Supported metallocene catalysis for in situ synthesis of high energy density metal oxide nanocomposites

Neng Guo, Sara A. DiBenedetto, Do Kyun Kwon, Lian Wang, Matthew T. Russell, Michael T. Lanagan, Antonio Facchetti, Tobin J Marks

Research output: Contribution to journalArticle

90 Citations (Scopus)

Abstract

The 0-3 metal oxide-isotactic polypropylene nanocomposites are synthesized via in situ propylene polymerization using the C2-symmetric metallocene catalyst dichloro[rac-ethylenebisindenyl]zirconium(IV) (EBIZrCl2) immobilized on methylaluminoxane (MAO)-treated barium titanate (BaTiO3) or titanium dioxide (TiO2) nanoparticles. The composite materials are characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and 13C nuclear magnetic resonance (NMR) spectroscopy. It is shown that the nanoparticles are homogeneously dispersed in the polyolefin matrices. Electrical measurements reveal nanocomposite leakage current densities of 10-6 to 10-9 A/cm2, permittivities as high as 6.1, and breakdown strengths of ∼4 MV/cm. Energy densities are estimated to be as high as 9.4 J/cm3.

Original languageEnglish
Pages (from-to)766-767
Number of pages2
JournalJournal of the American Chemical Society
Volume129
Issue number4
DOIs
Publication statusPublished - Jan 31 2007

Fingerprint

Nanocomposites
Catalysis
Nanoparticles
Oxides
Metals
Polypropylene oxides
Barium titanate
Polypropylenes
Polyolefins
Transmission Electron Microscopy
Zirconium
X-Ray Diffraction
Leakage currents
Polymerization
Electron Scanning Microscopy
Titanium dioxide
Nuclear magnetic resonance spectroscopy
Propylene
Permittivity
Current density

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Supported metallocene catalysis for in situ synthesis of high energy density metal oxide nanocomposites. / Guo, Neng; DiBenedetto, Sara A.; Kwon, Do Kyun; Wang, Lian; Russell, Matthew T.; Lanagan, Michael T.; Facchetti, Antonio; Marks, Tobin J.

In: Journal of the American Chemical Society, Vol. 129, No. 4, 31.01.2007, p. 766-767.

Research output: Contribution to journalArticle

Guo, Neng ; DiBenedetto, Sara A. ; Kwon, Do Kyun ; Wang, Lian ; Russell, Matthew T. ; Lanagan, Michael T. ; Facchetti, Antonio ; Marks, Tobin J. / Supported metallocene catalysis for in situ synthesis of high energy density metal oxide nanocomposites. In: Journal of the American Chemical Society. 2007 ; Vol. 129, No. 4. pp. 766-767.
@article{f85bee6f07114694b3935229d51574b2,
title = "Supported metallocene catalysis for in situ synthesis of high energy density metal oxide nanocomposites",
abstract = "The 0-3 metal oxide-isotactic polypropylene nanocomposites are synthesized via in situ propylene polymerization using the C2-symmetric metallocene catalyst dichloro[rac-ethylenebisindenyl]zirconium(IV) (EBIZrCl2) immobilized on methylaluminoxane (MAO)-treated barium titanate (BaTiO3) or titanium dioxide (TiO2) nanoparticles. The composite materials are characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and 13C nuclear magnetic resonance (NMR) spectroscopy. It is shown that the nanoparticles are homogeneously dispersed in the polyolefin matrices. Electrical measurements reveal nanocomposite leakage current densities of ∼10-6 to 10-9 A/cm2, permittivities as high as 6.1, and breakdown strengths of ∼4 MV/cm. Energy densities are estimated to be as high as 9.4 J/cm3.",
author = "Neng Guo and DiBenedetto, {Sara A.} and Kwon, {Do Kyun} and Lian Wang and Russell, {Matthew T.} and Lanagan, {Michael T.} and Antonio Facchetti and Marks, {Tobin J}",
year = "2007",
month = "1",
day = "31",
doi = "10.1021/ja066965l",
language = "English",
volume = "129",
pages = "766--767",
journal = "Journal of the American Chemical Society",
issn = "0002-7863",
publisher = "American Chemical Society",
number = "4",

}

TY - JOUR

T1 - Supported metallocene catalysis for in situ synthesis of high energy density metal oxide nanocomposites

AU - Guo, Neng

AU - DiBenedetto, Sara A.

AU - Kwon, Do Kyun

AU - Wang, Lian

AU - Russell, Matthew T.

AU - Lanagan, Michael T.

AU - Facchetti, Antonio

AU - Marks, Tobin J

PY - 2007/1/31

Y1 - 2007/1/31

N2 - The 0-3 metal oxide-isotactic polypropylene nanocomposites are synthesized via in situ propylene polymerization using the C2-symmetric metallocene catalyst dichloro[rac-ethylenebisindenyl]zirconium(IV) (EBIZrCl2) immobilized on methylaluminoxane (MAO)-treated barium titanate (BaTiO3) or titanium dioxide (TiO2) nanoparticles. The composite materials are characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and 13C nuclear magnetic resonance (NMR) spectroscopy. It is shown that the nanoparticles are homogeneously dispersed in the polyolefin matrices. Electrical measurements reveal nanocomposite leakage current densities of ∼10-6 to 10-9 A/cm2, permittivities as high as 6.1, and breakdown strengths of ∼4 MV/cm. Energy densities are estimated to be as high as 9.4 J/cm3.

AB - The 0-3 metal oxide-isotactic polypropylene nanocomposites are synthesized via in situ propylene polymerization using the C2-symmetric metallocene catalyst dichloro[rac-ethylenebisindenyl]zirconium(IV) (EBIZrCl2) immobilized on methylaluminoxane (MAO)-treated barium titanate (BaTiO3) or titanium dioxide (TiO2) nanoparticles. The composite materials are characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and 13C nuclear magnetic resonance (NMR) spectroscopy. It is shown that the nanoparticles are homogeneously dispersed in the polyolefin matrices. Electrical measurements reveal nanocomposite leakage current densities of ∼10-6 to 10-9 A/cm2, permittivities as high as 6.1, and breakdown strengths of ∼4 MV/cm. Energy densities are estimated to be as high as 9.4 J/cm3.

UR - http://www.scopus.com/inward/record.url?scp=33846593552&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33846593552&partnerID=8YFLogxK

U2 - 10.1021/ja066965l

DO - 10.1021/ja066965l

M3 - Article

VL - 129

SP - 766

EP - 767

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

SN - 0002-7863

IS - 4

ER -