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Title: Ethanol Reduced Molybdenum Trioxide for Li-ion Capacitors

Orthorhombic molybdenum trioxide (α-MoO 3) is a layered oxide with promising performance as electrode material for Li-ion capacitors. In this study, we show that expansion of the interlayer spacing (by ~0.32 Å) of the structure along the b-axis, introduced by partial reduction of α-MoO 3 and formation of MoO 3-x (x=0.06–0.43), results in enhanced diffusion of Li ions. Binder-free hybrid electrodes made of MoO 3-x nanobelts and carbon nanotubes show excellent electrical conductivity. The combination of increased interlayer spacing and enhanced electron transport leads to high gravimetric and volumetric capacitances of about 420 F/g or F/cm 3 and excellent cycle life of binder-free MoO 3-x electrodes.
Authors:
 [1] ;  [2] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [3] ;  [1]
  1. Huazhong University of Science and Technology, Wuhan (China)
  2. Auburn Univ., AL (United States)
  3. Drexel Univ., Philadelphia, PA (United States)
Publication Date:
Grant/Contract Number:
AC05-00OR22725
Type:
Accepted Manuscript
Journal Name:
Nano Energy
Additional Journal Information:
Journal Volume: 26; Journal ID: ISSN 2211-2855
Publisher:
Elsevier
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE
OSTI Identifier:
1346635
Alternate Identifier(s):
OSTI ID: 1338416

Li, Tianqi, Beidaghi, Majid, Xiao, Xu, Huang, Liang, Hu, Zhimi, Sun, Wanmei, Chen, Xun, Gogotsi, Yury G., and Zhou, Jun. Ethanol Reduced Molybdenum Trioxide for Li-ion Capacitors. United States: N. p., Web. doi:10.1016/j.nanoen.2016.05.004.
Li, Tianqi, Beidaghi, Majid, Xiao, Xu, Huang, Liang, Hu, Zhimi, Sun, Wanmei, Chen, Xun, Gogotsi, Yury G., & Zhou, Jun. Ethanol Reduced Molybdenum Trioxide for Li-ion Capacitors. United States. doi:10.1016/j.nanoen.2016.05.004.
Li, Tianqi, Beidaghi, Majid, Xiao, Xu, Huang, Liang, Hu, Zhimi, Sun, Wanmei, Chen, Xun, Gogotsi, Yury G., and Zhou, Jun. 2016. "Ethanol Reduced Molybdenum Trioxide for Li-ion Capacitors". United States. doi:10.1016/j.nanoen.2016.05.004. https://www.osti.gov/servlets/purl/1346635.
@article{osti_1346635,
title = {Ethanol Reduced Molybdenum Trioxide for Li-ion Capacitors},
author = {Li, Tianqi and Beidaghi, Majid and Xiao, Xu and Huang, Liang and Hu, Zhimi and Sun, Wanmei and Chen, Xun and Gogotsi, Yury G. and Zhou, Jun},
abstractNote = {Orthorhombic molybdenum trioxide (α-MoO3) is a layered oxide with promising performance as electrode material for Li-ion capacitors. In this study, we show that expansion of the interlayer spacing (by ~0.32 Å) of the structure along the b-axis, introduced by partial reduction of α-MoO3 and formation of MoO3-x (x=0.06–0.43), results in enhanced diffusion of Li ions. Binder-free hybrid electrodes made of MoO3-x nanobelts and carbon nanotubes show excellent electrical conductivity. The combination of increased interlayer spacing and enhanced electron transport leads to high gravimetric and volumetric capacitances of about 420 F/g or F/cm3 and excellent cycle life of binder-free MoO3-x electrodes.},
doi = {10.1016/j.nanoen.2016.05.004},
journal = {Nano Energy},
number = ,
volume = 26,
place = {United States},
year = {2016},
month = {5}
}