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Title: Pressure-Induced Polyamorphism and Formation of 'Aragonitic' Amorphous Calcium Carbonate

Abstract

Amorphous calcium carbonate (ACC) undergoes a reversible amorphous–amorphous phase transition at 10 GPa, adopting an aragonite-like local order. This result suggests a mechanism by which Mg2+—a cation with smaller ionic radius than Ca2+—modifies the local order of ACC to an aragonite-like order by helping to decrease the molar volume of the amorphous phase.

Authors:
; ; ;  [1]
  1. Macquarie
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Org.:
NSFDOE - BASIC ENERGY SCIENCES
OSTI Identifier:
1092574
Resource Type:
Journal Article
Journal Name:
Angewandte Chemie International Edition (Online)
Additional Journal Information:
Journal Volume: 52; Journal Issue: (32) ; 08, 2013; Journal ID: ISSN 1521-3773
Publisher:
Gesselschaft Deutscher Chemiker
Country of Publication:
United States
Language:
ENGLISH

Citation Formats

Fernandez-Martinez, Alejandro, Kalkan, Bora, Clark, Simon M., Waychunas, Glenn A., UJF), and LBNL). Pressure-Induced Polyamorphism and Formation of 'Aragonitic' Amorphous Calcium Carbonate. United States: N. p., 2013. Web. doi:10.1002/anie.201302974.
Fernandez-Martinez, Alejandro, Kalkan, Bora, Clark, Simon M., Waychunas, Glenn A., UJF), & LBNL). Pressure-Induced Polyamorphism and Formation of 'Aragonitic' Amorphous Calcium Carbonate. United States. https://doi.org/10.1002/anie.201302974
Fernandez-Martinez, Alejandro, Kalkan, Bora, Clark, Simon M., Waychunas, Glenn A., UJF), and LBNL). 2013. "Pressure-Induced Polyamorphism and Formation of 'Aragonitic' Amorphous Calcium Carbonate". United States. https://doi.org/10.1002/anie.201302974.
@article{osti_1092574,
title = {Pressure-Induced Polyamorphism and Formation of 'Aragonitic' Amorphous Calcium Carbonate},
author = {Fernandez-Martinez, Alejandro and Kalkan, Bora and Clark, Simon M. and Waychunas, Glenn A. and UJF) and LBNL)},
abstractNote = {Amorphous calcium carbonate (ACC) undergoes a reversible amorphous–amorphous phase transition at 10 GPa, adopting an aragonite-like local order. This result suggests a mechanism by which Mg2+—a cation with smaller ionic radius than Ca2+—modifies the local order of ACC to an aragonite-like order by helping to decrease the molar volume of the amorphous phase.},
doi = {10.1002/anie.201302974},
url = {https://www.osti.gov/biblio/1092574}, journal = {Angewandte Chemie International Edition (Online)},
issn = {1521-3773},
number = (32) ; 08, 2013,
volume = 52,
place = {United States},
year = {Mon Sep 23 00:00:00 EDT 2013},
month = {Mon Sep 23 00:00:00 EDT 2013}
}