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Search for "impedance spectroscopy" in Full Text gives 104 result(s) in Beilstein Journal of Nanotechnology.

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

Graphical Abstract
  • hybrid sample helps to reduce the dissolution of Mn into the electrolyte further. The superior electrochemical performance of LMO/G electrodes is ascribed to three aspects. First, the LMO/G exhibits fast kinetics of Li-ion and electron diffusion, as examined by the electrochemical impedance spectroscopy
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Published 17 Jul 2012

Reduced electron recombination of dye-sensitized solar cells based on TiO2 spheres consisting of ultrathin nanosheets with [001] facet exposed

  • Hongxia Wang,
  • Meinan Liu,
  • Cheng Yan and
  • John Bell

Beilstein J. Nanotechnol. 2012, 3, 378–387, doi:10.3762/bjnano.3.44

Graphical Abstract
  • consisting of ultrathin nanosheets with 100% of the [001] facet exposed was employed to fabricate dye-sensitized solar cells (DSCs). Investigation of the electron transport and back reaction of the DSCs by electrochemical impedance spectroscopy showed that the spheres had a threefold lower electron
  • also observed after TiCl4 treatment. The synergistic effect of the variation of the TiO2 conduction band and the electron recombination determined the open-circuit voltage of the DSC. Keywords: dye-sensitized solar cells; electrochemical impedance spectroscopy; electron recombination; TiO2 [001] facet
  • transport and back reaction of the DSCs with the spheres were investigated by electrochemical impedance spectroscopy. In addition, the effect of treatment by an aqueous solution of TiCl4 on the performance of the DSCs with the TiO2 spheres was discussed. Experimental Synthesis of TiO2 nanosheet particles
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Published 07 May 2012

Schottky junction/ohmic contact behavior of a nanoporous TiO2 thin film photoanode in contact with redox electrolyte solutions

  • Masao Kaneko,
  • Hirohito Ueno and
  • Junichi Nemoto

Beilstein J. Nanotechnol. 2011, 2, 127–134, doi:10.3762/bjnano.2.15

Graphical Abstract
  • are low for such mesoporous TiO2 thin film as investigated by an alternating current impedance spectroscopy. The electron conductivity of TiO2 itself is not high. However, the carrier density N of 6.96 × 1019 cm−3 obtained from Figure 4 was high, in the order as that of graphite, indicating that the
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Published 28 Feb 2011

Microfluidic anodization of aluminum films for the fabrication of nanoporous lipid bilayer support structures

  • Jaydeep Bhattacharya,
  • Alexandre Kisner,
  • Andreas Offenhäusser and
  • Bernhard Wolfrum

Beilstein J. Nanotechnol. 2011, 2, 104–109, doi:10.3762/bjnano.2.12

Graphical Abstract
  • monitored by impedance spectroscopy across the nanoporous alumina membrane in real-time. Our approach offers a simple and efficient methodology to investigate the activity of transmembrane proteins or ion diffusion across membrane bilayers. Keywords: anodization; lipid bilayer; microfluidics
  • formation of lipid bilayers on top of the nanoporous membrane which is monitored using impedance spectroscopy. Experimental The experimental setup for the microfluidic anodization approach is shown schematically in Figure 1. The aluminum substrate, either a 30 µm thick aluminum foil or a thin aluminum film
  • the nanoporous membrane. The dissolution of the barrier layer was monitored via impedance spectroscopy (10 Hz to 10 kHz) across the nanoporous alumina membrane by a modular electrochemical system [Autolab (PGSTAT 100/FRA2), Eco Chemie Utrecht, The Netherlands] using silver/silver chloride electrodes
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Published 11 Feb 2011
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