Amorphous iron (II) carbonate: Crystallization energetics and comparison to other carbonate minerals related to CO2 sequestration

Ozlem Sel; A.V. Radha; Knud Dideriksen; Alexandra Navrotsky

doi:10.1016/j.gca.2012.03.011

Amorphous iron (II) carbonate: Crystallization energetics and comparison to other carbonate minerals related to CO₂ sequestration

Ozlem Sel
, A.V. Radha
, Knud Dideriksen
, Alexandra Navrotsky

Research output: Contribution to journal › Article › Research › peer-review

62 Citations (Scopus)

Abstract

The synthesis, characterization and crystallization energetics of amorphous iron (II) carbonate (AFC) are reported. AFC may form as a precursor for siderite (FeCO₃). The enthalpy of crystallization (ΔH_crys) of AFC is similar to that of amorphous magnesium carbonate (AMC) and more exothermic than that of amorphous calcium carbonate (ACC). This suggests that enthalpy of crystallization in carbonate systems is ionic-size controlled, which may have significant implications in a wide variety of conditions, including geological sequestration of anthropogenic carbon dioxide.

Original language	English
Pages (from-to)	61-68
Number of pages	8
Journal	Geochimica et Cosmochimica Acta
Volume	87
DOIs	https://doi.org/10.1016/j.gca.2012.03.011
Publication status	Published - 15 Jun 2012
Externally published	Yes

Programme Area

Programme Area 3: Energy Resources

Access to Document

10.1016/j.gca.2012.03.011

Cite this

@article{563181e9f8c54e00b863be556b3d191b,

title = "Amorphous iron (II) carbonate: Crystallization energetics and comparison to other carbonate minerals related to CO2 sequestration",

abstract = "The synthesis, characterization and crystallization energetics of amorphous iron (II) carbonate (AFC) are reported. AFC may form as a precursor for siderite (FeCO3). The enthalpy of crystallization (ΔHcrys) of AFC is similar to that of amorphous magnesium carbonate (AMC) and more exothermic than that of amorphous calcium carbonate (ACC). This suggests that enthalpy of crystallization in carbonate systems is ionic-size controlled, which may have significant implications in a wide variety of conditions, including geological sequestration of anthropogenic carbon dioxide.",

author = "Ozlem Sel and A.V. Radha and Knud Dideriksen and Alexandra Navrotsky",

note = "Funding Information: This project was supported as part of the “Center of Nanoscale Control of Geologic CO 2 ”, an Energy Frontier Research Center funded by the US Department of Energy, Office of Science, Office of Basic Energy Sciences under Award Number DEAC02-05CH11231. ",

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doi = "10.1016/j.gca.2012.03.011",

language = "English",

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journal = "Geochimica et Cosmochimica Acta",

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TY - JOUR

T1 - Amorphous iron (II) carbonate

T2 - Crystallization energetics and comparison to other carbonate minerals related to CO2 sequestration

AU - Sel, Ozlem

AU - Radha, A.V.

AU - Dideriksen, Knud

AU - Navrotsky, Alexandra

N1 - Funding Information: This project was supported as part of the “Center of Nanoscale Control of Geologic CO 2 ”, an Energy Frontier Research Center funded by the US Department of Energy, Office of Science, Office of Basic Energy Sciences under Award Number DEAC02-05CH11231.

PY - 2012/6/15

Y1 - 2012/6/15

N2 - The synthesis, characterization and crystallization energetics of amorphous iron (II) carbonate (AFC) are reported. AFC may form as a precursor for siderite (FeCO3). The enthalpy of crystallization (ΔHcrys) of AFC is similar to that of amorphous magnesium carbonate (AMC) and more exothermic than that of amorphous calcium carbonate (ACC). This suggests that enthalpy of crystallization in carbonate systems is ionic-size controlled, which may have significant implications in a wide variety of conditions, including geological sequestration of anthropogenic carbon dioxide.

AB - The synthesis, characterization and crystallization energetics of amorphous iron (II) carbonate (AFC) are reported. AFC may form as a precursor for siderite (FeCO3). The enthalpy of crystallization (ΔHcrys) of AFC is similar to that of amorphous magnesium carbonate (AMC) and more exothermic than that of amorphous calcium carbonate (ACC). This suggests that enthalpy of crystallization in carbonate systems is ionic-size controlled, which may have significant implications in a wide variety of conditions, including geological sequestration of anthropogenic carbon dioxide.

UR - https://www.scopus.com/pages/publications/84861183948

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DO - 10.1016/j.gca.2012.03.011

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AN - SCOPUS:84861183948

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JO - Geochimica et Cosmochimica Acta

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