Nanocrystalline coatings

J. Klabunde, Carbon Dispersion and Morphology in Carbon-Coated Nanocrystalline MgO, Langmuir 19(24), 10426-10433 (2003). 

Of special interest are composite materials consisting of carbon-coated nanocrystalline oxides. Such permeable carbon coating not only provides high stability of the destructive sorbents under atmospheric conditions, but in some cases shown in this publication considerably increases their reactivity. Elucidation of the mechanism of this interesting phenomenon will require further research. 

Raw nanomaterials Nanoparticle coatings Nanocrystalline materials Nanostructured materials Cyclic peptides Dendrimers Detoxification agents Fullerenes... 

Tennakone K., Bandara J., Bandaranayake P. K. M., Kumara G. R. A. and Konno A. (2001), Enhanced efficiency of a dye-sensitised solar cell made from MgO-coated nanocrystalline Sn02 , Jap. J. Appl. Phys. 40, L732-L734. 

Biomolecular Delivery Using Coated Nanocrystalline Ceramics (Aquasomes)... 

Cao,Y. L., Yu, L. H., Li,T, Ai,X. P. Yang, H.X. Synthesis and electrochemical characterization of carbon-coated nanocrystalline LiFeP04 prepared by polyaciylates-pyrolysis route./. Power Sources, 172,913 (2007]. 

Palladium and gold Palladium electrodeposition is of special interest for catalysis and for nanotechnology. It has been reported [49] that it can be deposited from basic chloroaluminate liquids, while in the acidic regime the low solubility of PdCl2 and passivation phenomena complicate the deposition. In our experience, however, thick Pd layers are difficult to obtain from basic chloroaluminates. With different melt compositions and special electrochemical techniques at temperatures up to 100 °C we succeeded in depositing mirror-bright and thick nanocrystalline palladium coatings [10]. 

Veprek, S., Nesladek, P., Niederhofer, A., Glatz, F., Jilek, M., and Sima, M., "Recent Progress in the Superhard Nanocrystalline Composites Towards Their Industrialization and Understanding of the Origin of the Superhardness, Surf. Coat. Technol,Vo. 108/109,1998,pp. 138-147. 

Thin film coatings of nanocrystalline semiconductors, as collections of quantum dots (QD or Q-dot) attached to a solid surface, resemble in many ways semiconductor colloids dispersed in a liquid or solid phase and can be considered as a subsection of the latter category. The first 3D quantum size effect, on small Agl and CdS colloids, was observed and correctly explained, back in 1967 [109]. However, systematic studies in this field only began in the 1980s. 

The same skepticism applies to nanocrystalline diamond that is reported to be harder than diamond single crystals (Sumiya and Irifune, 2007). Other cases in which rough surfaces may have skewed the measurements are TiN/SiN coatings (Kauffmann et al., 2005) and (AlMgB14 + TiB2) mixtures (Cook et al., 2000). 

Nanoparticles bearing a so-called three-dimensional self-assembled monolayer (3D-SAM) [136] coating or shell are ideal construction units for programmed, hierarchical self-assembly of larger objects [137]. Several research groups have successfully assembled functionalized nanoparticles into large nanocrystalline arrays... 

The dye sensitised semi-conductor electrode is a transparent conducting sheet of glass coated (5 pm) with nanocrystalline TiOj (diameter 20 nm) doped with a ruthenium bipyridyl complex. The dye absorbs light, becomes excited and injects electrons into the TiOj electrode. The electrons travel into the transparent WO3 hhn and then, to balance the charge, lithium ions from the electrolyte solution insert into the WO3 and in so doing create the coloured species as described above. If the light source is removed then the cell is bleached back to its original colour. However, if the... 

The effect of surface modification of the 2 photoelectrode by other oxide materials has been also investigated by several research groups. For example, Zaban et al. prepared a nanocrystalline 2 photoelectrode coated with a... 

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