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Title: Low-Temperature Fluorination of Soft-Templated Mesoporous Carbons for a High-Power Lithium/Carbon Fluoride Battery

Abstract

Soft-templated mesoporous carbons and activated mesoporous carbons were fluorinated using elemental fluorine between room temperature and 235 °C. The mesoporous carbons were prepared via self-assembly synthesis of phloroglucinol–formaldehyde as a carbon precursor in the presence of triblock ethylene oxide–propylene oxide–ethylene oxide copolymer BASF Pluronic F127 as the template. The F/C ratios ranged from ~0.15 to 0.75 according to gravimetric, energy dispersive X-ray spectroscopy, and X-ray photoelectron spectroscopy analysis. Materials have mesopore diameters up to 11 nm and specific surface areas as high as 850 m² g⁻¹ after fluorination as calculated from nitrogen adsorption isotherms at -196 °C. Furthermore, the materials exhibit higher discharge potentials and energy and power densities as well as faster reaction kinetics under high current densities than commercial carbon fluorides with similar fluorine contents when tested as cathodes for Li/CF x batteries.

Authors:
 [1];  [2];  [2];  [1];  [1];  [1];  [1];  [3];  [4]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Chemical Sciences Division
  2. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Chemistry
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science & Technology Division
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science & Technology Division; Univ. of Tennessee, Knoxville, TN (United States). Dept. of Chemistry
Publication Date:
Research Org.:
Energy Frontier Research Centers (EFRC); Fluid Interface Reactions, Structures and Transport Center (FIRST)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1065751
DOE Contract Number:  
ERKCC61
Resource Type:
Journal Article
Journal Name:
Chemistry of Materials
Additional Journal Information:
Journal Volume: 23; Journal Issue: 20; Related Information: FIRST partners with Oak Ridge National Laboratory (lead); Argonne National Laboratory; Drexel University; Georgia State University; Northwestern University; Pennsylvania State University; Suffolk University; Vanderbilt University; University of Virginia; Journal ID: ISSN 0897-4756
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; catalysis (heterogeneous), solar (fuels), energy storage (including batteries and capacitors), hydrogen and fuel cells, electrodes - solar, mechanical behavior, charge transport, materials and chemistry by design, synthesis (novel materials)

Citation Formats

Fulvio, Pasquale F., Brown, Suree S., Adcock, Jamie, Mayes, Richard T., Guo, Bingkun, Sun, Xiao-Guang, Mahurin, Shannon M., Veith, Gabriel M., and Dai, Sheng. Low-Temperature Fluorination of Soft-Templated Mesoporous Carbons for a High-Power Lithium/Carbon Fluoride Battery. United States: N. p., 2011. Web. doi:10.1021/cm2012395.
Fulvio, Pasquale F., Brown, Suree S., Adcock, Jamie, Mayes, Richard T., Guo, Bingkun, Sun, Xiao-Guang, Mahurin, Shannon M., Veith, Gabriel M., & Dai, Sheng. Low-Temperature Fluorination of Soft-Templated Mesoporous Carbons for a High-Power Lithium/Carbon Fluoride Battery. United States. doi:10.1021/cm2012395.
Fulvio, Pasquale F., Brown, Suree S., Adcock, Jamie, Mayes, Richard T., Guo, Bingkun, Sun, Xiao-Guang, Mahurin, Shannon M., Veith, Gabriel M., and Dai, Sheng. Thu . "Low-Temperature Fluorination of Soft-Templated Mesoporous Carbons for a High-Power Lithium/Carbon Fluoride Battery". United States. doi:10.1021/cm2012395.
@article{osti_1065751,
title = {Low-Temperature Fluorination of Soft-Templated Mesoporous Carbons for a High-Power Lithium/Carbon Fluoride Battery},
author = {Fulvio, Pasquale F. and Brown, Suree S. and Adcock, Jamie and Mayes, Richard T. and Guo, Bingkun and Sun, Xiao-Guang and Mahurin, Shannon M. and Veith, Gabriel M. and Dai, Sheng},
abstractNote = {Soft-templated mesoporous carbons and activated mesoporous carbons were fluorinated using elemental fluorine between room temperature and 235 °C. The mesoporous carbons were prepared via self-assembly synthesis of phloroglucinol–formaldehyde as a carbon precursor in the presence of triblock ethylene oxide–propylene oxide–ethylene oxide copolymer BASF Pluronic F127 as the template. The F/C ratios ranged from ~0.15 to 0.75 according to gravimetric, energy dispersive X-ray spectroscopy, and X-ray photoelectron spectroscopy analysis. Materials have mesopore diameters up to 11 nm and specific surface areas as high as 850 m² g⁻¹ after fluorination as calculated from nitrogen adsorption isotherms at -196 °C. Furthermore, the materials exhibit higher discharge potentials and energy and power densities as well as faster reaction kinetics under high current densities than commercial carbon fluorides with similar fluorine contents when tested as cathodes for Li/CFx batteries.},
doi = {10.1021/cm2012395},
journal = {Chemistry of Materials},
issn = {0897-4756},
number = 20,
volume = 23,
place = {United States},
year = {2011},
month = {9}
}