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Search for "polyol process" in Full Text gives 12 result(s) in Beilstein Journal of Nanotechnology.

Zinc oxide nanostructures for fluorescence and Raman signal enhancement: a review

  • Ioana Marica,
  • Fran Nekvapil,
  • Maria Ștefan,
  • Cosmin Farcău and
  • Alexandra Falamaș

Beilstein J. Nanotechnol. 2022, 13, 472–490, doi:10.3762/bjnano.13.40

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  • alone, an effect which the authors assigned to the amplification of the chemical effect of the ZnO layer by the LSPR of the Au cores. In another study, Ag nanowires were prepared by a polyol process and core–shell Ag–ZnO heteronanowires were synthesized by a simple solution process adding Zn(NO3)2 and
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Published 27 May 2022

A review on nanostructured silver as a basic ingredient in medicine: physicochemical parameters and characterization

  • Gabriel M. Misirli,
  • Kishore Sridharan and
  • Shirley M. P. Abrantes

Beilstein J. Nanotechnol. 2021, 12, 440–461, doi:10.3762/bjnano.12.36

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Published 14 May 2021

A review on the green and sustainable synthesis of silver nanoparticles and one-dimensional silver nanostructures

  • Sina Kaabipour and
  • Shohreh Hemmati

Beilstein J. Nanotechnol. 2021, 12, 102–136, doi:10.3762/bjnano.12.9

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  • process difficult and costly. In the case of hydrazine, the synthesized particles may potentially include some of the remnants from the reagent, thus making them hazardous or even unusable for biomedical applications. The polyol process is another common wet chemical method used for the synthesis of
  • silver nanostructures. The polyol process is typically performed at 120–160 °C by utilizing ethylene glycol as the solvent and reducing agent and PVP as the capping agent in the presence of a small amount of salt mediator [247][248][249]. Although the polyol process is a non-hazardous and widely accepted
  • method for the synthesis of silver nanostructures, there are some disadvantages associated with it. First, the polyol process is typically performed at temperatures higher than 120 °C, which is associated with high energy consumption. Second, this process requires dilute concentrations of silver
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Published 25 Jan 2021

Advanced hybrid nanomaterials

  • Andreas Taubert,
  • Fabrice Leroux,
  • Pierre Rabu and
  • Verónica de Zea Bermudez

Beilstein J. Nanotechnol. 2019, 10, 2563–2567, doi:10.3762/bjnano.10.247

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  • the polyol process” [19], the synthetic process was found to be of prime importance to shape the nanoparticles and to optimize their surface/volume ratio in relation to the magnetic behavior. A one-step non-hydrolytic sol–gel synthesis of mesoporous TiO2 phosphonate hybrid materials was applied to
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Published 20 Dec 2019

Tailoring the magnetic properties of cobalt ferrite nanoparticles using the polyol process

  • Malek Bibani,
  • Romain Breitwieser,
  • Alex Aubert,
  • Vincent Loyau,
  • Silvana Mercone,
  • Souad Ammar and
  • Fayna Mammeri

Beilstein J. Nanotechnol. 2019, 10, 1166–1176, doi:10.3762/bjnano.10.116

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  • magnetic nanoparticles (NPs) must be highly magnetostrictive and magnetically blocked at room temperature despite their nanometer-size. We describe here the use of the polyol process to synthesize cobalt ferrite (CoxFe3−xO4) nanoparticles with controlled size and composition and the study of the
  • piezoelectric polymers. Keywords: cobalt ferrite; magnetocrystalline anisotropy; magnetostriction; nanoparticle; non-stoichiometry; polyol process; Introduction Recently, extrinsically (or artificially) magnetoelectric (ME) multiferroic (MF) materials have been seriously investigated for many applications in
  • magnetostrictive properties of cobalt ferrite materials [15]. Among the several chemical techniques that can be used for synthesizing magnetic metal-oxide NPs (such as thermal decomposition [16], hydrothermal method [17], co-precipitation of precursors [18], combustion reaction [19]), the polyol process has
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Published 04 Jun 2019

Comparative biological effects of spherical noble metal nanoparticles (Rh, Pd, Ag, Pt, Au) with 4–8 nm diameter

  • Alexander Rostek,
  • Marina Breisch,
  • Kevin Pappert,
  • Kateryna Loza,
  • Marc Heggen,
  • Manfred Köller,
  • Christina Sengstock and
  • Matthias Epple

Beilstein J. Nanotechnol. 2018, 9, 2763–2774, doi:10.3762/bjnano.9.258

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  • polyol process where compounds like ethylene glycol act as the solvent, reducing, complexing and stabilizing agent at the same time [59]. In general, chemical methods are usually based on the reduction of dissolved cationic metal species by suitable reducing agents [1]. Physical methods like laser
  • of different size and shape [61][62]. A hydrogen-based reduction in alcohols like methanol, heptanol, and propanol leads to sponge-like rhodium nanostructures [63]. Palladium nanoparticles can be synthesized either by the polyol process or by sono-, electro- and wet-chemical methods [64]. The
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Published 29 Oct 2018

Cr(VI) remediation from aqueous environment through modified-TiO2-mediated photocatalytic reduction

  • Rashmi Acharya,
  • Brundabana Naik and
  • Kulamani Parida

Beilstein J. Nanotechnol. 2018, 9, 1448–1470, doi:10.3762/bjnano.9.137

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  • suppressed the electron/hole pair recombination due to which photoreduction of Cr(VI) was increased [167]. Cu/Cu2O-decorated TiO2/alginate beads synthesized by a novel, environmentally friendly polyol process exhibited excellent photoreduction of Cr(VI). The superior performance may be attributed to the
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Published 16 May 2018

A review of carbon-based and non-carbon-based catalyst supports for the selective catalytic reduction of nitric oxide

  • Shahreen Binti Izwan Anthonysamy,
  • Syahidah Binti Afandi,
  • Mehrnoush Khavarian and
  • Abdul Rahman Bin Mohamed

Beilstein J. Nanotechnol. 2018, 9, 740–761, doi:10.3762/bjnano.9.68

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  • for preparing a catalyst such as impregnation, sol–gel, incipient-wetness, co-precipitation, electroplating, and the polyol process. Some of the catalysts prepared via these methods can achieve low temperatures of SCR with content resistance of H2O and SO2. Each method is different from the other, and
  • the carbon-based catalysts for SCR at low temperature and compared it with commercial catalysts. A good example can be seen in Chuang et al. [18], where a comparative study was made between the preparation of AC-supported Cu catalysts through impregnation, the polyol process, and microwave-heated
  • polyol process using Cu(NO3)·3H2O as the copper precursor. To date, many researchers have reviewed the SCR of NO at low temperature. Li et al. [9] reviewed low-temperature SCR on metal oxide and zeolite catalysts with a focus on catalyst performance and taking into account other possible mechanisms
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Published 27 Feb 2018

Synthesis of graphene–transition metal oxide hybrid nanoparticles and their application in various fields

  • Arpita Jana,
  • Elke Scheer and
  • Sebastian Polarz

Beilstein J. Nanotechnol. 2017, 8, 688–714, doi:10.3762/bjnano.8.74

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  • et al. where the graphene was synthesised by the arc discharge method and the Pt–graphene hybrid electrocatalysts were prepared using a polyol process. This structure exhibits enhanced electrochemical performance due to the strong metal–support interaction and proposed synergetic effect [94]. A
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Published 24 Mar 2017

Heterometal nanoparticles from Ru-based molecular clusters covalently anchored onto functionalized carbon nanotubes and nanofibers

  • Deborah Vidick,
  • Xiaoxing Ke,
  • Michel Devillers,
  • Claude Poleunis,
  • Arnaud Delcorte,
  • Pietro Moggi,
  • Gustaaf Van Tendeloo and
  • Sophie Hermans

Beilstein J. Nanotechnol. 2015, 6, 1287–1297, doi:10.3762/bjnano.6.133

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  • polyol process has been found to influence the nanoparticle size, composition, and catalytic activity [15]. In addition, other effects have been studied, such as the presence of oxygenated groups on MWNTs introduced by acid pretreatment [16], the Pt to Ru atomic ratio [17][18], the lengths and diameters
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Published 10 Jun 2015

Manganese oxide phases and morphologies: A study on calcination temperature and atmospheric dependence

  • Matthias Augustin,
  • Daniela Fenske,
  • Ingo Bardenhagen,
  • Anne Westphal,
  • Martin Knipper,
  • Thorsten Plaggenborg,
  • Joanna Kolny-Olesiak and
  • Jürgen Parisi

Beilstein J. Nanotechnol. 2015, 6, 47–59, doi:10.3762/bjnano.6.6

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  • the fact that a single precursor can be used to obtain several different products. Additionally, the calcination procedure is the only way to obtain pure phase Mn5O8 [28][29][30][31][32][33]. Here, we present the synthesis of nanocrystalline Mn(II) glycolate by a polyol process and demonstrate its
  • suitability as a precursor in the synthesis of different manganese oxides. The polyol process is a well-known route for the synthesis of metal glycolates, usually yielding disc-shaped particles with diameters and thicknesses in the range of 1 to 3 µm and 100 to 250 nm, respectively [19][29][34][35]. By
  • and Discussion Precursor synthesis The polyol process reported by Liu et al. [19] was modified to yield the Mn(II) glycolate precursor for the thermal decomposition to the various manganese oxides. During the heating of the compound to 170 °C, a white precipitate appeared after 1 h, which was
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Published 06 Jan 2015

PVP-coated, negatively charged silver nanoparticles: A multi-center study of their physicochemical characteristics, cell culture and in vivo experiments

  • Sebastian Ahlberg,
  • Alexandra Antonopulos,
  • Jörg Diendorf,
  • Ralf Dringen,
  • Matthias Epple,
  • Rebekka Flöck,
  • Wolfgang Goedecke,
  • Christina Graf,
  • Nadine Haberl,
  • Jens Helmlinger,
  • Fabian Herzog,
  • Frederike Heuer,
  • Stephanie Hirn,
  • Christian Johannes,
  • Stefanie Kittler,
  • Manfred Köller,
  • Katrin Korn,
  • Wolfgang G. Kreyling,
  • Fritz Krombach,
  • Jürgen Lademann,
  • Kateryna Loza,
  • Eva M. Luther,
  • Marcelina Malissek,
  • Martina C. Meinke,
  • Daniel Nordmeyer,
  • Anne Pailliart,
  • Jörg Raabe,
  • Fiorenza Rancan,
  • Barbara Rothen-Rutishauser,
  • Eckart Rühl,
  • Carsten Schleh,
  • Andreas Seibel,
  • Christina Sengstock,
  • Lennart Treuel,
  • Annika Vogt,
  • Katrin Weber and
  • Reinhard Zellner

Beilstein J. Nanotechnol. 2014, 5, 1944–1965, doi:10.3762/bjnano.5.205

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  • silver nanoparticles with defined shapes and sizes is extensively described in the literature, with more than 50 publications alone by the group of Xia et al. [21]. The most common and best examined method is the polyol process during which an ionic silver salt (typically silver nitrate or silver
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Published 03 Nov 2014
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