Silicon core composition

Engstrom E, Rodushkin I, Baxter DC, Ohlander B (2006) Chromatographic purification for the determination of dissolved silicon isotopic compositions in natural waters by high-resolution multicollector inductively coupled mass spectrometry. Anal Chem 78 250-257 Epica community members (2004) Eight glacial cycles from an Antarctic ice core. Nature 429 623-628... 

A model core composition has been constructed using silicon as the other light element in the outer core, which is also consistent with evidence for... 

A similar result was obtained by Liu et al. In this case, inclusion of a high-energy mechanical milling (HEMM) step between the two thermal pyrolysis reactions of PVDF resulted in a sihcon/disordered carbon composite, in which the active silicon cores were homogeneonsly distributed within the pyrolyzed carbonaceous matrix. The composite offered a reversible capacity of ca. 900 mA h g within 40 cycles and a relatively high conlombic efficiency of 80% over the initial cycle. 

The main approaches used to date for investigating silicon-based anodes were summarized that is, the composite approach and thin-film approach. The composite approach relies on the use of silicon in the form of tiny silicon cores, uniformly... 

The benefit of the LbL technique is that the properties of the assemblies, such as thickness, composition, and function, can be tuned by varying the layer number, the species deposited, and the assembly conditions. Further, this technique can be readily transferred from planar substrates (e.g., silicon and quartz slides) [53,54] to three-dimensional substrates with various morphologies and structures, such as colloids [55] and biological cells [56]. Application of the LbL technique to colloids provides a simple and effective method to prepare core-shell particles, and hollow capsules, after removal of the sacrificial core template particles. The properties of the capsules prepared by the LbL procedure, such as diameter, shell thickness and permeability, can be readily adjusted through selection of the core size, the layer number, and the nature of the species deposited [57]. Such capsules are ideal candidates for applications in the areas of drug delivery, sensing, and catalysis [48-51,57]. 

---