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Search for "one-step" in Full Text gives 141 result(s) in Beilstein Journal of Nanotechnology.

One-step synthesis of high quality kesterite Cu2ZnSnS4 nanocrystals – a hydrothermal approach

  • Vincent Tiing Tiong,
  • John Bell and
  • Hongxia Wang

Beilstein J. Nanotechnol. 2014, 5, 438–446, doi:10.3762/bjnano.5.51

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  • synthesis of pure kesterite-phase Cu2ZnSnS4 (CZTS) nanocrystals with a uniform size distribution by a one-step, thioglycolic acid (TGA)-assisted hydrothermal route. The formation mechanism and the role of TGA in the formation of CZTS compound were thoroughly studied. It has been found that TGA interacted
  • the best of our knowledge, the formation mechanism of CZTS in the hydrothermal reaction has rarely been reported due to the complex reactions involved in the system. Herein we report the synthesis of high quality, pure kesterite phase, monodisperse CZTS nanocrystals by a one-step hydrothermal
  • , pure kesterite phase CZTS nanocrystals with uniform size distribution have been successfully synthesized by a facile one-step hydrothermal route based on a precursor solution containing thioglycolic acid (TGA) as surfactant. The role of TGA in the hydrothermal reaction is clarified and a formation
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Published 09 Apr 2014

Dye-sensitized Pt@TiO2 core–shell nanostructures for the efficient photocatalytic generation of hydrogen

  • Jun Fang,
  • Lisha Yin,
  • Shaowen Cao,
  • Yusen Liao and
  • Can Xue

Beilstein J. Nanotechnol. 2014, 5, 360–364, doi:10.3762/bjnano.5.41

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  • have prepared Pt@TiO2 core–shell nanostructures through a one-step hydrothermal method. Upon ErB sensitization, the Pt@TiO2 core–shell photocatalysts exhibit high visible-light activity for the generation of H2 from proton reduction. Significantly, we observed a synergic effect that allows for a
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Published 26 Mar 2014

Cyclic photochemical re-growth of gold nanoparticles: Overcoming the mask-erosion limit during reactive ion etching on the nanoscale

  • Burcin Özdemir,
  • Axel Seidenstücker,
  • Alfred Plettl and
  • Paul Ziemann

Beilstein J. Nanotechnol. 2013, 4, 886–894, doi:10.3762/bjnano.4.100

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  • nanopillars (sidewall angle > 80°) is based on the idea of stabilizing and re-growing the original Au NP etching masks, while the final etching is performed in one step. An alternative route is introduced in Figure 4. In this approach, rather than applying an additional stabilizing OTMS layer, the original Au
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Published 12 Dec 2013

A facile synthesis of a carbon-encapsulated Fe3O4 nanocomposite and its performance as anode in lithium-ion batteries

  • Raju Prakash,
  • Katharina Fanselau,
  • Shuhua Ren,
  • Tapan Kumar Mandal,
  • Christian Kübel,
  • Horst Hahn and
  • Maximilian Fichtner

Beilstein J. Nanotechnol. 2013, 4, 699–704, doi:10.3762/bjnano.4.79

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  • -von-Helmholtz-Platz 1, Karlsruhe, 76344, Germany Helmholtz Institute Ulm (HIU), Albert-Einstein-Allee 11, Ulm, 89081, Germany 10.3762/bjnano.4.79 Abstract A carbon-encapsulated Fe3O4 nanocomposite was prepared by a simple one-step pyrolysis of iron pentacarbonyl without using any templates, solvents
  • was synthesized by a simple one-step pyrolysis of Fe(CO)5. The nanocomposite exhibits well-constructed core–shell and nanotube structures with Fe3O4 cores and graphitic shells/tubes. The nanocomposite electrode exhibits a stable reversible capacity of 920 mAh·g−1 at 93 mA·g−1 in the subsequent 50
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Published 30 Oct 2013

Mapping of plasmonic resonances in nanotriangles

  • Simon Dickreuter,
  • Julia Gleixner,
  • Andreas Kolloch,
  • Johannes Boneberg,
  • Elke Scheer and
  • Paul Leiderer

Beilstein J. Nanotechnol. 2013, 4, 588–602, doi:10.3762/bjnano.4.66

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  • -organization and subsequently used as an evaporation mask, as described for the first time by Fischer and Zingsheim [29] and Deckman [30]. Since then, the technique has been improved by many groups to yield large arrays of different nanostructures in merely one step [31][32][33][34][35][36]. The main advantage
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Published 30 Sep 2013

