American Journal of Nano Research and Applications

Volume 2, Issue 6, December 2014

  • Tailored Nano- and Micrometer Sized Structures of Gold-Nanoparticles at Polymeric Surfaces Via Photochemical and Kinetic Control of the Synthesis and Deposition Process

    Christian Elsner, Andrea Prager, Ulrich Decker, Sergej Naumov, Bernd Abel

    Issue: Volume 2, Issue 6-1, December 2014
    Pages: 1-8
    Received: 2 November 2014
    Accepted: 4 November 2014
    Published: 23 December 2014
    DOI: 10.11648/j.nano.s.2014020601.11
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    This article belongs to the Special Issue Advanced Functional Materials
    Abstract: The goal of the present work is to elucidate complex nano- and micrometer surface modification of soft materials via photochemical and kinetic control of the synthesis and deposition process of gold-nanoparticles. The key to this technology is the synthesis of gold-nanoparticles from different HAuCl4 precursor solutions with photons of a defined sh... Show More
  • Efficient Route to High-Quality Graphene Materials: Kinetically Controlled Electron Beam Induced Reduction of Graphene Oxide in Aqueous Dispersion

    Roman Flyunt, Wolfgang Knolle, Axel Kahnt, Siegfried Eigler, Andriy Lotnyk, Tilmann Häupl, Andrea Prager, Dirk Guldi, Bernd Abel

    Issue: Volume 2, Issue 6-1, December 2014
    Pages: 9-18
    Received: 2 November 2014
    Accepted: 4 November 2014
    Published: 23 December 2014
    DOI: 10.11648/j.nano.s.2014020601.12
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    This article belongs to the Special Issue Advanced Functional Materials
    Abstract: This work is presenting a highly efficient, cost-efficient and environmentally friendly method for the production of graphene materials (reduced graphene oxide, RedGO) via electron beam (EB) irradiation of aqueous dispersions of graphene oxide (GO). Our strategy here is based on a reduction of GO via EB irradiation under optimally controlled condit... Show More
  • Comparison of Four Ionic Liquid Force Fields to an Ab Initio Molecular Dynamics Simulation

    Stefan Zahn, Richard Cybik

    Issue: Volume 2, Issue 6-1, December 2014
    Pages: 19-26
    Received: 10 November 2014
    Accepted: 25 November 2014
    Published: 23 December 2014
    DOI: 10.11648/j.nano.s.2014020601.13
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    This article belongs to the Special Issue Advanced Functional Materials
    Abstract: The reliability of four force fields developed for 1-alkyl-3-methylimidazolium bis¬(tri¬fluoro¬methylsulfonyl)imide ionic liquids are compared to an ab inito molecular dynamics simulation regarding structural properties. Except the hydrogen bond structure between the most acidic hydrogen atom of the imidazolium ring and the nitrogen atom of the ani... Show More
  • High Resolution Imaging of a Multi-Walled Carbon Nanotube with Energy-Filtered Photoemission Electron Microscopy

    Andreas Neff, Olga Naumov, Timna-Josua Kühn, Nils Weber, Michael Merkel, Bernd Abel, Aron Varga, Katrin R. Siefermann

    Issue: Volume 2, Issue 6-1, December 2014
    Pages: 27-33
    Received: 15 November 2014
    Accepted: 19 November 2014
    Published: 23 December 2014
    DOI: 10.11648/j.nano.s.2014020601.14
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    This article belongs to the Special Issue Advanced Functional Materials
    Abstract: Photoemission electron microscopy (PEEM) is a powerful and well established tool in surface science. In recent years, PEEM has been increasingly applied to new terrain, such as imaging of complex nano-objects and functional molecular materials, as well as time-resolved experiments. When applying PEEM to such new terrain, information on the mechanis... Show More
  • A Flexible Research Reactor for Atomic Layer Deposition with a Sample-Transport Chamber for in Vacuo Analytics

    Axel Sobottka, Lutz Drößler, C. Hossbach, Bernd Abel, Ulrike Helmstedt

    Issue: Volume 2, Issue 6-1, December 2014
    Pages: 34-38
    Received: 16 November 2014
    Accepted: 19 November 2014
    Published: 23 December 2014
    DOI: 10.11648/j.nano.s.2014020601.15
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    This article belongs to the Special Issue Advanced Functional Materials
    Abstract: A modular reactor for thermal atomic layer deposition (ALD) was designed, which allows changes of all reactor components in order to obtain a flexible set-up for research purpose. A sample transport chamber is included for dual purpose. It allows for in vacuo transport of samples to analytical devices such as an XPS instrument. Surface activation o... Show More
  • Optical Switching of Azophenol Derivatives in Solution and in Polymer Thin Films: The Role of Chemical Substitution and Environment

    Yasser M. Riyad, Sergej Naumov, Jan Griebel, Christian Elsner, Ralf Hermann, Katrin R. Siefermann, Bernd Abel

    Issue: Volume 2, Issue 6-1, December 2014
    Pages: 39-52
    Received: 16 November 2014
    Accepted: 19 November 2014
    Published: 23 December 2014
    DOI: 10.11648/j.nano.s.2014020601.16
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    This article belongs to the Special Issue Advanced Functional Materials
    Abstract: Design of polymer materials whose properties can be reversibly changed by illumination with light is a technology of particular scientific interest. Such materials contain molecular chromophors, which change their geometry and/or polarity upon absorption of light of a specific wavelength. The most prominent chromophores are azobenzene derivatives. ... Show More
  • Investigations on the Hydrothermal Synthesis of Pure and Mg-Doped Nano-CuCrO2

    Dirk Friedrich

    Issue: Volume 2, Issue 6-1, December 2014
    Pages: 53-60
    Received: 16 November 2014
    Accepted: 19 November 2014
    Published: 23 December 2014
    DOI: 10.11648/j.nano.s.2014020601.17
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    This article belongs to the Special Issue Advanced Functional Materials
    Abstract: This paper presents some investigations on the hydrothermal synthesis of nano-CuCrO2. Several successively altered synthesis protocols are used to investigate effects of changing the mineralizer amount, lowering reaction temperature and addition of a reducing agent. As a result modified protocols for the hydrothermal synthesis of pure and Mg-doped ... Show More
  • Progress in Solid Acid Fuel Cell Electrodes

    Aron Varga

    Issue: Volume 2, Issue 6-1, December 2014
    Pages: 61-65
    Received: 15 November 2014
    Accepted: 23 December 2014
    Published: 23 December 2014
    DOI: 10.11648/j.nano.s.2014020601.18
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    This article belongs to the Special Issue Advanced Functional Materials
    Abstract: Solid acid fuel cells represent a relatively new technology with the advantage of an intermediate operating temperature of 240°C and a solid state proton conducting electrolyte (CsH2PO4). Widespread commercial application has been hindered mainly by low performance and costly electrodes containing a high Pt loading. Here we review the recent progre... Show More