Nano Archive

Size-Dependent Chemistry: Properties of Nanocrystals

Rao, C. N. R. and Kulkarni, G. U. and Thomas, P. John and Edwards, Peter P. (2001) Size-Dependent Chemistry: Properties of Nanocrystals. CHEMISTRY A EUROPEAN JOURNAL, 8 (1). pp. 28-35.

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Abstract

Properties of materials determined by their size are indeed fascinating and form the basis of the emerging area of nanoscience. In this article, we examine the size dependent electronic structure and properties of nanocrystals of semiconductors and metals to illustrate this aspect. We then discuss the chemical reactivity of metal nanocrystals which is strongly dependent on the size not only because of the large surface area but also a result of the significantly different electronic structure of the small nanocrystals. Nanoscale catalysis of gold exemplifies this feature. Size also plays a role in the assembly of nanocrystals into crystalline arrays. While we owe the beginnings of size-dependent chemistry to the early studies of colloids, recent findings have added a new dimension to the subject.

Item Type:Article
Subjects:Material Science > Nanochemistry
Divisions:Faculty of Engineering, Science and Mathematics > School of Physics
Faculty of Engineering, Science and Mathematics > School of Chemistry
ID Code:3893
Deposited By:JNCASR
Deposited On:27 Jan 2009 04:32
Last Modified:27 Jan 2009 04:32

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