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Search for "core–shell structure" in Full Text gives 59 result(s) in Beilstein Journal of Nanotechnology.
Enhanced photocatalytic activity of Ag–ZnO hybrid plasmonic nanostructures prepared by a facile wet chemical method
Beilstein J. Nanotechnol. 2014, 5, 639–650, doi:10.3762/bjnano.5.75
- summarized as follows [29][30] and are schematically illustrated in Figure 8. Yin et al. [41] prepared nanocomposites with Ag nanoparticle decorated ZnO nanorods with a core–shell structure by seed-mediated method. They have shown that Ag–ZnO is a better photocatalyst than ZnO because, firstly, the
Dye-sensitized Pt@TiO2 core–shell nanostructures for the efficient photocatalytic generation of hydrogen
Beilstein J. Nanotechnol. 2014, 5, 360–364, doi:10.3762/bjnano.5.41
- shown in Figure 4, after the individual irradiation with light A (550 ± 20 nm) or light B (400 ± 10 nm) for 2 h, the ErB-sensitized Pt@TiO2 core–shell structure showed generated H2 amounts of 4.5 μmol and 5.3 μmol, respectively. However, when light A and light B are used simultaneously, to our surprise
- , the 2 h irradiation led to a H2 amount of 15.9 μmol, which is significantly higher than the sum of the two generated H2 amounts under individual irradiation of light A and B (9.8 μmol). This observation suggests that in the ErB-sensitized Pt@TiO2 core–shell structure, a synergic effect exists between
- generation amount under individual irradiation of light A and B (7.2 μmol). This indicates that the synergic effect may also exist in the Pt-loaded TiO2 particles, but with a less significant role as compared to the Pt@TiO2 core–shell structure. This may be because the post-loaded Pt nanoparticles are
Photovoltaic properties of ZnO nanorods/p-type Si heterojunction structures
Beilstein J. Nanotechnol. 2014, 5, 173–179, doi:10.3762/bjnano.5.17
- not only nanorods but also fill in the gaps between them (Figure 4). Samples A and B show a core-shell structure with the zinc oxide nanorod being the core and the AZO layer being the shell. For closely packed nanorods (sample C) the AZO film is grown only on the top of the nanorods. However, we also
A facile synthesis of a carbon-encapsulated Fe3O4 nanocomposite and its performance as anode in lithium-ion batteries
Beilstein J. Nanotechnol. 2013, 4, 699–704, doi:10.3762/bjnano.4.79
- longer tubes, the particles were embedded in several places within the tube. TEM images of the nanogranular region of the composite confirmed the presence of a core–shell structure, containing Fe3O4 cores and graphitic onions shells. The interface between graphitic carbon and Fe3O4 with short-range
Highly ordered ultralong magnetic nanowires wrapped in stacked graphene layers
Beilstein J. Nanotechnol. 2012, 3, 846–851, doi:10.3762/bjnano.3.95
- , typically 12) [25][28]. In order to prove that these nanowires have a core–shell structure with a nickel core and graphene stacking shell, they were placed on a carbon-coated copper grid and their surfaces were examined by TEM (Figure 3a). A typical high-resolution TEM micrograph of the surface of a
Magnetic-Fe/Fe3O4-nanoparticle-bound SN38 as carboxylesterase-cleavable prodrug for the delivery to tumors within monocytes/macrophages
Beilstein J. Nanotechnol. 2012, 3, 444–455, doi:10.3762/bjnano.3.51
- . The image reveals that the nanoparticles are roughly spherical, and a core/shell structure of the nanoparticles is clearly demonstrated. The average Fe(0) core diameter is 12 ± 0.5 nm and the thickness of the Fe3O4 shell is around 1.5 ± 0.5 nm. Exchange of the oleylamine/HDA ligands with the dopamine
Surface functionalization of aluminosilicate nanotubes with organic molecules
Beilstein J. Nanotechnol. 2012, 3, 82–100, doi:10.3762/bjnano.3.10
- through their Al–OH groups, and bundles of imogolite tubes still exist even in weak acidic water. When dodecylphosphate attaches to the surface of these bundles, a one-dimensional core–shell structure forms with imogolite bundles as the core. However, it is expected that only tightly packed bundles can be
- observed, indicating excellent dispersibility of PMMA grafted imogolite. The high-resolution phase image and the corresponding cross-sectional analysis in Figure 13b indicates that PMMA grafted imogolite renders a hard middle part and a soft edge. This further confirms the core–shell structure of PMMA-g
Highly efficient ZnO/Au Schottky barrier dye-sensitized solar cells: Role of gold nanoparticles on the charge-transfer process
Beilstein J. Nanotechnol. 2011, 2, 681–690, doi:10.3762/bjnano.2.73
- electrolyte-exposed part of the metal oxide film by means of different additives in the electrolyte [10][11][12][13] or by using the core-shell structure of various metal oxides [14][15][16][17][18] have been reported. In this work we discuss the use of Au nanoparticles in a DSSC based on ZnO nanorods to
Ceria/silicon carbide core–shell materials prepared by miniemulsion technique
Beilstein J. Nanotechnol. 2011, 2, 638–644, doi:10.3762/bjnano.2.67
- confirms the presence of cerium (1.5 wt % Ce). Furthermore the catalytic tests, shown in the next chapter, prove the presence of ceria. The core–shell structure could be seen more clearly when CeO2/Si(O)C particles that were synthesized by an impregnation approach were considered. From the scanning
- electron micrographs an average shell thickness of approximately 60 nm was obtained. Figure 4C illustrates the formation of these ceria shells on silicon carbide spheres. The cerium loading of these materials was increased up to 4 wt % Ce. Element mapping with EDX was used in order to verify the core–shell
- structure. To achieve this, a sphere with a partially fractured shell (Figure 5A) was analyzed with regard to the distribution of cerium, oxygen and silicon. Figure 5C proves that cerium is only present in the shell of this hybrid material. The shell also contains a higher amount of oxygen than the core
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