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Search for "palladium" in Full Text gives 88 result(s) in Beilstein Journal of Nanotechnology.

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

Graphical Abstract
  • with a thin layer of gold–palladium alloy using a SPI Module sputter coater. Fourier transform infrared-attenuated total reflectance (FTIR-ATR) spectra were recorded on a Nicolet iS50 spectrometer (Thermo Scientific, USA) at 0.04 cm−1 resolution and in the range of 400–4000 cm−1. Brunauer–Emmett–Teller
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Published 01 Nov 2016

In situ characterization of hydrogen absorption in nanoporous palladium produced by dealloying

  • Eva-Maria Steyskal,
  • Christopher Wiednig,
  • Norbert Enzinger and
  • Roland Würschum

Beilstein J. Nanotechnol. 2016, 7, 1197–1201, doi:10.3762/bjnano.7.110

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  • /bjnano.7.110 Abstract Palladium is a frequently used model system for hydrogen storage. During the past few decades, particular interest was placed on the superior H-absorption properties of nanostructured Pd systems. In the present study nanoporous palladium (np-Pd) is produced by electrochemical
  • reversible actuation clearly exceeds the values found in the literature, which is most likely due to the unique structure of np-Pd with an extraordinarily high surface-to-volume ratio. Keywords: dealloying; dilatometry; hydrogen storage; nanoporous palladium; resistometry; Findings The knowledge about the
  • remarkable hydrogen absorption properties of palladium dates back to the mid-nineteenth century [1] and has been studied intensively ever since. Even though palladium itself does not possess technical relevance as a hydrogen storage material due to its high price and rather low achievable H storage densities
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Published 17 Aug 2016

Frog tongue surface microstructures: functional and evolutionary patterns

  • Thomas Kleinteich and
  • Stanislav N. Gorb

Beilstein J. Nanotechnol. 2016, 7, 893–903, doi:10.3762/bjnano.7.81

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  • carbon-containing double-sided adhesive tape. The specimens were then coated with a 10 nm gold–palladium layer by using a Leica SCD05 Sputter Coater (Leica Microsystems GmbH, Wetzlar, Germany). For scanning electron microscopy, we used a Hitachi S-4800 scanning electron microscope at an accelerating
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Published 22 Jun 2016

Templated green synthesis of plasmonic silver nanoparticles in onion epidermal cells suitable for surface-enhanced Raman and hyper-Raman scattering

  • Marta Espina Palanco,
  • Klaus Bo Mogensen,
  • Marina Gühlke,
  • Zsuzsanna Heiner,
  • Janina Kneipp and
  • Katrin Kneipp

Beilstein J. Nanotechnol. 2016, 7, 834–840, doi:10.3762/bjnano.7.75

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  • nanoparticles; surface-enhanced Raman scattering; surface-enhanced hyper-Raman scattering; Introduction Nanostructures made from metals, such as silver, gold, aluminium or palladium in various sizes and shapes attract growing attention because of their interesting properties and broad applications in many
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Published 09 Jun 2016

Time-dependent growth of crystalline Au0-nanoparticles in cyanobacteria as self-reproducing bioreactors: 2. Anabaena cylindrica

  • Liz M. Rösken,
  • Felix Cappel,
  • Susanne Körsten,
  • Christian B. Fischer,
  • Andreas Schönleber,
  • Sander van Smaalen,
  • Stefan Geimer,
  • Christian Beresko,
  • Georg Ankerhold and
  • Stefan Wehner

Beilstein J. Nanotechnol. 2016, 7, 312–327, doi:10.3762/bjnano.7.30

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  • nanocluster development [46][47][48] of various metals, e.g., palladium, gold and silver [46]. Although UV–vis spectroscopy based methods have been developed to determine the size of nanoparticles resp. nanoclusters in solution [47][48]. UV–vis spectroscopy was also tested for the type of system used here in
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Published 02 Mar 2016

Case studies on the formation of chalcogenide self-assembled monolayers on surfaces and dissociative processes

