Journal article
Phase Diagram and Transformations of Iron Pentacarbonyl to nm Layered Hematite and Carbon-Oxygen Polymer under Pressure
Scientific reports, Vol.5(1), pp.15139-15139
10/12/2015
Handle:
https://hdl.handle.net/2376/110817
PMCID: PMC4601022
PMID: 26456761
Abstract
We present the phase diagram of Fe(CO)5, consisting of three molecular polymorphs (phase I, II and III) and an extended polymeric phase that can be recovered at ambient condition. The phase diagram indicates a limited stability of Fe(CO)5 within a pressure-temperature dome formed below the liquid- phase II- polymer triple point at 4.2 GPa and 580 K. The limited stability, in turn, signifies the temperature-induced weakening of Fe-CO back bonds, which eventually leads to the dissociation of Fe-CO at the onset of the polymerization of CO. The recovered polymer is a composite of novel nm-lamellar layers of crystalline hematite Fe2O3 and amorphous carbon-oxygen polymers. These results, therefore, demonstrate the synthesis of carbon-oxygen polymer by compressing Fe(CO)5, which advocates a novel synthetic route to develop atomistic composite materials by compressing organometallic compounds.
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Details
- Title
- Phase Diagram and Transformations of Iron Pentacarbonyl to nm Layered Hematite and Carbon-Oxygen Polymer under Pressure
- Creators
- Young Jay Ryu - Materials Science and Engineering, Department of Chemistry and Institute for Shock Physics, Washington State University, Pullman, Washington 99164Minseob Kim - Materials Science and Engineering, Department of Chemistry and Institute for Shock Physics, Washington State University, Pullman, Washington 99164Choong-Shik Yoo - Materials Science and Engineering, Department of Chemistry and Institute for Shock Physics, Washington State University, Pullman, Washington 99164
- Publication Details
- Scientific reports, Vol.5(1), pp.15139-15139
- Academic Unit
- Institute for Shock Physics
- Publisher
- England
- Identifiers
- 99900547292601842
- Language
- English
- Resource Type
- Journal article