Ligand effect on the growth and the digestion of Co nanocrystals.
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.
Samia
Anna C S
AC
Chemistry Division, Materials Science Division, and Center for Nanoscale Materials, Argonne National Laboratory, Argonne, Illinois 60439, USA.
Hyzer
Kylee
K
Schlueter
John A
JA
Qin
Chang-Jin
CJ
Jiang
J Samuel
JS
Bader
Samuel D
SD
Lin
Xiao-Min
XM