TY - JOUR
T1 - Fibrous network of highly integrated carbon nanotubes/MoO3 composite bundles anchored with MoO3 nanoplates for superior lithium ion battery anodes
AU - Oh, Se Hwan
AU - Park, Seong Mi
AU - Kang, Dong Won
AU - Kang, Yun Chan
AU - Cho, Jung Sang
N1 - Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea Government (MSIP) (NRF-2018R1A4A1024691, NRF-2017M1A2A2087577, and NRF-2018R1D1A3B07042514).
Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea Government (MSIP) ( NRF-2018R1A4A1024691 , NRF-2017M1A2A2087577 , and NRF-2018R1D1A3B07042514 ). Appendix A
Publisher Copyright:
© 2019 The Korean Society of Industrial and Engineering Chemistry
PY - 2020/3/25
Y1 - 2020/3/25
N2 - Fibrous network of highly-integrated CNTs/MoO3 composite bundle in which CNTs anchored with MoO3 nanoplates was prepared by electrospinning process and subsequent simple heat-treatment. By performing the pre-acid-treatments of both CNTs and PAN, dipole-dipole interactions and hydrogen bonding between CNTs and PAN could form MoO2(acac)2-PAN-CNTs complex in a solution, which allows for the formation of a stable jet during electrospinning. Notably, by selectively removing PAN in as-spun fibers during heat-treatment, a highly integrated CNTs/MoO3 bundle network anchored with MoO3 nanoplates was obtained. This unique CNTs/MoO3 percolation network makes it possible to achieve a superior lithium ion storage performance by improving electrical conductivity and structure stability. Thus, the unique nanostructure has high discharge capacities of 972 mA h g−1 after 100 cycles at 1.0 A g−1 and 905 mA h g−1 after 800 long-term cycles at 2.0 A g−1, when applied as anode materials for lithium-ion batteries. The discharge capacities of 980, 920, 819, 742, 599, 484, and 374 mA h g−1 were observed at current densities of 0.5, 1.0, 2.0, 3.0, 5.0, 7.0, and 10.0 A g−1, respectively.
AB - Fibrous network of highly-integrated CNTs/MoO3 composite bundle in which CNTs anchored with MoO3 nanoplates was prepared by electrospinning process and subsequent simple heat-treatment. By performing the pre-acid-treatments of both CNTs and PAN, dipole-dipole interactions and hydrogen bonding between CNTs and PAN could form MoO2(acac)2-PAN-CNTs complex in a solution, which allows for the formation of a stable jet during electrospinning. Notably, by selectively removing PAN in as-spun fibers during heat-treatment, a highly integrated CNTs/MoO3 bundle network anchored with MoO3 nanoplates was obtained. This unique CNTs/MoO3 percolation network makes it possible to achieve a superior lithium ion storage performance by improving electrical conductivity and structure stability. Thus, the unique nanostructure has high discharge capacities of 972 mA h g−1 after 100 cycles at 1.0 A g−1 and 905 mA h g−1 after 800 long-term cycles at 2.0 A g−1, when applied as anode materials for lithium-ion batteries. The discharge capacities of 980, 920, 819, 742, 599, 484, and 374 mA h g−1 were observed at current densities of 0.5, 1.0, 2.0, 3.0, 5.0, 7.0, and 10.0 A g−1, respectively.
KW - Anode materials
KW - CNTs
KW - Electrospinning
KW - Lithium ion batteries
KW - MoO
UR - http://www.scopus.com/inward/record.url?scp=85077739856&partnerID=8YFLogxK
U2 - 10.1016/j.jiec.2019.12.017
DO - 10.1016/j.jiec.2019.12.017
M3 - Article
AN - SCOPUS:85077739856
VL - 83
SP - 438
EP - 448
JO - Journal of Industrial and Engineering Chemistry
JF - