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Search for "catalysis" in Full Text gives 303 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

Photocatalysis applications of some hybrid polymeric composites incorporating TiO2 nanoparticles and their combinations with SiO2/Fe2O3

  • Andreea Laura Chibac,
  • Tinca Buruiana,
  • Violeta Melinte and
  • Emil C. Buruiana

Beilstein J. Nanotechnol. 2017, 8, 272–286, doi:10.3762/bjnano.8.30

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  • excellent ability to adsorb aromatic compounds through π–π stacking and other molecular interactions, enhancing the catalysis effect due to the presence of other inorganic components. Also, in the case of the composites with TiO2/Si–O–Si (S2) or TiO2/Fe2O3/Si–O–Si (S4) the presence of a higher number of
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Published 27 Jan 2017

Influence of hydrofluoric acid treatment on electroless deposition of Au clusters

  • Rachela G. Milazzo,
  • Antonio M. Mio,
  • Giuseppe D’Arrigo,
  • Emanuele Smecca,
  • Alessandra Alberti,
  • Gabriele Fisichella,
  • Filippo Giannazzo,
  • Corrado Spinella and
  • Emanuele Rimini

Beilstein J. Nanotechnol. 2017, 8, 183–189, doi:10.3762/bjnano.8.19

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  • shown quite interesting applications in the fields of Si nanowire (SiNW) catalysis [1][2][3], metal-assisted etching (MAE) [4] or even as electrical contacts in standard miniaturized devices [5]. Their ability to display enhanced surface plasmon resonance (SPR) at optical frequencies makes them
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Published 18 Jan 2017

Photo-ignition process of multiwall carbon nanotubes and ferrocene by continuous wave Xe lamp illumination

  • Paolo Visconti,
  • Patrizio Primiceri,
  • Daniele Longo,
  • Luciano Strafella,
  • Paolo Carlucci,
  • Mauro Lomascolo,
  • Arianna Cretì and
  • Giuseppe Mele

Beilstein J. Nanotechnol. 2017, 8, 134–144, doi:10.3762/bjnano.8.14

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  • and its derivatives mixed with other gaseous or liquid materials find more and more use in several areas [17] such as asymmetric catalysis, nonlinear optics [18], electro-chemistry [19] (due to the quasi-reversible oxidation of iron, e.g., Fe(II) oxide), and finally, in advanced fuel combustion
  • catalysis of photo-chemically induced reactions). From a fundamental viewpoint, the photo-chemical behavior of ferrocene and its derivatives is a topic of increasing interest. New applications are emerging in which ferrocene acts as a redox center to allow the occurrence of energy and electron transfer
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Published 13 Jan 2017

From iron coordination compounds to metal oxide nanoparticles

  • Mihail Iacob,
  • Carmen Racles,
  • Codrin Tugui,
  • George Stiubianu,
  • Adrian Bele,
  • Liviu Sacarescu,
  • Daniel Timpu and
  • Maria Cazacu

Beilstein J. Nanotechnol. 2016, 7, 2074–2087, doi:10.3762/bjnano.7.198

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  • groups on the surface of nanoparticles [17][18] is useful for broadening the field of applications in medicine or catalysis [5][17]. Although there are currently numerous methods for the preparation of iron oxides nanoparticles, scientists are working to further improve existing methods and are
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Published 28 Dec 2016

Intercalation and structural aspects of macroRAFT agents into MgAl layered double hydroxides

  • Dessislava Kostadinova,
  • Ana Cenacchi Pereira,
  • Muriel Lansalot,
  • Franck D’Agosto,
  • Elodie Bourgeat-Lami,
  • Fabrice Leroux,
  • Christine Taviot-Guého,
  • Sylvian Cadars and
  • Vanessa Prevot

Beilstein J. Nanotechnol. 2016, 7, 2000–2012, doi:10.3762/bjnano.7.191

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  • , France CNRS, UMR 6296, ICCF, F-63171 Aubière, France Univ Lyon, Université Claude Bernard Lyon 1, CPE Lyon, CNRS 5265, Chemistry, Catalysis, Polymers and Processes (C2P2), 43 Bvd du 11 Novembre 1918, 69616 Villeurbanne, France Institut des Matériaux Jean Rouxel (IMN) - UMR6502, 2 rue de la Houssinière
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Published 15 Dec 2016

Hydrophilic silver nanoparticles with tunable optical properties: application for the detection of heavy metals in water

  • Paolo Prosposito,
  • Federico Mochi,
  • Erica Ciotta,
  • Mauro Casalboni,
  • Fabio De Matteis,
  • Iole Venditti,
  • Laura Fontana,
  • Giovanna Testa and
  • Ilaria Fratoddi

Beilstein J. Nanotechnol. 2016, 7, 1654–1661, doi:10.3762/bjnano.7.157

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  • the field of sensors for specific analytes [7][8][9][10]. In particular, given their flexible and easy preparation, large specific surface area, and surface plasmon resonance (SPR) properties, metal nanoparticles are excellent candidates for a wide variety of applications ranging from catalysis [11
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Published 09 Nov 2016

Polystyrene-block-poly(ethylene oxide) copolymers as templates for stacked, spherical large-mesopore silica coatings: dependence of silica pore size on the PS/PEO ratio

  • Roberto Nisticò,
  • Giuliana Magnacca,
  • Sushilkumar A. Jadhav and
  • Dominique Scalarone

Beilstein J. Nanotechnol. 2016, 7, 1454–1460, doi:10.3762/bjnano.7.137

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  • ; mesoporous silica; soft templating; sol–gel; Introduction Mesoporous materials with large, tunable porosity are currently being investigated as selective molecular sieves, finding potential applications in many fields such as catalysis, encapsulation of proteins, filtration and separation of large molecules
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Published 14 Oct 2016

Deformation-driven catalysis of nanocrystallization in amorphous Al alloys

  • Rainer J. Hebert,
  • John H. Perepezko,
  • Harald Rösner and
  • Gerhard Wilde

Beilstein J. Nanotechnol. 2016, 7, 1428–1433, doi:10.3762/bjnano.7.134

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Published 11 Oct 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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  • and catalysis [2]. One attractive method to produce nanostructured metals with macroscopic dimensions is dealloying, an (electro-)chemical process, which removes the less noble component from an alloy by selective etching [3]. Nanoporous palladium (np-Pd) produced by free corrosion [4] as well as
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Published 17 Aug 2016

High antiviral effect of TiO2·PL–DNA nanocomposites targeted to conservative regions of (−)RNA and (+)RNA of influenza A virus in cell culture

  • Asya S. Levina,
  • Marina N. Repkova,
  • Elena V. Bessudnova,
  • Ekaterina I. Filippova,
  • Natalia A. Mazurkova and
  • Valentina F. Zarytova

Beilstein J. Nanotechnol. 2016, 7, 1166–1173, doi:10.3762/bjnano.7.108

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  • Asya S. Levina Marina N. Repkova Elena V. Bessudnova Ekaterina I. Filippova Natalia A. Mazurkova Valentina F. Zarytova Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of Russian Academy of Sciences, pr. Lavrent’eva 8, Novosibirsk, 630090, Russia Institute of Catalysis
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Published 10 Aug 2016

Microscopic characterization of Fe nanoparticles formed on SrTiO3(001) and SrTiO3(110) surfaces

  • Miyoko Tanaka

Beilstein J. Nanotechnol. 2016, 7, 817–824, doi:10.3762/bjnano.7.73

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  • microscopy (TEM); Wulff construction; Introduction Metal nanoparticles on oxide substrates are one of the key materials in modern technology. Not only are they widely used in catalysis, there are also potential applications in nanoelectronics, spintronics, photonics, sensors, and fuel cells [1][2][3][4][5
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Published 07 Jun 2016

Facile synthesis of water-soluble carbon nano-onions under alkaline conditions

  • Gaber Hashem Gaber Ahmed,
  • Rosana Badía Laíño,
  • Josefa Angela García Calzón and
  • Marta Elena Díaz García

Beilstein J. Nanotechnol. 2016, 7, 758–766, doi:10.3762/bjnano.7.67

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  • carbonization; Introduction In the last twenty years, carbon based nanomaterials have received much research attention not only from a basic perspective but also from a practical point of view due to their use in a range of applications such as energy storage, tribology, electronics, medicine, catalysis and
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Published 27 May 2016

Hierarchical coassembly of DNA–triptycene hybrid molecular building blocks and zinc protoporphyrin IX

  • Rina Kumari,
  • Sumit Singh,
  • Mohan Monisha,
  • Sourav Bhowmick,
  • Anindya Roy,
  • Neeladri Das and
  • Prolay Das

Beilstein J. Nanotechnol. 2016, 7, 697–707, doi:10.3762/bjnano.7.62

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  • ][4][5][6][7][8][9][10], polymers [11], metal complexes [12][13], and nanoparticles [14] have recently attracted substantial attention. These have potential applications in DNA detection [15][16][17], molecular electronics [18][19][20], catalysis [21], and drug delivery [22][23]. For the creation of
  • well-defined DNA nanostructures [40]. Additionally; these DNA–organic hybrids are endowed with better base pairing fidelity, stability, DNA economy and others [41][42]. Supramolecular structures having a confined space can accommodate small molecules that are suitable for catalysis and other
  • regard to the light-induced oxidation of DHR 123 than the corresponding free Zn PpIX due to enhanced local confinement of ROS in the composite. Therefore, considering this feature, this system could be explored further for PDT, photodynamic antimicrobial chemotherapy (PACT) and catalysis applications
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Published 12 May 2016

Novel roles for well-known players: from tobacco mosaic virus pests to enzymatically active assemblies

  • Claudia Koch,
  • Fabian J. Eber,
  • Carlos Azucena,
  • Alexander Förste,
  • Stefan Walheim,
  • Thomas Schimmel,
  • Alexander M. Bittner,
  • Holger Jeske,
  • Hartmut Gliemann,
  • Sabine Eiben,
  • Fania C. Geiger and
  • Christina Wege

Beilstein J. Nanotechnol. 2016, 7, 613–629, doi:10.3762/bjnano.7.54

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  • conjunction with a plentitude of protocols established for the deposition of TMV on technical surfaces, it is thus likely that TMV will take over routine jobs in appropriate layouts in the longer run, and continue to forge ahead in encouraging novel concepts in biodetection, catalysis, electronics and further
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Published 25 Apr 2016

Orientation of FePt nanoparticles on top of a-SiO2/Si(001), MgO(001) and sapphire(0001): effect of thermal treatments and influence of substrate and particle size

  • Martin Schilling,
  • Paul Ziemann,
  • Zaoli Zhang,
  • Johannes Biskupek,
  • Ute Kaiser and
  • Ulf Wiedwald

Beilstein J. Nanotechnol. 2016, 7, 591–604, doi:10.3762/bjnano.7.52

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  • Martin Schilling Paul Ziemann Zaoli Zhang Johannes Biskupek Ute Kaiser Ulf Wiedwald Institute of Solid State Physics, Ulm University, 89069 Ulm, Germany Institute of Surface Chemistry and Catalysis, Ulm University, 89069 Ulm, Germany Electron Microscopy Group of Materials Science, Ulm University
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Published 21 Apr 2016

Antibacterial activity of silver nanoparticles obtained by pulsed laser ablation in pure water and in chloride solution

  • Brunella Perito,
  • Emilia Giorgetti,
  • Paolo Marsili and
  • Maurizio Muniz-Miranda

Beilstein J. Nanotechnol. 2016, 7, 465–473, doi:10.3762/bjnano.7.40

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  • : antibacterial activity; colloid; laser ablation; nanoparticles; silver; Introduction The interest in nanoscale metal particles is constantly growing as they find wide application in diverse fields ranging from sensing [1][2][3], medicine [4], catalysis [5][6][7][8], to astrobiology [9][10] and many others. In
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Published 18 Mar 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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  • metal nanoparticles as needed in catalysis has shown its theoretical ability as an extremely environmentally friendly production method in the last few years, even though the separation of the nanoparticles is challenging. Biosynthesis, summing up biosorption and bioreduction of diluted metal ions to
  • since there are widespread possibilities of usage [1][2][3]. Especially Au0-nanoparticles are used, e.g., in heterogeneous catalysis [4][5][6] or in various medical applications [7][8]. There is a growing field of research in microbiological approaches for the production of nanoparticles since more than
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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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  • various applications such as catalysis, sensor development, hydrogen storage, thin films, and molecular electronics has focused on the study of self-assembled monolayers (SAMs) with different combinations of molecular architecture, and in particular, different molecule anchoring head groups. The latter
  • particular the characteristics of charge transport through such a sulfidic interface layer would be strongly affected. In the context of the use of nanoparticles in various applications [49][50][51][52] such as in catalysis, sensing or hydrogen storage, capping the nanoparticles using thiols leads to
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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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  • energy transfer techniques for the production of metallic NPs are reviewed. Review Applications of nanotechnology Due to smaller size and large specific area, NPs exhibit exceptional properties for applications in different fields including chemistry (catalysis, sensors, and polymers), physics (optics
  • , surface-enhanced Raman scattering (SERS) detection and catalysis of chemical reactions. Furthermore, biocompatible and functionalized NPs have applications in diagnosis and treatment of cancer. For these two purposes, fluorescent and magnetic nanocrystals for detection of tumors and also nanosystems for
  • synthesis of metallic NPs, using biopolymers such as chitosan can eliminate the need to use capping agents [56][86][99]. Catalysis: Selecting proper catalytic reactions can enhance the overall efficiency of the process by decreasing the activation energy and increasing product selectivity. These advantages
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Published 10 Dec 2015

Self-organization of gold nanoparticles on silanated surfaces

  • Htet H. Kyaw,
  • Salim H. Al-Harthi,
  • Azzouz Sellai and
  • Joydeep Dutta

Beilstein J. Nanotechnol. 2015, 6, 2345–2353, doi:10.3762/bjnano.6.242

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  • structures [8]. AuNPs have been studied intensively for a wide range of applications such as catalysis [9], biosensing [10], colorimetric sensing [11], optical sensing (surface plasmon resonance (SPR) and surface-enhanced Raman scattering (SERS)) [12][13], photonics [13][14], photovoltaic devices [15] and
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Published 10 Dec 2015

Green synthesis, characterization and catalytic activity of natural bentonite-supported copper nanoparticles for the solvent-free synthesis of 1-substituted 1H-1,2,3,4-tetrazoles and reduction of 4-nitrophenol

  • Akbar Rostami-Vartooni,
  • Mohammad Alizadeh and
  • Mojtaba Bagherzadeh

Beilstein J. Nanotechnol. 2015, 6, 2300–2309, doi:10.3762/bjnano.6.236

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  • onto the Cu surface; followed by electron transfer from the BH4− to 4-NP; and finally, desorption of the generated 4-aminophenol from the surface of the catalyst [37][38]. Since catalysis takes place on the Cu surface, Cu NPs/bentonite are much more reactive than the unmodified natural bentonite
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Published 03 Dec 2015

Electrochemical coating of dental implants with anodic porous titania for enhanced osteointegration

  • Amirreza Shayganpour,
  • Alberto Rebaudi,
  • Pierpaolo Cortella,
  • Alberto Diaspro and
  • Marco Salerno

Beilstein J. Nanotechnol. 2015, 6, 2183–2192, doi:10.3762/bjnano.6.224

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  • anodic porous titania (APT). APT is usually of interest for applications in catalysis or optoelectronics [7]. Here we present its use as a coating for nanopatterning the surfaces of dental implants. One advantage of APT for applications in biomedicine is with respect to its analogue obtained on Al
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Published 20 Nov 2015

NanoE-Tox: New and in-depth database concerning ecotoxicity of nanomaterials

  • Katre Juganson,
  • Angela Ivask,
  • Irina Blinova,
  • Monika Mortimer and
  • Anne Kahru

Beilstein J. Nanotechnol. 2015, 6, 1788–1804, doi:10.3762/bjnano.6.183

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  • , 31%), catalysis (10,435, 11%) and drug delivery (8,838, 10%) (Figure 1, Table S1, Supporting Information File 1). However, the exact production volumes of ENMs are not publicly available [4]. Piccinno et al. estimated based on a survey sent to companies producing and using ENMs that the most produced
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Published 25 Aug 2015

Atomic scale interface design and characterisation

  • Carla Bittencourt,
  • Chris Ewels and
  • Arkady V. Krasheninnikov

Beilstein J. Nanotechnol. 2015, 6, 1708–1711, doi:10.3762/bjnano.6.174

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  • chemical properties and processes occurring at the surface on a nanoscale are of crucial concern. Nanostructured materials show a great application potential in the areas of nanoelectronics, catalysis, and light harvesting/energy storage, an excellent example being the capability of titanate nanoribbons to
  • simulation of nanoparticle shapes. In the past decade, many TEM and catalysis experiments were simulated using this multi-scale approach with remarkable success. First-principle calculations have also provided insight into the electronic properties of low-dimensional materials, for example graphene doping by
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Published 10 Aug 2015

Synthesis, characterization and in vitro biocompatibility study of Au/TMC/Fe3O4 nanocomposites as a promising, nontoxic system for biomedical applications

  • Hanieh Shirazi,
  • Maryam Daneshpour,
  • Soheila Kashanian and
  • Kobra Omidfar

Beilstein J. Nanotechnol. 2015, 6, 1677–1689, doi:10.3762/bjnano.6.170

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  • as catalysis, electronics, photonics, sensors, microfluidic lateral flow devices, medical diagnosis, and related sciences [6][7][8][9][10]. One of the most important classes of metal nanoparticles are magnetic nanoparticles. Due to their unique properties, such as magnetic resonance momentum, super
  • . The efficacy of these TMC- and Au-containing magnetic nanostructures could benefit applications such as electrochemical labels, sensory probes, electronic conductors, therapeutic agents, organic photovoltaics, drug delivery in biological and medical applications, and catalysis due to their combined
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Published 03 Aug 2015
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