UV-Initiated Synthesis of Electroactive High Surface Area Ta and Ti Mesoporous Oxides Composites with Polypyrrole Nanowires within the Pores

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UV-Initiated Synthesis of Electroactive High Surface Area Ta and Ti Mesoporous Oxides Composites with Polypyrrole Nanowires within the Pores. / Smith, L.A.C.; Romer, F.; Trudeau, M.L. et al.
In: ChemNanoMat, Vol. 1, No. 4, 08.2015, p. 276-284.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Bibtex

@article{e8212ef38b2e4546879354af3ee0f90f,

title = "UV-Initiated Synthesis of Electroactive High Surface Area Ta and Ti Mesoporous Oxides Composites with Polypyrrole Nanowires within the Pores",

abstract = "This paper describes the synthesis and characterization of high surface area mesoporous Ti and Ta oxides with polypyrrole nanowires in the pores. The incorporation of polymer was used to improve the electron conductivity into the channels inside these high surface area (400–1000 m2 g−1) materials in order to exploit surface redox sites for possible pseudocapacitive Li storage. Synthesis was achieved using catalyst-free UV-initiated polymerization of vapor-loaded pyrrole monomer. The best materials showed improved conductivity for both the Ti and Ta oxides as well as improved Li capacity (190 mA h g−1) relative to the pristine material (128 mA h g−1) and superior capacity retention (49 % as compared to 22 %) for the Ti composites. The retention in surface area was also 87 % compared to 49 % reported previously for analogous materials synthesized by catalyst-initiated methods, which only yielded Li capacities of 170 mA h g−1, further highlighting the superiority of this new photochemical approach. {\textcopyright} 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",

keywords = "electron conductivity, electron-conducting polymers, mesoporous materials, transition metal oxides, UV-initiated synthesis, Catalysts, Characterization, Conducting polymers, Lithium, Nanowires, Polypyrroles, Tantalum oxides, Titanium oxides, Transition metal compounds, Transition metals, Capacity retention, Electron conductivity, Electron-conducting polymers, High surface area mesoporous, Polypyrrole nanowires, Pristine materials, Synthesis and characterizations, Transition-metal oxides, Mesoporous materials",

author = "L.A.C. Smith and F. Romer and M.L. Trudeau and M.E. Smith and J.V. Hanna and D.M. Antonelli",

year = "2015",

month = aug,

doi = "10.1002/cnma.201500023",

language = "English",

volume = "1",

pages = "276--284",

journal = "ChemNanoMat",

issn = "2199-692X",

publisher = "Wiley-VCH Verlag",

number = "4",

}

RIS

TY - JOUR

T1 - UV-Initiated Synthesis of Electroactive High Surface Area Ta and Ti Mesoporous Oxides Composites with Polypyrrole Nanowires within the Pores

AU - Smith, L.A.C.

AU - Romer, F.

AU - Trudeau, M.L.

AU - Smith, M.E.

AU - Hanna, J.V.

AU - Antonelli, D.M.

PY - 2015/8

Y1 - 2015/8

N2 - This paper describes the synthesis and characterization of high surface area mesoporous Ti and Ta oxides with polypyrrole nanowires in the pores. The incorporation of polymer was used to improve the electron conductivity into the channels inside these high surface area (400–1000 m2 g−1) materials in order to exploit surface redox sites for possible pseudocapacitive Li storage. Synthesis was achieved using catalyst-free UV-initiated polymerization of vapor-loaded pyrrole monomer. The best materials showed improved conductivity for both the Ti and Ta oxides as well as improved Li capacity (190 mA h g−1) relative to the pristine material (128 mA h g−1) and superior capacity retention (49 % as compared to 22 %) for the Ti composites. The retention in surface area was also 87 % compared to 49 % reported previously for analogous materials synthesized by catalyst-initiated methods, which only yielded Li capacities of 170 mA h g−1, further highlighting the superiority of this new photochemical approach. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

AB - This paper describes the synthesis and characterization of high surface area mesoporous Ti and Ta oxides with polypyrrole nanowires in the pores. The incorporation of polymer was used to improve the electron conductivity into the channels inside these high surface area (400–1000 m2 g−1) materials in order to exploit surface redox sites for possible pseudocapacitive Li storage. Synthesis was achieved using catalyst-free UV-initiated polymerization of vapor-loaded pyrrole monomer. The best materials showed improved conductivity for both the Ti and Ta oxides as well as improved Li capacity (190 mA h g−1) relative to the pristine material (128 mA h g−1) and superior capacity retention (49 % as compared to 22 %) for the Ti composites. The retention in surface area was also 87 % compared to 49 % reported previously for analogous materials synthesized by catalyst-initiated methods, which only yielded Li capacities of 170 mA h g−1, further highlighting the superiority of this new photochemical approach. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

KW - electron conductivity

KW - electron-conducting polymers

KW - mesoporous materials

KW - transition metal oxides

KW - UV-initiated synthesis

KW - Catalysts

KW - Characterization

KW - Conducting polymers

KW - Lithium

KW - Nanowires

KW - Polypyrroles

KW - Tantalum oxides

KW - Titanium oxides

KW - Transition metal compounds

KW - Transition metals

KW - Capacity retention

KW - Electron conductivity

KW - Electron-conducting polymers

KW - High surface area mesoporous

KW - Polypyrrole nanowires

KW - Pristine materials

KW - Synthesis and characterizations

KW - Transition-metal oxides

KW - Mesoporous materials

U2 - 10.1002/cnma.201500023

DO - 10.1002/cnma.201500023

M3 - Journal article

VL - 1

SP - 276

EP - 284

JO - ChemNanoMat

JF - ChemNanoMat

SN - 2199-692X

IS - 4

ER -

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