Core-shell nanopartiele

Experimentally, it is possible to produce core-shell nanopartieles where one semiconductor is covered by another one. Similarly, also eore-shell nanowires have been produced experimentally. If the two semieonductors... 

CHAPTER 15. Carbon-Supported Core-Shell PtSn Nanopartieles ... 

In this chapter, we review recent work on two special types of polymerie earrier systems, namely, the spherical polyelectrolyte bmshes (SPBs) and thermosensitive core-shell microgels, which have been used successfully for the immobilization of metal nanopartieles. Figure 1.1a gives a schematic representation of the SPB particles Long linear polyelectrolyte chains are grafted densely to a colloidal core particle. The term brush implies that the grafting of the chains is sufficiently... 

Fig. 6 Hollow Si-C core-shell nanostructure, a Schematic of the principle Si can expand upon alloying with Li without breaking the carbon shell, that keeps its original dimension, b Schematic fabrication process, starting with Si nanopartieles. c-f Transmission electron microscope images of a pristine Si nanopartiele (c) a Si nanopartiele covered by a thin layer of Si02 (d) an oxidized nanopaiticle (Si/Si02> coated with a thin carbon laytr (e) some hollowed core-shell structures obtained after the removal of the Si02 layer (f). Repinted with permission ftom Ref. [53]...

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