Facile synthesis of Fe2O3 nanocrystals without Fe(CO)5 precursor and one-pot synthesis of highly fluorescent Fe 2O3-CdSe nanocomposites

Chung Yen Ang; Louise Giam; Zheng Ming Chan; Alex W.H. Lin; Hongwei Gu; Eamonn Devlin; Georgia C. Papaefthymiou; Subramanian Tamil Selvan; Jackie Y. Ying

doi:10.1002/adma.200801273

Facile synthesis of Fe₂O₃ nanocrystals without Fe(CO)₅ precursor and one-pot synthesis of highly fluorescent Fe ₂O₃-CdSe nanocomposites

Chung Yen Ang, Louise Giam, Zheng Ming Chan, Alex W.H. Lin, Hongwei Gu, Eamonn Devlin, Georgia C. Papaefthymiou, Subramanian Tamil Selvan, Jackie Y. Ying

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

58 Scopus citations

Abstract

A direct one-pot synthesis of Fe₂O₃-CdSe nanocomposites for the development of magnetic bifunctional systems was reported. A gram-scale synthesis of monodispersed γ- Fe₂O ₃ (magnemite) nanoclusters with a less expensive oxidant and without a hazardous iron pentacarbonyl (Fe (CO)₅) or iron acetylacetonate precursor was performed. The magnetic and optical properties of the nanocomposites were studied by varying the molar ratio of CdO to Fe(St) ₂ from 5:1 to 5:2.5. The magnetic measurements were conducted using a Quantum Design MPMS R2 Superconducting Quantum Interference Device (SQUID) and Transmission Electron Microscopy (TEM). The variations in the observed magnetic parameters are consistent with an increase in the effective magnetic anisotropy density of the Fe₂O₃ nanoparticles. This method employs a hazardous Fe (CO) ₅ or iron acetylacetonate precursor and uses less expensive MNO oxidant and can be easily scaled up to 2gm.

Original language	English
Pages (from-to)	869-873
Number of pages	5
Journal	Advanced Materials
Volume	21
Issue number	8
DOIs	https://doi.org/10.1002/adma.200801273
State	Published - 23 Feb 2009
Externally published	Yes

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

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10.1002/adma.200801273

Cite this

@article{454e95baad864fb6850958db534a4577,

title = "Facile synthesis of Fe2O3 nanocrystals without Fe(CO)5 precursor and one-pot synthesis of highly fluorescent Fe 2O3-CdSe nanocomposites",

abstract = "A direct one-pot synthesis of Fe2O3-CdSe nanocomposites for the development of magnetic bifunctional systems was reported. A gram-scale synthesis of monodispersed γ- Fe2O 3 (magnemite) nanoclusters with a less expensive oxidant and without a hazardous iron pentacarbonyl (Fe (CO)5) or iron acetylacetonate precursor was performed. The magnetic and optical properties of the nanocomposites were studied by varying the molar ratio of CdO to Fe(St) 2 from 5:1 to 5:2.5. The magnetic measurements were conducted using a Quantum Design MPMS R2 Superconducting Quantum Interference Device (SQUID) and Transmission Electron Microscopy (TEM). The variations in the observed magnetic parameters are consistent with an increase in the effective magnetic anisotropy density of the Fe2O3 nanoparticles. This method employs a hazardous Fe (CO) 5 or iron acetylacetonate precursor and uses less expensive MNO oxidant and can be easily scaled up to 2gm.",

author = "Ang, \{Chung Yen\} and Louise Giam and Chan, \{Zheng Ming\} and Lin, \{Alex W.H.\} and Hongwei Gu and Eamonn Devlin and Papaefthymiou, \{Georgia C.\} and Selvan, \{Subramanian Tamil\} and Ying, \{Jackie Y.\}",

year = "2009",

month = feb,

day = "23",

doi = "10.1002/adma.200801273",

language = "English",

volume = "21",

pages = "869--873",

journal = "Advanced Materials",

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T1 - Facile synthesis of Fe2O3 nanocrystals without Fe(CO)5 precursor and one-pot synthesis of highly fluorescent Fe 2O3-CdSe nanocomposites

AU - Ang, Chung Yen

AU - Giam, Louise

AU - Chan, Zheng Ming

AU - Lin, Alex W.H.

AU - Gu, Hongwei

AU - Devlin, Eamonn

AU - Papaefthymiou, Georgia C.

AU - Selvan, Subramanian Tamil

AU - Ying, Jackie Y.

PY - 2009/2/23

Y1 - 2009/2/23

N2 - A direct one-pot synthesis of Fe2O3-CdSe nanocomposites for the development of magnetic bifunctional systems was reported. A gram-scale synthesis of monodispersed γ- Fe2O 3 (magnemite) nanoclusters with a less expensive oxidant and without a hazardous iron pentacarbonyl (Fe (CO)5) or iron acetylacetonate precursor was performed. The magnetic and optical properties of the nanocomposites were studied by varying the molar ratio of CdO to Fe(St) 2 from 5:1 to 5:2.5. The magnetic measurements were conducted using a Quantum Design MPMS R2 Superconducting Quantum Interference Device (SQUID) and Transmission Electron Microscopy (TEM). The variations in the observed magnetic parameters are consistent with an increase in the effective magnetic anisotropy density of the Fe2O3 nanoparticles. This method employs a hazardous Fe (CO) 5 or iron acetylacetonate precursor and uses less expensive MNO oxidant and can be easily scaled up to 2gm.

AB - A direct one-pot synthesis of Fe2O3-CdSe nanocomposites for the development of magnetic bifunctional systems was reported. A gram-scale synthesis of monodispersed γ- Fe2O 3 (magnemite) nanoclusters with a less expensive oxidant and without a hazardous iron pentacarbonyl (Fe (CO)5) or iron acetylacetonate precursor was performed. The magnetic and optical properties of the nanocomposites were studied by varying the molar ratio of CdO to Fe(St) 2 from 5:1 to 5:2.5. The magnetic measurements were conducted using a Quantum Design MPMS R2 Superconducting Quantum Interference Device (SQUID) and Transmission Electron Microscopy (TEM). The variations in the observed magnetic parameters are consistent with an increase in the effective magnetic anisotropy density of the Fe2O3 nanoparticles. This method employs a hazardous Fe (CO) 5 or iron acetylacetonate precursor and uses less expensive MNO oxidant and can be easily scaled up to 2gm.

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JO - Advanced Materials

JF - Advanced Materials

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