Evolution of Calcite Nanocrystals through Oriented Attachment and Fragmentation: Multistep Pathway Involving Bottom-Up and Break-Down Stages

Mihiro Takasaki, Yuki Kezuka, Masahiko Tajika, Yuya Oaki, Hiroaki Imai

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A nonclassical multistep pathway involving bottom-up and break-down stages for the evolution of calcite nanograins ∼50 nm in size was demonstrated in a basic aqueous system. Calcite nanofibrils ∼10 nm wide were produced as the initial crystalline phase via amorphous calcium carbonate through ion-by-ion assembly by the carbonation of Ca(OH) 2 at a high pH of ∼13. Bundles ∼50 nm in diameter were then formed by the subsequent oriented attachment of the nanofibrils. Monodispersed calcite nanograins were finally obtained through spontaneous fragmentation of the fibrous forms via a decrease in pH by further carbonation.

Original languageEnglish
Pages (from-to)8997-9001
Number of pages5
JournalACS Omega
Volume2
Issue number12
DOIs
Publication statusPublished - 2017 Jan 1

Fingerprint

Calcium Carbonate
Calcite
Nanocrystals
Carbonation
Ions
Calcium carbonate
Crystalline materials

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Evolution of Calcite Nanocrystals through Oriented Attachment and Fragmentation : Multistep Pathway Involving Bottom-Up and Break-Down Stages. / Takasaki, Mihiro; Kezuka, Yuki; Tajika, Masahiko; Oaki, Yuya; Imai, Hiroaki.

In: ACS Omega, Vol. 2, No. 12, 01.01.2017, p. 8997-9001.

Research output: Contribution to journalArticle

@article{cc93998df25348bd84c5d66dc77c9c14,
title = "Evolution of Calcite Nanocrystals through Oriented Attachment and Fragmentation: Multistep Pathway Involving Bottom-Up and Break-Down Stages",
abstract = "A nonclassical multistep pathway involving bottom-up and break-down stages for the evolution of calcite nanograins ∼50 nm in size was demonstrated in a basic aqueous system. Calcite nanofibrils ∼10 nm wide were produced as the initial crystalline phase via amorphous calcium carbonate through ion-by-ion assembly by the carbonation of Ca(OH) 2 at a high pH of ∼13. Bundles ∼50 nm in diameter were then formed by the subsequent oriented attachment of the nanofibrils. Monodispersed calcite nanograins were finally obtained through spontaneous fragmentation of the fibrous forms via a decrease in pH by further carbonation.",
author = "Mihiro Takasaki and Yuki Kezuka and Masahiko Tajika and Yuya Oaki and Hiroaki Imai",
year = "2017",
month = "1",
day = "1",
doi = "10.1021/acsomega.7b01487",
language = "English",
volume = "2",
pages = "8997--9001",
journal = "ACS Omega",
issn = "2470-1343",
publisher = "American Chemical Society",
number = "12",

}

TY - JOUR

T1 - Evolution of Calcite Nanocrystals through Oriented Attachment and Fragmentation

T2 - Multistep Pathway Involving Bottom-Up and Break-Down Stages

AU - Takasaki, Mihiro

AU - Kezuka, Yuki

AU - Tajika, Masahiko

AU - Oaki, Yuya

AU - Imai, Hiroaki

PY - 2017/1/1

Y1 - 2017/1/1

N2 - A nonclassical multistep pathway involving bottom-up and break-down stages for the evolution of calcite nanograins ∼50 nm in size was demonstrated in a basic aqueous system. Calcite nanofibrils ∼10 nm wide were produced as the initial crystalline phase via amorphous calcium carbonate through ion-by-ion assembly by the carbonation of Ca(OH) 2 at a high pH of ∼13. Bundles ∼50 nm in diameter were then formed by the subsequent oriented attachment of the nanofibrils. Monodispersed calcite nanograins were finally obtained through spontaneous fragmentation of the fibrous forms via a decrease in pH by further carbonation.

AB - A nonclassical multistep pathway involving bottom-up and break-down stages for the evolution of calcite nanograins ∼50 nm in size was demonstrated in a basic aqueous system. Calcite nanofibrils ∼10 nm wide were produced as the initial crystalline phase via amorphous calcium carbonate through ion-by-ion assembly by the carbonation of Ca(OH) 2 at a high pH of ∼13. Bundles ∼50 nm in diameter were then formed by the subsequent oriented attachment of the nanofibrils. Monodispersed calcite nanograins were finally obtained through spontaneous fragmentation of the fibrous forms via a decrease in pH by further carbonation.

UR - http://www.scopus.com/inward/record.url?scp=85048734321&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85048734321&partnerID=8YFLogxK

U2 - 10.1021/acsomega.7b01487

DO - 10.1021/acsomega.7b01487

M3 - Article

AN - SCOPUS:85048734321

VL - 2

SP - 8997

EP - 9001

JO - ACS Omega

JF - ACS Omega

SN - 2470-1343

IS - 12

ER -