Thermodynamic Properties of α-Fe2O3 and Fe3O4 Nanoparticles

Spencer, Elinor C.; Ross, Nancy L.; Olsen, Rebecca E.; Huang, Baiyu; Kolesnikov, Alexander I.; Woodfield, Brian F.

doi:10.1021/acs.jpcc.5b01481

Title: Thermodynamic Properties of α-Fe₂O₃ and Fe₃O₄ Nanoparticles

Abstract

Here we comprehansively assessed the thermodynamic properties of hydrated α-Fe₂O₃ (hematite) and Fe₃O₄ (magnetite) nanoparticles. In addition to 9 nm Fe₃O₄, three α-e₂O₃nanoparticles samples of different sizes (11, 14, and 25 nm) and bulk α-e₂O₃ have been evaluated by inelastic neutron scattering methods. The contribution of the two-level magnetic spin flip transition to the heat capacity of the α-e₂O₃ particles has been determined. The isochoric heat capacity of the water confined on the surface of these two types of iron oxide particles have been calculated from their INS spectra, and is affected by the chemical composition of the underlying particle. Furthermore, the heat capacity and dynamics of the particle hydration layers appear to be influenced by a complex array of factors including particle size, water coverage, and possibly the magnetic state of the particle itself.

Authors:

Spencer, Elinor C. ^[1]; Ross, Nancy L. ^[1]; Olsen, Rebecca E. ^[2]; Huang, Baiyu ^[2]; Kolesnikov, Alexander I. ^[3]; Woodfield, Brian F. ^[2]

Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States). Dept. of Geosciences
Brigham Young Univ., Provo, UT (United States). Dept. of Chemistry and Biochemistry
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Chemical and Engineering Materials Division

Publication Date:: Tue Apr 21 00:00:00 EDT 2015

Research Org.:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Spallation Neutron Source (SNS)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:: 1265482

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: Journal of Physical Chemistry. C

Additional Journal Information:: Journal Volume: 119; Journal Issue: 17; Journal ID: ISSN 1932-7447

Publisher:: American Chemical Society

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE

Citation Formats


                    Spencer, Elinor C., Ross, Nancy L., Olsen, Rebecca E., Huang, Baiyu, Kolesnikov, Alexander I., and Woodfield, Brian F. Thermodynamic Properties of α-Fe2O3 and Fe3O4 Nanoparticles.  United States: N. p., 2015. 
Web.  doi:10.1021/acs.jpcc.5b01481.

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                    Spencer, Elinor C., Ross, Nancy L., Olsen, Rebecca E., Huang, Baiyu, Kolesnikov, Alexander I., & Woodfield, Brian F. Thermodynamic Properties of α-Fe2O3 and Fe3O4 Nanoparticles.  United States.  https://doi.org/10.1021/acs.jpcc.5b01481

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                    Spencer, Elinor C., Ross, Nancy L., Olsen, Rebecca E., Huang, Baiyu, Kolesnikov, Alexander I., and Woodfield, Brian F. Tue .  
"Thermodynamic Properties of α-Fe2O3 and Fe3O4 Nanoparticles".  United States.  https://doi.org/10.1021/acs.jpcc.5b01481.  https://www.osti.gov/servlets/purl/1265482.

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@article{osti_1265482,

  title        = {Thermodynamic Properties of α-Fe2O3 and Fe3O4 Nanoparticles},

  author       = {Spencer, Elinor C. and Ross, Nancy L. and Olsen, Rebecca E. and Huang, Baiyu and Kolesnikov, Alexander I. and Woodfield, Brian F.},

  abstractNote = {Here we comprehansively assessed the thermodynamic properties of hydrated α-Fe2O3 (hematite) and Fe3O4 (magnetite) nanoparticles. In addition to 9 nm Fe3O4, three α-e2O3nanoparticles samples of different sizes (11, 14, and 25 nm) and bulk α-e2O3 have been evaluated by inelastic neutron scattering methods. The contribution of the two-level magnetic spin flip transition to the heat capacity of the α-e2O3 particles has been determined. The isochoric heat capacity of the water confined on the surface of these two types of iron oxide particles have been calculated from their INS spectra, and is affected by the chemical composition of the underlying particle. Furthermore, the heat capacity and dynamics of the particle hydration layers appear to be influenced by a complex array of factors including particle size, water coverage, and possibly the magnetic state of the particle itself.},

  doi          = {10.1021/acs.jpcc.5b01481},

  journal      = {Journal of Physical Chemistry. C},

  number       = 17,

  volume       = 119,

  place        = {United States},

  year         = {Tue Apr 21 00:00:00 EDT 2015},

  month        = {Tue Apr 21 00:00:00 EDT 2015}

}

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Works referencing / citing this record:

