, 2028–2038, doi:10.3762/bjnano.6.206

• . After the initial ramping of the furnace temperature the pressure was stabilised at 4 mbar by flowing 20 sccm Ar and 20 sccm H2. The quartz boat supporting the samples was then inserted into the hot zone and annealed for 1200 s at the growth temperature. Liquid pyridine was contained in a steel “bubbler

• ethanol, the procedure was the same, with the only difference being that the steel “bubbler” vessel in this case contained liquid ethanol (pressurized in Ar at 3 bar) and was kept at 0 °C. It can be noted that the CVD of pyridine requires the same experimental setup as the CVD of ethanol, being both

Surface engineering of nanoporous substrate for solid oxide fuel cells with atomic layer-deposited electrolyte

• Sanghoon Ji,
• Waqas Hassan Tanveer,
• Wonjong Yu,
• Sungmin Kang,
• Gu Young Cho,
• Sung Han Kim,
• Jihwan An and
• Suk Won Cha

Beilstein J. Nanotechnol. 2015, 6, 1805–1810, doi:10.3762/bjnano.6.184

• (597A, Aremco Products, Inc., USA) and a 0.5 mm-thick silver wire, while the cathode was contacted using a hardened-steel tip with a radius of 0.19 mm probe moved by a XYZ stage. Electrochemical characterization was performed in the two-electrode configuration without a reference electrode. EIS analysis

Conductance through single biphenyl molecules: symmetric and asymmetric coupling to electrodes

• Karthiga Kanthasamy and
• Herbert Pfnür

Beilstein J. Nanotechnol. 2015, 6, 1690–1697, doi:10.3762/bjnano.6.171

• show that there is clear coupling between end groups and interaction over the whole molecule, so that there is still fairly high conductance through this asymmetric biphenyl molecule. Experimental A flexible stainless steel sheet (200 μm thick) coated with an insulating polyimide layer is used as a

Possibilities and limitations of advanced transmission electron microscopy for carbon-based nanomaterials

• Xiaoxing Ke,
• Carla Bittencourt and
• Gustaaf Van Tendeloo

Beilstein J. Nanotechnol. 2015, 6, 1541–1557, doi:10.3762/bjnano.6.158

• nanoparticles were also essential ingredients in inks and printing pastes used over centuries in various cultures [17]. Another example are carbon nanotubes (CNTs) [18] which found their way into the secret recipe of ultra-sharp Damascus steel, which dates back to seventeenth century, and are believed to be

• dispersed into a colloidal solution. CNTs in Damascus steel are found to encapsulate cementite nanowires which might account for its super-plastic behavior. More recently, the report of graphene [22] has triggered extensive studies on its rich physics and has opened up wide applications in photoelectric

Thermal energy storage – overview and specific insight into nitrate salts for sensible and latent heat storage

• Nicole Pfleger,
• Thomas Bauer,
• Claudia Martin,
• Markus Eck and
• Antje Wörner

Beilstein J. Nanotechnol. 2015, 6, 1487–1497, doi:10.3762/bjnano.6.154

• calcium silicate was formed on the surface of the Cofalit® ceramic. Ortega [27] investigated another industrial waste product as potential filler material in hot air, synthetic oil and molten salt: Two electric arc furnace slags from two different steel manufactures in Spain. The slags are in direct

High photocatalytic activity of V-doped SrTiO₃ porous nanofibers produced from a combined electrospinning and thermal diffusion process

• Panpan Jing,
• Wei Lan,
• Qing Su and
• Erqing Xie

Beilstein J. Nanotechnol. 2015, 6, 1281–1286, doi:10.3762/bjnano.6.132

• solutions. This was then transferred to a glass syringe with a stainless steel needle (inner diameter ≈0.4 mm) for electrospinning. The distance and voltage from the tip of needle to the collector were set at 20 cm and 17 kV, respectively. The feeding rate of the emulsion was set at 0.5 mL/h. After

