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  • 1
    Language: English
    In: Journal of Bacteriology, pp. 6618-6619
    Description: Article discussing the draft genome sequence of the cyanide-utilizing bacterium 'Pseudomonas fluorescens' strain NCIMB 11764.
    Keywords: Pseudomanas Fluorescens ; Genetics ; Cyanide
    ISSN: 00219193
    E-ISSN: 10985530
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  • 2
    Language: English
    In: Carbon, December 2014, Vol.80, pp.229-234
    Description: The time-consuming purification of graphene oxide (GO) including reduction of the excessive ionic strength represents a serious bottleneck for its mass production. Moreover, for the application as a filler in polymer nanocomposites, the hydrophilic GO has to be organophilized by cation exchange, e.g. with alkylammonium. Here, we propose a facile one-step process that produces highly delaminated organically modified GO suspended in various organic solvents and which spares any additional purification steps. The organically modified GO is instead directly extracted from the oxidation mixture into diethyl ether with the help of 1-dodecylamine. The organically modified GO can then be transferred into a broad variety of organic solvents. Elemental analysis shows the extracted GO to be highly pure and atomic force microscopy images suggest that surprisingly, the material was even delaminated.
    Keywords: Chemistry
    ISSN: 0008-6223
    E-ISSN: 1873-3891
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  • 3
    Language: English
    In: Carbon, Dec, 2014, Vol.80, p.229(6)
    Description: To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.carbon.2014.08.061 Byline: Patrick Feicht, Daniel A. Kunz, Anton Lerf, Josef Breu Abstract: The time-consuming purification of graphene oxide (GO) including reduction of the excessive ionic strength represents a serious bottleneck for its mass production. Moreover, for the application as a filler in polymer nanocomposites, the hydrophilic GO has to be organophilized by cation exchange, e.g. with alkylammonium. Here, we propose a facile one-step process that produces highly delaminated organically modified GO suspended in various organic solvents and which spares any additional purification steps. The organically modified GO is instead directly extracted from the oxidation mixture into diethyl ether with the help of 1-dodecylamine. The organically modified GO can then be transferred into a broad variety of organic solvents. Elemental analysis shows the extracted GO to be highly pure and atomic force microscopy images suggest that surprisingly, the material was even delaminated. Article History: Received 13 May 2014; Accepted 16 August 2014
    Keywords: Graphene -- Analysis ; Graphite -- Analysis
    ISSN: 0008-6223
    Source: Cengage Learning, Inc.
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  • 4
    Language: English
    In: Langmuir : the ACS journal of surfaces and colloids, 29 January 2013, Vol.29(4), pp.1280-5
    Description: Applying a combination of melt synthesis followed by long-term annealing a fluorohectorite is obtained which is unique with respect to homogeneity, purity, and particle size. Counterintuitively, the hectorite undergoes a disorder-to-order transition upon swelling to the level of the bilayer hydrate. Alkylammonium-exchanged samples show at any chain length only a single basal spacing corroborating a nicely homogeneous layer charge density. Its intracrystalline reactivity improves greatly upon annealing, making it capable to spontaneously and completely disintegrate into single clay lamellae of 1 nm thickness. Realizing exceptional aspect ratios of around 20,000 upon delamination, this synthetic clay will offer unprecedented potential as functional filler in highly transparent nanocomposites with superior gas barrier and mechanical properties.
    Keywords: Aspektverhältnis ; Dicke ; Doppelschicht ; Erwärmen ; Füllstoff ; Hektorit ; Homogenität ; Hydrat ; Ladungsdichte ; Lamelle ; Lichtdurchlässigkeit ; Mechanische Eigenschaft ; Nanokomposit ; Partikelgröße ; Quellung ; Reaktivität (Reaktionsfähigkeit) ; Schichtablösung ; Schmelze ; Synthese ; Tonmineral ; Unordnungs-Ordnungs-Vorgang ; Ionenaustausch ; Reinheit (Chemisch) ; Chemistry;
    ISSN: 07437463
    E-ISSN: 1520-5827
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  • 5
    Language: English
    In: Chemistry of Materials, 05/11/2010, Vol.22(9), pp.2916-2922
    Description: A new route of in situ formation and stabilization of ultrathin, needle-like manganese dioxide nanoparticles (MnO2NP) in aqueous solution by using spherical polyelectrolyte brush particles (SPB) is presented. The SPB that act as carrier particles consist of a solid polystyrene core of about 50 nm radius onto which long chains of the positively charged polyelectrolyte poly(trimethyl ammonium ethyl methacrylate chloride) (pTMAEMC) are grafted to yield an overall radius of about 85 nm. Potassium permanganate (KMnO4) is directly reduced within the brush layer of these particles because of the basic environment within this layer. This mechanism appears to limit the size of the MnO2NP to the dimensions of the brush layer. Powder X-ray diffraction, (PXRD), transmission electron microscopy (TEM), and cryogenic transmission electron microscopy (cryoTEM) prove that birnessite-type MnO2NP with a c*-disorder are generated on the SPB without adding any reducing agent. The birnessite nanoparticles have an average lengt...
    Keywords: Engineering ; Chemistry;
    ISSN: 0897-4756
    E-ISSN: 1520-5002
    Source: American Chemical Society (via CrossRef)
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  • 6
    Language: German
    In: Der Betrieb : mit Recht Innovation sichern, 2015, Vol.68(8), pp. 426-427
    ISSN: 00059935
    Source: Deutsche Zentralbibliothek für Wirtschaftswissenschaften
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  • 7
    Language: English
    In: China-EU Law Journal, 2013, Vol.1(3), pp.135-139
    Keywords: Law ; Public International Law ; Private International Law, International & Foreign Law, Comparative Law ; European Integration ; Law;
    ISSN: 1868-5153
    E-ISSN: 1868-5161
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  • 8
    Language: German
    In: Der Betrieb, 2017, Vol.70(37), pp. 2148-2149
    ISSN: 00059935
    Source: Deutsche Zentralbibliothek für Wirtschaftswissenschaften
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  • 9
    Language: German
    In: Der Betrieb : mit Recht Innovation sichern, 2015, Vol.68(15), pp. 854-856
    ISSN: 00059935
    Source: Deutsche Zentralbibliothek für Wirtschaftswissenschaften
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  • 10
    Language: German
    In: Der Betrieb : mit Recht Innovation sichern, 2015, Vol.68(27), pp. 1583-1584
    ISSN: 00059935
    Source: Deutsche Zentralbibliothek für Wirtschaftswissenschaften
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