A Chemical Template for Synthesis of Molecular Sheets of Calcium Carbonate

Ina Rianasari, Farah Benyettou, Sudhir Kumar Sharma, Thomas Blanton, Serdal Kirmizialtin, Ramesh Jagannathan

Research output: Contribution to journalArticle

Abstract

Inspired by the discovery of graphene and its unique properties, we focused our research to develop a scheme to create nacre like lamellar structures of molecular sheets of CaCO3 interleaved with an organic material, namely carbon. We developed a facile, chemical template technique, using a formulation of poly(acrylic) acid (PAA) and calcium acetate to create lamellar stacks of single crystal sheets of CaCO3, with a nominal thickness of 17 Å, the same as a unit-cell dimension for calcite (c-axis = 17.062 Å), interleaved with amorphous carbon with a nominal thickness of 8 Å. The strong binding affinity between carboxylate anions and calcium cations in the formulation was used as a molecular template to guide CaCO3 crystallization. Computational modeling of the FTIR spectra showed good agreement with experimental data and confirmed that calcium ions are bridged between polymer chains, resulting in a net-like polymer structure. The process readily lends itself to explore the feasibility of creating molecular sheets of other important inorganic materials and potentially find applications in many fields such as super capacitors and "low k di-electric" systems.

Original languageEnglish (US)
Article number25393
JournalScientific Reports
Volume6
DOIs
StatePublished - May 5 2016

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calcium acetate
Calcium Carbonate
carbopol 940
Nacre
Polymers
Calcium
Lamellar structures
Graphite
Amorphous carbon
Crystallization
Anions
Cations
Capacitors
Carbon
Single crystals
Ions

ASJC Scopus subject areas

  • General

Cite this

A Chemical Template for Synthesis of Molecular Sheets of Calcium Carbonate. / Rianasari, Ina; Benyettou, Farah; Sharma, Sudhir Kumar; Blanton, Thomas; Kirmizialtin, Serdal; Jagannathan, Ramesh.

In: Scientific Reports, Vol. 6, 25393, 05.05.2016.

Research output: Contribution to journalArticle

Rianasari, Ina ; Benyettou, Farah ; Sharma, Sudhir Kumar ; Blanton, Thomas ; Kirmizialtin, Serdal ; Jagannathan, Ramesh. / A Chemical Template for Synthesis of Molecular Sheets of Calcium Carbonate. In: Scientific Reports. 2016 ; Vol. 6.
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