Functionalization of vertically aligned carbon nanotubes

  • Eloise Van Hooijdonk,
  • Carla Bittencourt,
  • Rony Snyders and
  • Jean-François Colomer

Beilstein J. Nanotechnol. 2013, 4, 129–152, doi:10.3762/bjnano.4.14

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Published 22 Feb 2013

Low-dose patterning of platinum nanoclusters on carbon nanotubes by focused-electron-beam-induced deposition as studied by TEM

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

Beilstein J. Nanotechnol. 2013, 4, 77–86, doi:10.3762/bjnano.4.9

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  • nanoclusters are well-dispersed, covering the selected areas of the CNT surface completely. The ability of FEBID to graft nanoclusters on multiple sides, through an electron-transparent target within one step, is unique as a physical deposition method. Using high-resolution TEM we have shown that the CNT
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Published 04 Feb 2013

A facile approach to nanoarchitectured three-dimensional graphene-based Li–Mn–O composite as high-power cathodes for Li-ion batteries

  • Wenyu Zhang,
  • Yi Zeng,
  • Chen Xu,
  • Ni Xiao,
  • Yiben Gao,
  • Lain-Jong Li,
  • Xiaodong Chen,
  • Huey Hoon Hng and
  • Qingyu Yan

Beilstein J. Nanotechnol. 2012, 3, 513–523, doi:10.3762/bjnano.3.59

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  • .3.59 Abstract We report a facile method to prepare a nanoarchitectured lithium manganate/graphene (LMO/G) hybrid as a positive electrode for Li-ion batteries. The Mn2O3/graphene hybrid is synthesized by exfoliation of graphene sheets and deposition of Mn2O3 in a one-step electrochemical process, which
  • graphene-based electrode materials, especially for LIB cathodes. In this paper, we report a facile approach to synthesize lithium manganate/graphene (LMO/G) hybrids by combining the exfoliation of graphene sheets with the deposition of Mn2O3 nanowalls in a one-step electrochemical process, followed by
  • of Mn2O3 and exfoliation of graphite electrodes in a one-step electrochemical process, followed by molten salt lithiation. The weight ratios between the LMO and graphene can be readily adjusted by simply changing the concentration of Mn2+ in the electrochemical process. These LMO/G electrodes show
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Published 17 Jul 2012

Forming nanoparticles of water-soluble ionic molecules and embedding them into polymer and glass substrates

  • Stella Kiel,
  • Olga Grinberg,
  • Nina Perkas,
  • Jerome Charmet,
  • Herbert Kepner and
  • Aharon Gedanken

Beilstein J. Nanotechnol. 2012, 3, 267–276, doi:10.3762/bjnano.3.30

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  • were created by the application of ultrasonic waves to the aqueous solutions of these salts. When the sonication was carried out in the presence of a glass microscope slide, a parylene-coated glass slide, or a silicon wafer the ionic NPs were embedded in these substrates by a one-step, ultrasound
  • -coated glass slides, and silicon wafers. This was accomplished by a one-step, ultrasound-assisted procedure. The ionic nanoparticles were thrown to the solid surface by the sonochemical microjets and were strongly anchored to the substrates. The coated substrates were characterized by chemical and
  • substrates by a one-step, ultrasound-assisted procedure. The results presented here compare the experimental data collected for the three salts. It is important to note that the applied technique is general and the obtained results appeared to be similar to all studied inorganic salts. Surface properties and
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Published 21 Mar 2012

Parallel- and serial-contact electrochemical metallization of monolayer nanopatterns: A versatile synthetic tool en route to bottom-up assembly of electric nanocircuits

  • Jonathan Berson,
  • Assaf Zeira,
  • Rivka Maoz and
  • Jacob Sagiv

Beilstein J. Nanotechnol. 2012, 3, 134–143, doi:10.3762/bjnano.3.14

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  • one-step parallel printing of OTSeo features extending over much larger surface areas, typically beyond the micrometer (constructive microlithography, CML) [16][22]. Recently, we demonstrated a two-step CL patterning and pattern metallization process, referred to as contact electrochemical patterning
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Published 16 Feb 2012

Electron-beam patterned self-assembled monolayers as templates for Cu electrodeposition and lift-off

