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Search for "electrical conductivity" in Full Text gives 240 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

Amorphous NixCoyP-supported TiO2 nanotube arrays as an efficient hydrogen evolution reaction electrocatalyst in acidic solution

  • Yong Li,
  • Peng Yang,
  • Bin Wang and
  • Zhongqing Liu

Beilstein J. Nanotechnol. 2019, 10, 62–70, doi:10.3762/bjnano.10.6

Graphical Abstract
  • .) demonstrate a superior electrochemical performance. Because the ternary phases provide a synergistic effect, these bi-metal phosphides provide good electrical conductivity and electronic structure [15][16][17]. Among the bi-metal phosphides, Ni–Co–P catalysts have been intensively investigated. The similar
  • , respectively. It should be noted that the hydrogen doping may occur due to the small radius of the hydrogen atom when measuring the electrocatalytic activity of NixCoyP/TNAs. Generally speaking, hydrogen doping increases electrical conductivity and enhances electron transfer. Thus the electrocatalytic activity
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Published 07 Jan 2019

Zn/F-doped tin oxide nanoparticles synthesized by laser pyrolysis: structural and optical properties

  • Florian Dumitrache,
  • Iuliana P. Morjan,
  • Elena Dutu,
  • Ion Morjan,
  • Claudiu Teodor Fleaca,
  • Monica Scarisoreanu,
  • Alina Ilie,
  • Marius Dumitru,
  • Cristian Mihailescu,
  • Adriana Smarandache and
  • Gabriel Prodan

Beilstein J. Nanotechnol. 2019, 10, 9–21, doi:10.3762/bjnano.10.2

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  • valuable from a technological point of view are its electrical conductivity, which is strongly affected by the surface states and the presence of dopants, transparency in the visible light range, high reflectance in the infrared range, and its classification as not potentially toxic or harmful [2][3]. The
  • reduced bandgap of tin oxide nanoparticles by introduction of defects to the crystal lattice is ≈0.7 eV [4]. Generally, the doping of these semiconducting oxides with specific cations or anions is performed in order to increase their electrical conductivity while maintaining a high optical transparency in
  • commercial applications that require both transparency and electrical conductivity (employed in liquid crystal displays, organic light emitting diodes (OLEDs), touchscreens or in solar panels) is indium tin oxide (ITO), which unfortunately suffers from high cost and a limited supply of indium [5]. One
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Published 02 Jan 2019

Impact of the anodization time on the photocatalytic activity of TiO2 nanotubes

  • Jesús A. Díaz-Real,
  • Geyla C. Dubed-Bandomo,
  • Juan Galindo-de-la-Rosa,
  • Luis G. Arriaga,
  • Janet Ledesma-García and
  • Nicolas Alonso-Vante

Beilstein J. Nanotechnol. 2018, 9, 2628–2643, doi:10.3762/bjnano.9.244

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  • bulk of the semiconductor. Subsequently, the electron percolation occurs in the TNTs, and crystalline defects and trap states (e.g., surface states) are among the factors that affect the electrical conductivity [62]. Thus, low scan rates are preferred in these experiments for more accurate measurements
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Published 04 Oct 2018

ZnO-nanostructure-based electrochemical sensor: Effect of nanostructure morphology on the sensing of heavy metal ions

  • Marina Krasovska,
  • Vjaceslavs Gerbreders,
  • Irena Mihailova,
  • Andrejs Ogurcovs,
  • Eriks Sledevskis,
  • Andrejs Gerbreders and
  • Pavels Sarajevs

Beilstein J. Nanotechnol. 2018, 9, 2421–2431, doi:10.3762/bjnano.9.227

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  • deionized and distilled water, and finally dried in an electric oven at 90 °C to remove any residual water. First, a 100 nm thick chrome layer was sputtered onto the glass substrate through a metal shadow-mask to provide electrical conductivity for further electrochemical measurements. The deposition was
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Published 11 Sep 2018

Filling nanopipettes with apertures smaller than 50 nm: dynamic microdistillation

