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 language | English |
|---|---|
| Pages (from-to) | 8997-9001 |
| Number of pages | 5 |
| Journal | ACS Omega |
| Volume | 2 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 2017 Jan 1 |
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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 journal › Article
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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 -