TY - JOUR
T1 - Characteristically shaped ZnO particles produced by periodic precipitation in organic gel media
AU - Kawano, Tetsuo
AU - Imai, Hiroaki
N1 - Funding Information:
This work was supported by Grant-in-Aid for Scientific Research (No. 15560587) and the 21st Century COE program “KEIO Life Conjugate Chemistry” from the Ministry of Education, Culture, Sports, Science, and Technology, Japan.
PY - 2005/10/1
Y1 - 2005/10/1
N2 - Wurtzite-type ZnO particles were directly prepared in agar gel containing zinc sulfate by diffusion of hydroxyl ions (OH-). A banded structure consisting of characteristically shaped particles, such as star-like, ellipsoidal, and round grains, was obtained through periodic precipitation along the direction of the OH- diffusion. The individual particles were composed of nanoscale ZnO crystallites elongated in the c-axis. The star-like and ellipsoidal ZnO aggregates were produced through a dissolution-precipitation process from previously precipitated thin plates of ZnSO4· 3Zn(OH)2. The gel media provided a diffusion field of the precursors resulting in the formation of various kinds of characteristic shapes consisting of nanoscale ZnO particles.
AB - Wurtzite-type ZnO particles were directly prepared in agar gel containing zinc sulfate by diffusion of hydroxyl ions (OH-). A banded structure consisting of characteristically shaped particles, such as star-like, ellipsoidal, and round grains, was obtained through periodic precipitation along the direction of the OH- diffusion. The individual particles were composed of nanoscale ZnO crystallites elongated in the c-axis. The star-like and ellipsoidal ZnO aggregates were produced through a dissolution-precipitation process from previously precipitated thin plates of ZnSO4· 3Zn(OH)2. The gel media provided a diffusion field of the precursors resulting in the formation of various kinds of characteristic shapes consisting of nanoscale ZnO particles.
KW - A1. Crystal growth
KW - A1. Liesegang bands
KW - A1. Periodic precipitation
KW - B1. Agar gel
KW - B1. Zinc oxide
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U2 - 10.1016/j.jcrysgro.2005.06.005
DO - 10.1016/j.jcrysgro.2005.06.005
M3 - Article
AN - SCOPUS:24644504747
SN - 0022-0248
VL - 283
SP - 490
EP - 499
JO - Journal of Crystal Growth
JF - Journal of Crystal Growth
IS - 3-4
ER -