The Influence of Synthesis Parameters on Structural and Magnetic Properties of Iron Oxide Nanomaterials
journal, January 2020

Cursaru, Laura Madalina; Piticescu, Roxana Mioara; Dragut, Dumitru Valentin
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The Influence of Synthesis Parameters on Structural and Magnetic Properties of Iron Oxide Nanomaterials
posted_content, December 2019

Cursaru, Laura-Madalina; Piticescu, Roxana Mioara; Dragut, Dumitru Valentin
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Title: Thermodynamic Properties of α-Fe2O3 and Fe3O4 Nanoparticles

Abstract

Citation Formats

Nanoparticulate Iron Oxide Minerals in Soils and Sediments: Unique Properties and Contaminant Scavenging Mechanisms journal, October 2005

Nano-aggregates of hexacyanoferrate (II)-loaded magnetite for removal of cesium from radioactive wastes journal, December 2003

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Size-Driven Structural and Thermodynamic Complexity in Iron Oxides journal, March 2008

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Synthesis and characterization of biocompatible Fe3O4 nanoparticles journal, January 2006

Improved calculations of pore size distribution for relatively large, irregular slit-shaped mesopore structure journal, January 2014

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SEQUOIA: A fine resolution chopper spectrometer at the SNS journal, November 2006

The thermodynamic properties of hydrated γ-Al 2 O 3 nanoparticles journal, December 2013

An inelastic neutron scattering study of hematite nanoparticles journal, October 2003

Multifrequency EMR and Magnetic Characterization of Synthetic Powdered Hematite journal, June 2008

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Synthesis, properties, and applications of magnetic iron oxide nanoparticles journal, March 2009

Structural and magnetic properties of uniform magnetite nanoparticles prepared by high temperature decomposition of organic precursors journal, May 2006

Size-dependence of the heat capacity and thermodynamic properties of hematite (α-Fe2O3) journal, September 2010

Magnetic excitations and heat capacity of fayalite, Fe2SiO4 journal, April 2007

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Heat capacity, third-law entropy, and low-temperature physical behavior of bulk hematite (α-Fe2O3) journal, September 2010

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The Physical Basis of Thermodynamics book, January 2001

Neutron spectroscopic investigation of dynamics of water ice journal, June 2002

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Nanophase Transition Metal Oxides Show Large Thermodynamically Driven Shifts in Oxidation-Reduction Equilibria journal, October 2010

Densities of vibrational states and heat capacities of crystalline and amorphous H 2 O ice determined by neutron scattering journal, July 1991

Surface Water and the Origin of the Positive Excess Specific Heat for 7 nm Rutile and Anatase Nanoparticles journal, April 2006

Hydrogen Bonds and Vibrations of Water on (110) Rutile journal, July 2009

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Title: Thermodynamic Properties of α-Fe₂O₃ and Fe₃O₄ Nanoparticles

Nanoparticulate Iron Oxide Minerals in Soils and Sediments: Unique Properties and Contaminant Scavenging Mechanisms
journal, October 2005

Nano-aggregates of hexacyanoferrate (II)-loaded magnetite for removal of cesium from radioactive wastes
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Use of iron oxide nanomaterials in wastewater treatment: A review
journal, May 2012

Size-Driven Structural and Thermodynamic Complexity in Iron Oxides
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Neutron scattering lengths and cross sections
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Synthesis and characterization of biocompatible Fe3O4 nanoparticles
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Improved calculations of pore size distribution for relatively large, irregular slit-shaped mesopore structure
journal, January 2014

Nuclear magnetic resonance method for the determination of specific surface area. State of adsorbed polar vapors on zeolites Linde 5A
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SEQUOIA: A fine resolution chopper spectrometer at the SNS
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The thermodynamic properties of hydrated γ-Al ₂ O ₃ nanoparticles
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An inelastic neutron scattering study of hematite nanoparticles
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Multifrequency EMR and Magnetic Characterization of Synthetic Powdered Hematite
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The electronic structures of Fe3+ coordination sites in iron oxides: Applications to spectra, bonding, and magnetism
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Heat capacity, third-law entropy, and low-temperature physical behavior of bulk hematite (α-Fe2O3)
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Thermodynamics and lattice vibrations of minerals: 1. Mineral heat capacities and their relationships to simple lattice vibrational models
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The Physical Basis of Thermodynamics
book, January 2001

Neutron spectroscopic investigation of dynamics of water ice
journal, June 2002

Influence of magnetic field on physical–chemical properties of the liquid water: Insights from experimental and theoretical models
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The effect of a static magnetic field on the hydrogen bonding in water using frictional experiments
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The wave–corpuscle duality of microscopic particles depicted by nonlinear Schrödinger equation
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Nanophase Transition Metal Oxides Show Large Thermodynamically Driven Shifts in Oxidation-Reduction Equilibria
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