  • Yongfeng Tong,
  • Tingming Jiang,
  • Azzedine Bendounan,
  • Makri Nimbegondi Kotresh Harish,
  • Angelo Giglia,
  • Stefan Kubsky,
  • Fausto Sirotti,
  • Luca Pasquali,
  • Srinivasan Sampath and
  • Vladimir A. Esaulov

Beilstein J. Nanotechnol. 2016, 7, 263–277, doi:10.3762/bjnano.7.24

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  • . We discuss some recent studies based on X-ray photoelectron spectroscopy that shed light on these aspects for a series of such organic molecules. Keywords: copper; nickel; palladium; reactivity; selenol; selenophene; self-assembly; thiol; thiophene; Introduction In recent years research related to
  • important questions related to the nature of the interface layer. For instance, in the case of palladium nanoparticles there has been a controversy [53][54][55] about whether the thiol was adsorbed on the metal core or rather if the metal core was capped by a PdS layer on which the alkanethiol was formed
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Published 17 Feb 2016

Green and energy-efficient methods for the production of metallic nanoparticles

  • Mitra Naghdi,
  • Mehrdad Taheran,
  • Satinder K. Brar,
  • M. Verma,
  • R. Y. Surampalli and
  • J. R. Valero

Beilstein J. Nanotechnol. 2015, 6, 2354–2376, doi:10.3762/bjnano.6.243

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  • and electronics), biotechnology (detection and control of micro-organism), and medicine (drug development and immunoassays) [4][21][22][23]. For example, NPs made from platinum, palladium, gold, silver, and copper have applications in biological labeling, optoelectronics, photography, photonics
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Published 10 Dec 2015

Distribution of Pd clusters on ultrathin, epitaxial TiOx films on Pt3Ti(111)

  • Christian Breinlich,
  • Maria Buchholz,
  • Marco Moors,
  • Tobias Pertram,
  • Conrad Becker and
  • Klaus Wandelt

Beilstein J. Nanotechnol. 2015, 6, 2007–2014, doi:10.3762/bjnano.6.204

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  • Scanning tunnelling microscopy (STM) was used to investigate the nucleation and growth of palladium clusters on two different, ultrathin, epitaxial, titania films grown on a Pt3Ti(111) surface. The first oxide phase, z'-TiOx, is anisotropic and consists of parallel stripes separated by trenches. Defects
  • -type superstructure with fewer and shallower defects, making the template effect less discernible. Keywords: cluster growth; palladium; platinum–titanium alloy; scanning tunnelling microscopy (STM); template; titanium oxide; Introduction Catalysts often consist of metal nanoparticles dispersed on an
  • carbon or oxygen contamination in AES experiments. Palladium was evaporated from a simple Knudsen cell with a slow deposition rate of approximately 2 · 10−3 MLs−1. The amount deposited was controlled by the deposition time and monitored by the evolution of the 330 eV Pd AES signal in relation to the 505
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Published 09 Oct 2015

Atomic force microscopy as analytical tool to study physico-mechanical properties of intestinal cells

  • Christa Schimpel,
  • Oliver Werzer,
  • Eleonore Fröhlich,
  • Gerd Leitinger,
  • Markus Absenger-Novak,
  • Birgit Teubl,
  • Andreas Zimmer and
  • Eva Roblegg

Beilstein J. Nanotechnol. 2015, 6, 1457–1466, doi:10.3762/bjnano.6.151

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  • and the removed filter membranes were given a thin coating of gold palladium (Bal-Tec SCD 500) to improve the surface conductance of the sample and thus avoid surface charging of the sample under the beam. The samples were sputtered at 25 mA for 60 s under argon atmosphere and images were acquired
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Published 06 Jul 2015

Polymer blend lithography for metal films: large-area patterning with over 1 billion holes/inch2