  • Evelyne Salançon and
  • Bernard Tinland

Beilstein J. Nanotechnol. 2018, 9, 2181–2187, doi:10.3762/bjnano.9.204

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  • . Nanopipettes are filled faster than by using high back-pressure, in roughly one hour. The technique works with all nanopipettes, filling even closed nanopipettes. Results are tested directly by electrical conductivity to check that filling is complete, that the nanopipette is open and that electrical
  • (cyan) directly after the KCl filling shows the electrical conductivity of the system. The nanopipette is open and filled. The second measurement (purple) after the electromigration shown in (b) shows the nominal current intensity values together with the voltage values. The electrical characteristics
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Published 16 Aug 2018

Electrospun one-dimensional nanostructures: a new horizon for gas sensing materials

  • Muhammad Imran,
  • Nunzio Motta and
  • Mahnaz Shafiei

Beilstein J. Nanotechnol. 2018, 9, 2128–2170, doi:10.3762/bjnano.9.202

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Published 13 Aug 2018

Metal-free catalysis based on nitrogen-doped carbon nanomaterials: a photoelectron spectroscopy point of view

  • Mattia Scardamaglia and
  • Carla Bittencourt

Beilstein J. Nanotechnol. 2018, 9, 2015–2031, doi:10.3762/bjnano.9.191

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  • graphene is its high thermal and electrical conductivity [24], allowing for a good heat diffusion and conduction during catalytic reactions, preventing the generation of overheated regions. The Dirac point of pure graphene is found exactly at the Fermi level, hence graphene is defined as a semi-metal (or a
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Published 18 Jul 2018

Defect formation in multiwalled carbon nanotubes under low-energy He and Ne ion irradiation

  • Santhana Eswara,
  • Jean-Nicolas Audinot,
  • Brahime El Adib,
  • Maël Guennou,
  • Tom Wirtz and
  • Patrick Philipp

Beilstein J. Nanotechnol. 2018, 9, 1951–1963, doi:10.3762/bjnano.9.186

Graphical Abstract
  • , ion irradiation can also be used to modify the electronic properties. The presence of defects can increase the resistivity by several orders of magnitude [2][16]. When combining low-fluence ion irradiation with subsequent annealing, the electrical conductivity of SWCNTs can be improved [17]. The
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Published 09 Jul 2018

Synthesis of carbon nanowalls from a single-source metal-organic precursor

  • André Giese,
  • Sebastian Schipporeit,
  • Volker Buck and
  • Nicolas Wöhrl

Beilstein J. Nanotechnol. 2018, 9, 1895–1905, doi:10.3762/bjnano.9.181

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  • the large surface area of the material. The high aspect ratio together with chemical stability, mechanical strength and electrical conductivity make CNWs an interesting matrix material for catalytic applications. Together with metallic nanoparticles, such as platinum, CNWs could be used in lithium-ion
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Published 29 Jun 2018

Nitrogen-doped carbon nanotubes coated with zinc oxide nanoparticles as sulfur encapsulator for high-performance lithium/sulfur batteries

  • Yan Zhao,
  • Zhengjun Liu,
  • Liancheng Sun,
  • Yongguang Zhang,
  • Yuting Feng,
  • Xin Wang,
  • Indira Kurmanbayeva and
  • Zhumabay Bakenov

Beilstein J. Nanotechnol. 2018, 9, 1677–1685, doi:10.3762/bjnano.9.159

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  • of nucleation sites in NCNT allows ZnO to uniformly grow on its surface with a small size. Also, NCNT has a higher electrical conductivity due to its additional free electron pairs compared to CNT without nitrogen doping. The ZnO@NCNT composite showed excellent electrochemical properties in lithium
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Published 06 Jun 2018

Free-radical gases on two-dimensional transition-metal disulfides (XS2, X = Mo/W): robust half-metallicity for efficient nitrogen oxide sensors

  • Chunmei Zhang,
  • Yalong Jiao,
  • Fengxian Ma,
  • Sri Kasi Matta,
  • Steven Bottle and
  • Aijun Du

