Characteristically shaped ZnO particles produced by periodic precipitation in organic gel media

Tetsuo Kawano, Hiroaki Imai

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)490-499
Number of pages10
JournalJournal of Crystal Growth
Volume283
Issue number3-4
DOIs
Publication statusPublished - 2005 Oct 1

Fingerprint

Particles (particulate matter)
Gels
gels
Stars
Zinc Sulfate
Crystallites
stars
Agar
thin plates
Dissolution
Zinc
wurtzite
crystallites
sulfates
dissolving
zinc
Ions
hydroxide ion
ions
Sulfates

Keywords

  • A1. Crystal growth
  • A1. Liesegang bands
  • A1. Periodic precipitation
  • B1. Agar gel
  • B1. Zinc oxide

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Characteristically shaped ZnO particles produced by periodic precipitation in organic gel media. / Kawano, Tetsuo; Imai, Hiroaki.

In: Journal of Crystal Growth, Vol. 283, No. 3-4, 01.10.2005, p. 490-499.

Research output: Contribution to journalArticle

@article{e4dfe51beb6b4d52a3bbb6c56b95240a,
title = "Characteristically shaped ZnO particles produced by periodic precipitation in organic gel media",
abstract = "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.",
keywords = "A1. Crystal growth, A1. Liesegang bands, A1. Periodic precipitation, B1. Agar gel, B1. Zinc oxide",
author = "Tetsuo Kawano and Hiroaki Imai",
year = "2005",
month = "10",
day = "1",
doi = "10.1016/j.jcrysgro.2005.06.005",
language = "English",
volume = "283",
pages = "490--499",
journal = "Journal of Crystal Growth",
issn = "0022-0248",
publisher = "Elsevier",
number = "3-4",

}

TY - JOUR

T1 - Characteristically shaped ZnO particles produced by periodic precipitation in organic gel media

AU - Kawano, Tetsuo

AU - Imai, Hiroaki

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

UR - http://www.scopus.com/inward/record.url?scp=24644504747&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=24644504747&partnerID=8YFLogxK

U2 - 10.1016/j.jcrysgro.2005.06.005

DO - 10.1016/j.jcrysgro.2005.06.005

M3 - Article

AN - SCOPUS:24644504747

VL - 283

SP - 490

EP - 499

JO - Journal of Crystal Growth

JF - Journal of Crystal Growth

SN - 0022-0248

IS - 3-4

ER -