  • Cheng Huang,
  • Alexander Förste,
  • Stefan Walheim and
  • Thomas Schimmel

Beilstein J. Nanotechnol. 2015, 6, 1205–1211, doi:10.3762/bjnano.6.123

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  • technique to form patterns of various metals, we used the process described in Figure 1g–i to fabricate 20 nm thick films of gold, palladium, copper and chromium (see Figure 2). Sub-100 nm holes and islands By using polystyrene with very low molecular weight (9.58 kg/mol), it is possible to obtain a polymer
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Published 26 May 2015

The convenient preparation of stable aryl-coated zerovalent iron nanoparticles

  • Olga A. Guselnikova,
  • Andrey I. Galanov,
  • Anton K. Gutakovskii and
  • Pavel S. Postnikov

Beilstein J. Nanotechnol. 2015, 6, 1192–1198, doi:10.3762/bjnano.6.121

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  • salt structure, and ability to form stable covalent bonding with surfaces. ADSs have been used to modify metal NPs such as platinum, gold [14], palladium [15], aluminum [16], titanium [17] and iron oxide [18] surfaces. Quite a few works regarding the modification of Fe-based carbon-coated materials
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Published 21 May 2015

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

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  • application of this concept by producing platinum-decorated carbon nanotubes by means of a wet-chemistry technique [27]. Star et al. electroplated carbon nanotubes with gold, rhodium, palladium or platinum to obtain metal-decorated nanotubes as gas sensors for carbon monoxide, nitrogen dioxide, methane
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Published 09 Apr 2015

Influence of gold, silver and gold–silver alloy nanoparticles on germ cell function and embryo development

  • Ulrike Taylor,
  • Daniela Tiedemann,
  • Christoph Rehbock,
  • Wilfried A. Kues,
  • Stephan Barcikowski and
  • Detlef Rath

Beilstein J. Nanotechnol. 2015, 6, 651–664, doi:10.3762/bjnano.6.66

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  • reprotoxicological studies using chicken embryos, which were exposed in ovo to nanoparticles made from gold [98], silver [99][100][101][102], silver–palladium alloy [103] and silver–copper alloy [102] are considered. While gold nanoparticles remained consistently inert, even after application of silver containing
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Published 05 Mar 2015

Filling of carbon nanotubes and nanofibres

  • Reece D. Gately and
  • Marc in het Panhuis

Beilstein J. Nanotechnol. 2015, 6, 508–516, doi:10.3762/bjnano.6.53

Graphical Abstract
  • of graphene, decorated with palladium particles via arc discharge in solution [105][106] (see Figure 2). This approach was able to produce filled SWCNTs or MWCNTs, depending on the number of layers of graphene used. In addition, it has been proposed that other metallic particles can be used. This has
  • ,c,d) with permission from [23], copyright 2007 the Royal Society of Chemistry. Schematic of a method for producing filled SWCNTs and MWCNTs via arc discharge in solution. Metallic palladium particles decorated the exterior surface of graphene sheets, which were then processed as filled CNTs. This
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Published 19 Feb 2015

Palladium nanoparticles anchored to anatase TiO2 for enhanced surface plasmon resonance-stimulated, visible-light-driven photocatalytic activity

  • Kah Hon Leong,
  • Hong Ye Chu,
  • Shaliza Ibrahim and
  • Pichiah Saravanan

Beilstein J. Nanotechnol. 2015, 6, 428–437, doi:10.3762/bjnano.6.43

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  • Lumpur, Malaysia 10.3762/bjnano.6.43 Abstract Freely assembled palladium nanoparticles (Pd NPs) on titania (TiO2) nano photocatalysts were successfully synthesized through a photodeposition method using natural sunlight. This synthesized heterogeneous photocatalyst (Pd/TiO2) was characterized through
  • plasmonic Au nanoparticles deposited on top of TiO2 [27]. While Mohapatra et al. had synthesized TiO2 nanotubes with palladium (Pd) NPs for the photocatalytic decomposition of azo dyes under sunlight irradiation. Pd/TiO2 nanotubes showed a faster degradation time (150 min) to completely decompose azo dye as
  • the TiO2 surface and promotes the application of a non-conventional energy resource. In the present study, a smart, easy and sustainable method for anchoring noble metal onto the surface of TiO2 is reported. Palladium was chosen as the noble metal for the study due to its high reactivity and
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Published 11 Feb 2015