Beilstein J. Nanotechnol. 2018, 9, 1641–1646, doi:10.3762/bjnano.9.156

Graphical Abstract
  • ][16], phosphorene [9], siligraphene (SiC5) [10] and molybdenum disulfide (MoS2) [11][17] possess a high specific surface area and high electrical conductivity making them the ideal candidates for gas sensors. In particular, investigations of XS2-based (X = Mo, W) monolayer nanodevices demonstrate that
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Published 05 Jun 2018

Nanoscale electrochemical response of lithium-ion cathodes: a combined study using C-AFM and SIMS

  • Jonathan Op de Beeck,
  • Nouha Labyedh,
  • Alfonso Sepúlveda,
  • Valentina Spampinato,
  • Alexis Franquet,
  • Thierry Conard,
  • Philippe M. Vereecken,
  • Wilfried Vandervorst and
  • Umberto Celano

Beilstein J. Nanotechnol. 2018, 9, 1623–1628, doi:10.3762/bjnano.9.154

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  • strong and localized electric field. Second, the combination of C-AFM and SIMS is used to correlate electrical conductivity and local chemistry in different cathodes for application in ASB. Finally, a promising starting point towards quantitative electrochemical information starting from C-AFM is
  • , using MnO2 and LMO as cathode model systems for ASB, we have demonstrated the use of combined scanning probe and beam analysis techniques to investigate electrical, structural and electrochemical properties at the nanoscale. C-AFM was used for comparing the local electrical conductivity of the two
  • electrical conductivity as highly lithiated regions show enhanced electrical conductivity. Appearance of the ionic hysteresis and influence of Li depletion during preconditioning. (a) The hysteresis loop visible in the I–V curves is indicating the local change in resistance under the tip induced by the Li
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Published 04 Jun 2018

Sheet-on-belt branched TiO2(B)/rGO powders with enhanced photocatalytic activity

  • Huan Xing,
  • Wei Wen and
  • Jin-Ming Wu

Beilstein J. Nanotechnol. 2018, 9, 1550–1557, doi:10.3762/bjnano.9.146

Graphical Abstract
  • agreement with the numerous reports on TiO2/rGO hybrids, because the superior electrical conductivity of graphene improves the separation of photogenerated carriers [26][38]. Interestingly, a simple immersion of the TiO2(B)/rGO sample in the current precursor solution to form the “sheet-on-belt” branched
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Published 24 May 2018

The electrical conductivity of CNT/graphene composites: a new method for accelerating transmission function calculations

  • Olga E. Glukhova and
  • Dmitriy S. Shmygin

Beilstein J. Nanotechnol. 2018, 9, 1254–1262, doi:10.3762/bjnano.9.117

Graphical Abstract
  • nm are characterized by a relatively high electrical conductivity. Due to high strength and conductivity, these films, provided a developed surface and pores for filling with the necessary connections, could be successfully applied in electronic devices and as electrodes of storage batteries
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Published 20 Apr 2018

Electrostatic force spectroscopy revealing the degree of reduction of individual graphene oxide sheets

  • Yue Shen,
  • Ying Wang,
  • Yuan Zhou,
  • Chunxi Hai,
  • Jun Hu and
  • Yi Zhang

Beilstein J. Nanotechnol. 2018, 9, 1146–1155, doi:10.3762/bjnano.9.106

Graphical Abstract
  • -based devices [6]. Because the microstructure and properties of GO sheets can be greatly manipulated during the reduction process, it is important to characterize and evaluate the reducing effect of different reduction processes. Microelectrode-based electrical conductivity measurements [7] and spectral
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Published 11 Apr 2018

Combined pulsed laser deposition and non-contact atomic force microscopy system for studies of insulator metal oxide thin films

  • Daiki Katsube,
  • Hayato Yamashita,
  • Satoshi Abo and
  • Masayuki Abe

Beilstein J. Nanotechnol. 2018, 9, 686–692, doi:10.3762/bjnano.9.63

Graphical Abstract
  • grown on substrate materials have been studied for correlated electron heterostructures and devices. One of the most important and common uses of epitaxial LaAlO3 is its interface with SrTiO3 for studies of electrical conductivity [4], superconductivity [59], photoconductivity [60], and
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Published 21 Feb 2018