From lithium to sodium: cell chemistry of room temperature sodium–air and sodium–sulfur batteries

• Philipp Adelhelm,
• Pascal Hartmann,
• Conrad L. Bender,
• Martin Busche,
• Christine Eufinger and
• Juergen Janek

Beilstein J. Nanotechnol. 2015, 6, 1016–1055, doi:10.3762/bjnano.6.105

Pt- and Pd-decorated MWCNTs for vapour and gas detection at room temperature

• Hamdi Baccar,
• Atef Thamri,
• Pierrick Clément,
• Eduard Llobet and
• Adnane Abdelghani

Beilstein J. Nanotechnol. 2015, 6, 919–927, doi:10.3762/bjnano.6.95

• bubbler were used to generate reproducible concentrations of the different volatile compounds tested. Calibrated gas bottles connected to the mass flow meters were used to generate reproducible concentrations of the gas studied. These were coupled to a stainless steel sensor chamber (35 cm3 volume), which

Mapping of elasticity and damping in an α + β titanium alloy through atomic force acoustic microscopy

• M. Kalyan Phani,
• Anish Kumar,
• T. Jayakumar,
• Walter Arnold and
• Konrad Samwer

Beilstein J. Nanotechnol. 2015, 6, 767–776, doi:10.3762/bjnano.6.79

• of contact-resonance force microscopy techniques for quantitative measurements of nanomechanical properties. Ogi et al. [6] have studied elastic and damping properties in a dual-phase steel by using resonance ultrasound microscopy (RUM), which is a contact-resonance based technique but limited to

Synthesis of boron nitride nanotubes and their applications

• Saban Kalay,
• Zehra Yilmaz,
• Ozlem Sen,
• Melis Emanet,
• Emine Kazanc and
• Mustafa Çulha

Beilstein J. Nanotechnol. 2015, 6, 84–102, doi:10.3762/bjnano.6.9

• ]. This makes BNNTs useful additives to increase stability against the oxidation of surfaces [4]. Due to their highly hydrophobic character, BNNTs were also used to prepare super hydrophobic surfaces [8][9]. A hydrophobic surface was prepared by the synthesis of BNNTs on the surface of a stainless steel

• to increase the surface area to bring the catalyst, boron and nitrogen precursors into contact as much as possible [32]. Although the impurities originating from the steel surface may interfere with the reaction, the synthesis of high-yield BNNTs was claimed [31]. The ball milling method allows

• °C. The diameter of the synthesized BNNTs was the same as the pore size diameter of the aluminum oxide template. The BNNTs were synthesized in a stainless steel autoclave at 380 °C from amorphous boron, NaN3, and CH3CN for 14 h. The obtained product was washed with ethanol, dried and a 5% BNNTs yield

Materials and characterization techniques for high-temperature polymer electrolyte membrane fuel cells

• Roswitha Zeis

Beilstein J. Nanotechnol. 2015, 6, 68–83, doi:10.3762/bjnano.6.8

• constraints to cell hardware due to the high transmission of neutrons though end- and bipolar plates, which are usually made of stainless steel and graphite. The attenuation of the neutrons originates mainly from hydrogen and hydrogenous compounds such as phosphoric acid. The first neutron radiography study

High-frequency multimodal atomic force microscopy

• Adrian P. Nievergelt,
• Jonathan D. Adams,
• Pascal D. Odermatt and
• Georg E. Fantner

Beilstein J. Nanotechnol. 2014, 5, 2459–2467, doi:10.3762/bjnano.5.255

• a steel disc for imaging. F-actin was prepared according to the protocol of the manufacturer (BK003, Cytoskeleton, Inc., Denver, CO, USA). An amount of 1 μL F-actin was stabilized with 3 μL Alexa Fluor 488 Phalloidin (A12379, Life Technologies, Carlsbad, CA, USA) and diluted to a final volume of 40