Functionalization of α-synuclein fibrils

  • Simona Povilonienė,
  • Vida Časaitė,
  • Virginijus Bukauskas,
  • Arūnas Šetkus,
  • Juozas Staniulis and
  • Rolandas Meškys

Beilstein J. Nanotechnol. 2015, 6, 124–133, doi:10.3762/bjnano.6.12

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  • standard deviation was calculated according the formula: where N is number of positions, xi is the height at the i position, and is the mean value of all heights. Transmission electron microscopy (TEM) 1 μL of fibril solution was mounted on a carbon-coated palladium grid (400 mesh). The sample was dried
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Published 12 Jan 2015

Synthesis and characterization of fluorescence-labelled silica core-shell and noble metal-decorated ceria nanoparticles

  • Rudolf Herrmann,
  • Markus Rennhak and
  • Armin Reller

Beilstein J. Nanotechnol. 2014, 5, 2413–2423, doi:10.3762/bjnano.5.251

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  • [32] or of exhaust gas [33] and air in cities [34] has been determined. Therefore a practical synthesis of model particles with controlled composition, morphology and size was required. For palladium on alumina [35] and platinum on alumina [36] or alumosilicate [37] this has been achieved. We set out
  • to prepare model NP of CeO2 decorated with the catalytically important noble metals platinum, palladium and rhodium. As for the silica particles, fluorescence labelling is essential for the biophysical studies. Controlling size and shape of ceria nanoparticles Many commercial ceria NP have a broad
  • in the light of the observed increase in agglomeration after calcination of ceria NP (see above) some caution is justified when the preparation calls for this technique. Several approaches to noble-metal-decorated ceria NP have been suggested recently: for gold and palladium by reduction [48][54][55
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Published 16 Dec 2014

Nanomanipulation and environmental nanotechnology

  • Enrico Gnecco,
  • Andre Schirmeisen,
  • Carlos M. Pina and
  • Udo Becker

Beilstein J. Nanotechnol. 2014, 5, 2079–2080, doi:10.3762/bjnano.5.216

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  • emphasis on their applicability, costs and up-scaling. A novel gas sensor based on ZnO nanoparticles doped with palladium is presented. An invaluable support comes from theory, which in combination with experimental techniques can decisively contribute to a better understanding of important nanoscale
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Published 11 Nov 2014

On the structure of grain/interphase boundaries and interfaces

  • K. Anantha Padmanabhan and
  • Herbert Gleiter

Beilstein J. Nanotechnol. 2014, 5, 1603–1615, doi:10.3762/bjnano.5.172

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  • scandium, 23.55 for palladium, 49.03 for lithium, 37.36 for beryllium, 19.38 for phosphorus, 10.16 for boron and so on. Similar values for polymers are not available.) In this line of argument, this enormous energy release raises the local temperature and enables the diffusive ordering of atoms over a
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Published 22 Sep 2014

Liquid fuel cells

  • Grigorii L. Soloveichik

Beilstein J. Nanotechnol. 2014, 5, 1399–1418, doi:10.3762/bjnano.5.153

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  • alloy increases the reaction rate by more than one order of magnitude compared to pure Pt supposedly due to the formation of hydrous molybdenum oxide that reduces the surface poisoning by adsorbed CO [130]. Palladium-based electrocatalysts deliver higher power densities compared to platinum-based ones
  • /MnO2/nanolamella-graphene sheets showed an activity that was about six times higher than that of a traditional Pd/C catalyst [139]. Although the peak power density for supported Pd-based catalysts is lower than for Pd black, the palladium utilization and specific power density (mW per mass unit) are
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Published 29 Aug 2014