Sensing behavior of flower-shaped MoS2 nanoflakes: case study with methanol and xylene

  • Maryam Barzegar,
  • Masoud Berahman and
  • Azam Iraji zad

Beilstein J. Nanotechnol. 2018, 9, 608–615, doi:10.3762/bjnano.9.57

Graphical Abstract
  • nanoflakes. There are numbers of articles which report the successful growth of flower-like MoS2 nanoflakes using this technique [19][20][21][22][23]. Due to the high surface-to-volume ratio, activity, tunable band gap, low electrical noise and acceptable electrical conductivity, MoS2 is considered as one of
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Published 16 Feb 2018

Review: Electrostatically actuated nanobeam-based nanoelectromechanical switches – materials solutions and operational conditions

  • Liga Jasulaneca,
  • Jelena Kosmaca,
  • Raimonds Meija,
  • Jana Andzane and
  • Donats Erts

Beilstein J. Nanotechnol. 2018, 9, 271–300, doi:10.3762/bjnano.9.29

Graphical Abstract
  • approximately 104 switching cycles operating at 1 V drain voltage in a 3T configuration with 100 nm gap between the beam and the drain electrode [19]. Choice of material for the NEM switching element The material properties (Young’s modulus, free surface energy, electrical conductivity, melting temperature
  • electrical conductivity [134], good thermal and mechanical stability and ability to withstand high (up to 50 V) operational voltages [8]. Molybdenum–sulfur–iodine (Mo6S3I6) molecular wire bundles were investigated as NEM switching elements and as a contact material employing combined in situ TEM
  • materials belong to different classes, their mechanical, electrical and thermal properties vary in a relatively narrow range (Figure 13). Typically, they can withstand high temperatures of at least 800 °C and are characterized by a Young’s modulus of hundreds of GPa and have an electrical conductivity above
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Published 25 Jan 2018

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

Graphical Abstract
  • /sulfide materials have low electrical conductivity, which makes the chemically adsorbing polysulfides difficult to be reduced directly on the matrix surface, resulting in the lower reutilization of the active sulfur material. In order to improve the kinetics of the electrode redox reaction, the electrical
  • conductivity of Ti4O7 nanoparticles [16][17] and Co9S8 [18] nanosheets have been used in new concepts for sulfur matrices with both a polar nature and good conductivity. Therefore, the exploration of novel conductive composites is another direction leading to the practical application of Li–S batteries
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Published 24 Jan 2018

Dielectric properties of a bisimidazolium salt with dodecyl sulfate anion doped with carbon nanotubes

  • Doina Manaila Maximean,
  • Viorel Cîrcu and
  • Constantin Paul Ganea

Beilstein J. Nanotechnol. 2018, 9, 164–174, doi:10.3762/bjnano.9.19

Graphical Abstract
  • interface. Experimental data can be presented either by means of the complex dielectric function or of electric conductivity. The AC conductivity σ*(ω) is a complex function: In agreement with Maxwell’s equations, a direct general relationship can be established between the electrical conductivity and the
  • ionic conductivity spectra obey the Jonscher power law [52][53]: where 0 < N ≤ 1 and σdc is the dc conductivity (usually 0.1 ≤ N ≤ 0.4). The parameter σdc is obtained from the electrical conductivity spectra by extrapolation to the ω→0 limit. For samples with ionic carriers, obtaining the conductivity
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Published 16 Jan 2018

Comparative study of post-growth annealing of Cu(hfac)2, Co2(CO)8 and Me2Au(acac) metal precursors deposited by FEBID

  • Marcos V. Puydinger dos Santos,
  • Aleksandra Szkudlarek,
  • Artur Rydosz,
  • Carlos Guerra-Nuñez,
  • Fanny Béron,
  • Kleber R. Pirota,
  • Stanislav Moshkalev,
  • José Alexandre Diniz and
  • Ivo Utke

