Cation exchange reactions in ionic nanocrystals. Academic Article

abstract

• Cation exchange has been investigated in a wide range of nanocrystals of varying composition, size, and shape. Complete and fully reversible exchange occurs, and the rates of the reactions are much faster than in bulk cation exchange processes. A critical size has been identified below which the shapes of complex nanocrystals evolve toward the equilibrium shape with lowest energy during the exchange reaction. Above the critical size, the anion sublattice remains intact and the basic shapes of the initial nanocrystals are retained throughout the cation exchange. The size-dependent shape change can also be used to infer features of the microscopic mechanism.

authors

• Son, Dong

published proceedings

• Science

altmetric score

• 6.5

author list (cited authors)

• Son, D. H., Hughes, S. M., Yin, Y., & Paul Alivisatos, A.

citation count

• 1015

complete list of authors

• Son, Dong Hee||Hughes, Steven M||Yin, Yadong||Paul Alivisatos, A

publication date

• November 2004

publisher

• American Association for the Advancement of Science (AAAS)  Publisher

published in

• Science  Journal

keywords

• 0306 Physical Chemistry (incl. Structural)

PubMed Central ID

• 15528440

Digital Object Identifier (DOI)

• 10.1126/science.1103755

start page

• 1009

end page

• 1012

volume

• 306

issue

• 5698

URL

• http%3A%2F%2Fdx.doi.org%2F10.1126%2Fscience.1103755