Ligand effect on the growth and the digestion of Co nanocrystals.

作者信息

Samia Anna C S, Hyzer Kylee, Schlueter John A, Qin Chang-Jin, Jiang J Samuel, Bader Samuel D, Lin Xiao-Min

机构信息

Chemistry Division, Materials Science Division, and Center for Nanoscale Materials, Argonne National Laboratory, Argonne, Illinois 60439, USA.

出版信息

J Am Chem Soc. 2005 Mar 30;127(12):4126-7. doi: 10.1021/ja044419r.

DOI:10.1021/ja044419r

PMID:15783167

Abstract

The reaction product of cobalt carbonyl decomposition depends on the concentration of the oleic acid ligand. With a low concentration of ligand, nanocrystals nucleate and grow to large ferromagnetic particles through the process of Ostwald ripening and coalescence coarsening. With a high concentration of ligand, stable cluster complexes are formed. Addition or removal of ligand from the reaction products can interchange the formation of cluster complexes and nanocrystals.

摘要