Beilstein J. Nanotechnol. 2018, 9, 91–101, doi:10.3762/bjnano.9.11

Graphical Abstract
  • annealing protocol at 100, 200, and 300 °C under high vacuum on deposits obtained from Co2(CO)8, Cu(II)(hfac)2, and Me2Au(acac) to study improvements on composition and electrical conductivity. Although the as-deposited material was similar for all precursors, metal grains embedded in a carbonaceous matrix
  • nanocrystalline graphite with comparable crystal sizes of 12–14 nm at 300 °C annealing temperature. However, we observed a more effective formation of graphite clusters in Co- than in Cu- and Au-containing deposits. The graphitisation has a minor influence on the electrical conductivity improvements of Co–C
  • deposits, which is attributed to the high as-deposited Co content and the related metal grain percolation. On the contrary, electrical conductivity improvements by factors of 30 and 12 for, respectively, Cu–C and Au–C deposits with low metal content are mainly attributed to the graphitisation. This
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Published 09 Jan 2018

Electron-driven and thermal chemistry during water-assisted purification of platinum nanomaterials generated by electron beam induced deposition

  • Ziyan Warneke,
  • Markus Rohdenburg,
  • Jonas Warneke,
  • Janina Kopyra and
  • Petra Swiderek

Beilstein J. Nanotechnol. 2018, 9, 77–90, doi:10.3762/bjnano.9.10

Graphical Abstract
  • MeCpPtMe3 have a nanogranular structure, i.e., they consist of nanoscale Pt particles embedded in a carbonaceous matrix [12]. While FEBID-based PtC metal-matrix nanocomposites can serve, for instance, as transducing elements for humidity sensing [13], other applications call for high electrical conductivity
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Published 08 Jan 2018

Response under low-energy electron irradiation of a thin film of a potential copper precursor for focused electron beam induced deposition (FEBID)

  • Leo Sala,
  • Iwona B. Szymańska,
  • Céline Dablemont,
  • Anne Lafosse and
  • Lionel Amiaud

Beilstein J. Nanotechnol. 2018, 9, 57–65, doi:10.3762/bjnano.9.8

Graphical Abstract
  • for ligands fragmentation allow one to envisage the use of the two precursors for FEBID studies. Keywords: amines; copper(II); electron-stimulated desorption; FEBID precursors; HREELS; low-energy electrons; perfluorinated carboxylates; Introduction The high electrical conductivity of copper makes it
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Published 05 Jan 2018

The rational design of a Au(I) precursor for focused electron beam induced deposition

  • Ali Marashdeh,
  • Thiadrik Tiesma,
  • Niels J. C. van Velzen,
  • Sjoerd Harder,
  • Remco W. A. Havenith,
  • Jeff T. M. De Hosson and
  • Willem F. van Dorp

Beilstein J. Nanotechnol. 2017, 8, 2753–2765, doi:10.3762/bjnano.8.274

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  • electrical conductivity [31]. Many applications require pure metal deposition, and widespread use by non-expert users asks for a simple and fast process. While purification is possible by adding gases [32][33][34][35][36] or post-treatment [37], these methods only work for selected precursors and selected
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Published 20 Dec 2017

Ab initio study of adsorption and diffusion of lithium on transition metal dichalcogenide monolayers

  • Xiaoli Sun and
  • Zhiguo Wang

Beilstein J. Nanotechnol. 2017, 8, 2711–2718, doi:10.3762/bjnano.8.270

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  • the adsorption of Li atoms onto two-dimensional materials. Different from the situation where Li atoms are trapped by the defects in graphene, the presence of structural defects does not affect the diffusion of lithium [19]. The main drawback of MoS2 is its poor electrical conductivity. Various
  • ][33][47], MoX2 [33][40][47][50][51][52][53][54][55], HfX2 [33][47] and WX2 [33][40][47][50][55][56][57][58]. The metallic MX2 monolayers have good electrical conductivity, which may make them good anode materials. As shown in Figure 3a and Figure 3b, there are two stable adsorption sites, that is, the
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Published 15 Dec 2017
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