Carving at the nanoscale: sequential galvanic exchange and Kirkendall growth at room temperature

González E, Arbiol J, Puntes VF.

Science. 2011 Dec 9;334(6061):1377-80

https://www.ncbi.nlm.nih.gov/pubmed/?term=Carving+at+the+nanoscale%3A+sequential+galvanic+exchange+and+Kirkendall+growth+at+room+temperature

 

Abstract

Shape control of inorganic nanocrystals is important for understanding basic size- and shape-dependent scaling laws and is useful in a wide range of applications. With minor modifications in the chemical environment, it is possible to control the reaction and diffusion processes at room temperature, opening up a synthetic route for the production of polymetallic hollow nanoparticles with very different morphology and composition, obtained by the simultaneous or sequential action of galvanic replacement and the Kirkendall effect.