Preparation of large platy particles of Co-Al layered double hydroxides

Mihoko Kayano, Makoto Ogawa

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Cobalt (II) and Al (III) layered double hydroxides were precipitated from homogeneous solutions using urea hydrolysis under hydrothermal conditions. The particle sizes were controlled successfully by changing the reaction temperature and period. It was found that larger particles formed by reactions at lower temperatures over longer reaction periods because the slow urea hydrolysis at lower temperatures suppresses the formation of nuclei in the solution. When the reaction was conducted at 60°C for 100 days, particles >40 μm wide were obtained.

Original languageEnglish
Pages (from-to)382-389
Number of pages8
JournalClays and Clay Minerals
Volume54
Issue number3
DOIs
Publication statusPublished - 2006 Jun

Fingerprint

Hydroxides
hydroxides
urea
hydroxide
hydrolysis
Urea
Hydrolysis
cobalt
temperature
particle size
Cobalt
Temperature
Particle size
particle

Keywords

  • Hydrothermal synthesis
  • Layered-double hydroxides
  • Particle-size distribution
  • Urea hydrolysis

ASJC Scopus subject areas

  • Soil Science
  • Earth and Planetary Sciences (miscellaneous)
  • Geochemistry and Petrology
  • Water Science and Technology

Cite this

Preparation of large platy particles of Co-Al layered double hydroxides. / Kayano, Mihoko; Ogawa, Makoto.

In: Clays and Clay Minerals, Vol. 54, No. 3, 06.2006, p. 382-389.

Research output: Contribution to journalArticle

Kayano, Mihoko ; Ogawa, Makoto. / Preparation of large platy particles of Co-Al layered double hydroxides. In: Clays and Clay Minerals. 2006 ; Vol. 54, No. 3. pp. 382-389.
@article{1f47c159a54d4d10937f747a702169fd,
title = "Preparation of large platy particles of Co-Al layered double hydroxides",
abstract = "Cobalt (II) and Al (III) layered double hydroxides were precipitated from homogeneous solutions using urea hydrolysis under hydrothermal conditions. The particle sizes were controlled successfully by changing the reaction temperature and period. It was found that larger particles formed by reactions at lower temperatures over longer reaction periods because the slow urea hydrolysis at lower temperatures suppresses the formation of nuclei in the solution. When the reaction was conducted at 60°C for 100 days, particles >40 μm wide were obtained.",
keywords = "Hydrothermal synthesis, Layered-double hydroxides, Particle-size distribution, Urea hydrolysis",
author = "Mihoko Kayano and Makoto Ogawa",
year = "2006",
month = "6",
doi = "10.1346/CCMN.2006.0540309",
language = "English",
volume = "54",
pages = "382--389",
journal = "Clays and Clay Minerals",
issn = "0009-8604",
publisher = "Clay Minerals Society",
number = "3",

}

TY - JOUR

T1 - Preparation of large platy particles of Co-Al layered double hydroxides

AU - Kayano, Mihoko

AU - Ogawa, Makoto

PY - 2006/6

Y1 - 2006/6

N2 - Cobalt (II) and Al (III) layered double hydroxides were precipitated from homogeneous solutions using urea hydrolysis under hydrothermal conditions. The particle sizes were controlled successfully by changing the reaction temperature and period. It was found that larger particles formed by reactions at lower temperatures over longer reaction periods because the slow urea hydrolysis at lower temperatures suppresses the formation of nuclei in the solution. When the reaction was conducted at 60°C for 100 days, particles >40 μm wide were obtained.

AB - Cobalt (II) and Al (III) layered double hydroxides were precipitated from homogeneous solutions using urea hydrolysis under hydrothermal conditions. The particle sizes were controlled successfully by changing the reaction temperature and period. It was found that larger particles formed by reactions at lower temperatures over longer reaction periods because the slow urea hydrolysis at lower temperatures suppresses the formation of nuclei in the solution. When the reaction was conducted at 60°C for 100 days, particles >40 μm wide were obtained.

KW - Hydrothermal synthesis

KW - Layered-double hydroxides

KW - Particle-size distribution

KW - Urea hydrolysis

UR - http://www.scopus.com/inward/record.url?scp=33746794613&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33746794613&partnerID=8YFLogxK

U2 - 10.1346/CCMN.2006.0540309

DO - 10.1346/CCMN.2006.0540309

M3 - Article

AN - SCOPUS:33746794613

VL - 54

SP - 382

EP - 389

JO - Clays and Clay Minerals

JF - Clays and Clay Minerals

SN - 0009-8604

IS - 3

ER -