  • Zhe She,
  • Andrea DiFalco,
  • Georg Hähner and
  • Manfred Buck

Beilstein J. Nanotechnol. 2012, 3, 101–113, doi:10.3762/bjnano.3.11

Graphical Abstract
  • MBP0 areas. Furthermore, with increasing density of mushrooms the lift-off will become more difficult. For these reasons we explored a two-step-deposition procedure as illustrated in Figure 4b. A short nucleation step at potentials more negative than for the one-step sample (Figure 4c) is followed by a
  • to potentials applied in the one-step-deposition process reported in the literature [26][33]. For the high doses used in this work in combination with the two-step-deposition procedure, an excellent contrast is achieved as demonstrated by the pattern depicted in the SEM image of Figure 6b and the AFM
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Published 06 Feb 2012

Self-assembled monolayers and titanium dioxide: From surface patterning to potential applications

  • Yaron Paz

Beilstein J. Nanotechnol. 2011, 2, 845–861, doi:10.3762/bjnano.2.94

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  • two-steps method, in which a HS–(CH2)10–COOH monolayer was first adsorbed on gold and then exposed to an ethanolic TiO2 colloid solution, and a one-step process in which an ethanolic colloid of TiO2 nanocrystallites was prepared by the sol–gel method in the presence of the functionalized thiols prior
  • to adsorption onto the gold surface. It was found that the one-step process yielded a lower coverage of the TiO2 nanoparticles due to the formation of HS–(CH2)10–COOH spacers connected to the titania nanoparticles. Similarly, Langmuir–Blodgett films of 1,12-dodecane dicarboxylic acid were used to
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Published 20 Dec 2011

Deconvolution of the density of states of tip and sample through constant-current tunneling spectroscopy

  • Holger Pfeifer,
  • Berndt Koslowski and
  • Paul Ziemann

Beilstein J. Nanotechnol. 2011, 2, 607–617, doi:10.3762/bjnano.2.64

Graphical Abstract
  • into a Volterra integral equation of the second kind and, therefore, well-known schemes can be applied to solve such an equation numerically [7][8]. Taking this one step further, it was demonstrated that, taking I–V curves at different tip–sample distances, these Volterra equations form a set of
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Published 19 Sep 2011

Platinum nanoparticles from size adjusted functional colloidal particles generated by a seeded emulsion polymerization process

  • Nicolas Vogel,
  • Ulrich Ziener,
  • Achim Manzke,
  • Alfred Plettl,
  • Paul Ziemann,
  • Johannes Biskupek,
  • Clemens K. Weiss and
  • Katharina Landfester

Beilstein J. Nanotechnol. 2011, 2, 459–472, doi:10.3762/bjnano.2.50

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  • diameter up to 600 nm in one step. Larger diameters have to be synthesized in a step-by-step fashion. 2) The initiator concentration has to be high in order to induce polymerization and not only depends on the amount of monomer added, but also on the amount of the continuous phase. The best results were
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Published 18 Aug 2011

Studies towards synthesis, evolution and alignment characteristics of dense, millimeter long multiwalled carbon nanotube arrays

  • Pitamber Mahanandia,
  • Jörg J. Schneider,
  • Martin Engel,
  • Bernd Stühn,
  • Somanahalli V. Subramanyam and
  • Karuna Kar Nanda

Beilstein J. Nanotechnol. 2011, 2, 293–301, doi:10.3762/bjnano.2.34

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  • , India 10.3762/bjnano.2.34 Abstract We report the synthesis of aligned arrays of millimeter long carbon nanotubes (CNTs), from benzene and ferrocene as the molecular precursor and catalyst respectively, by a one-step chemical vapor deposition technique. The length of the grown CNTs depends on the
  • temperatures and from the remaining iron catalyst. Conclusion In conclusion, we report the growth of millimeter-long CNTs by a direct CVD method. The synthesis technique is a one-step CVD process in which no carrier gas, pre-deposited metal catalyst particles, or growth promoters such as oxidants are required
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Published 14 Jun 2011

Synthesis of LiNbO3 nanoparticles in a mesoporous matrix

  • Anett Grigas and
  • Stefan Kaskel

Beilstein J. Nanotechnol. 2011, 2, 28–33, doi:10.3762/bjnano.2.3

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  • impregnation from the metal precursor and mesoporous silica SBA-15 as the template. A rapid one-step treatment in an IR furnace reduces the preparation time to only 10 min. In comparison, a conventional furnace requires 5 h reaction time to produce nanoparticles with similar textural properties. Another
  • present work, we investigated a rapid and efficient one-step route for the direct IR-accelerated synthesis of LiNbO3 nanopowders using an ordered mesoporous silica SBA-15 as the template, in combination with an IR furnace for the crystallization. The matrix stabilizes the nanoparticles against sintering
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Published 10 Jan 2011
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