Ceria/silicon carbide core–shell materials prepared by miniemulsion technique

• Lars Borchardt,
• Martin Oschatz,
• Robert Frind,
• Emanuel Kockrick,
• Martin R. Lohe,
• Christoph P. Hauser,
• Clemens K. Weiss,
• Katharina Landfester,
• Bernd Büchner and
• Stefan Kaskel

Beilstein J. Nanotechnol. 2011, 2, 638–644, doi:10.3762/bjnano.2.67

• methacrylate (MMA) or acrylic acid. Furthermore the prevalent problem of sphere sintering during pyrolysis has been overcome by means of a coating procedure. In this contribution, we describe the functionalization of SiC spheres with ceria shells. Ceria is known as an oxidation catalyst for soot combustion

• CTAB or Lutensol AT50 (Figure 3). The green PCS spheres exhibited a low specific surface area of ~9 m2.g−1. Functionalization and pyrolysis The dispersion of PCS spheres can be destabilized either by adding acetone, by the evaporation of water at 353 K overnight, or by centrifugation. Subsequently, the

• resulting PCS spheres are either pyrolyzed instantaneously or functionalized before pyrolysis. The latter results in a core–shell-structured hybrid material. A promising method for the synthesis of core–shell hybrid materials in general was described by Landfester et al. [36]. They created surface

Studies towards synthesis, evolution and alignment characteristics of dense, millimeter long multiwalled carbon nanotube arrays

• Pitamber Mahanandia,
• Jörg J. Schneider,
• Martin Engel,
• Bernd Stühn,
• Somanahalli V. Subramanyam and
• Karuna Kar Nanda

Beilstein J. Nanotechnol. 2011, 2, 293–301, doi:10.3762/bjnano.2.34

• and length 70 cm, closed at one end [53][54][55]. The other end of the quartz tube was connected to a rubber bladder to collect the exhaust gases. The precursors were vaporized inside a horizontal furnace and heated to the desired pyrolysis temperature (range 650–1100 °C) at a rate of 20 °C/min. When

Aerosol assisted fabrication of two dimensional ZnO island arrays and honeycomb patterns with identical lattice structures

• Mitsuhiro Numata and
• Yoshihiro Koide

Beilstein J. Nanotechnol. 2010, 1, 71–74, doi:10.3762/bjnano.1.9

• monolayer on SiO2/Si substrates. Subsequent pyrolysis converts the precursor to crystalline TiO2 with concomitant removal of the polystyrene. The resulting TiO2 seed pattern was then used to direct ZnO nanocrystals growth in a one-pot solution process [2][9][26][27]. In addition, this type of laminated