Surface topography and contact mechanics of dry and wet human skin

  • Alexander E. Kovalev,
  • Kirstin Dening,
  • Bo N. J. Persson and
  • Stanislav N. Gorb

Beilstein J. Nanotechnol. 2014, 5, 1341–1348, doi:10.3762/bjnano.5.147

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  • -component dental wax (President light body, Coltene, Switzerland) was used to prepare a negative mold of the skin. The negative mold was filled with Spurr’s low-viscosity resin and polymerized overnight at 70 °C. The images of positive epoxy replicas coated with gold–palladium (6 nm layer thickness) were
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Published 22 Aug 2014

Effects of palladium on the optical and hydrogen sensing characteristics of Pd-doped ZnO nanoparticles

  • Anh-Thu Thi Do,
  • Hong Thai Giang,
  • Thu Thi Do,
  • Ngan Quang Pham and
  • Giang Truong Ho

Beilstein J. Nanotechnol. 2014, 5, 1261–1267, doi:10.3762/bjnano.5.140

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  • Anh-Thu Thi Do Hong Thai Giang Thu Thi Do Ngan Quang Pham Giang Truong Ho Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Caugiay, Hanoi, Vietnam; Tel.: +84-43-7569318; Fax: +84-43-8360705 10.3762/bjnano.5.140 Abstract The effect of palladium doping
  • electric properties of ZnO, which influence the sensitive performance [10][12]. Palladium, a 4d metal, is taken as an impurity in ZnO. This is most likely caused by their special electronic configuration, i.e., 4d. Due to the sensitivity of the palladium ions with deep holes on singly ionized oxygen
  • green luminescence band originates from palladium ions, which replace zinc and always occur in ZnO in a small amount. The dominant peak at 517 nm corresponds to the exciton transition from the ground-state electronic subband to the ground-state of Pd in replacing Zn sites (i.e., PdZn vacancies). The
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Published 13 Aug 2014

Purification of ethanol for highly sensitive self-assembly experiments

  • Kathrin Barbe,
  • Martin Kind,
  • Christian Pfeiffer and
  • Andreas Terfort

Beilstein J. Nanotechnol. 2014, 5, 1254–1260, doi:10.3762/bjnano.5.139

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  • preparation: Simple immersion of the substrate, typically gold, silver, or palladium, into micro- or millimolar solutions of the respective organic thiols [2][3] or disulfides [1] yields the monolayers as well defined systems. At least for the gold/thiolate system, it has been claimed that the thiolate units
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Published 12 Aug 2014

Dry friction of microstructured polymer surfaces inspired by snake skin

  • Martina J. Baum,
  • Lars Heepe,
  • Elena Fadeeva and
  • Stanislav N. Gorb

Beilstein J. Nanotechnol. 2014, 5, 1091–1103, doi:10.3762/bjnano.5.122

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  • gold-palladium (4:1) layer by using a high vacuum sputter coater Leica EM SCD500 (Leica Microsystems GmbH, Wetzlar, Germany). Additionally, for quick 3D surface observations a white-light interferometer (New View 6000, ZygoLOT, Darmstadt, Germany) without the sputter coating was used. As described in
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Published 21 Jul 2014

Gas sensing with gold-decorated vertically aligned carbon nanotubes

  • Prasantha R. Mudimela,
  • Mattia Scardamaglia,
  • Oriol González-León,
  • Nicolas Reckinger,
  • Rony Snyders,
  • Eduard Llobet,
  • Carla Bittencourt and
  • Jean-François Colomer

Beilstein J. Nanotechnol. 2014, 5, 910–918, doi:10.3762/bjnano.5.104

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  • adsorption of the target molecules [13]. This was firstly shown using palladium on individual single-walled nanotubes in the detection of H2 with a 50% higher response than the sensor made of pristine carbon nanotubes [14]. Following this report, it was showed that the gas sensitivity of metal (Au, Pt
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Published 26 Jun 2014
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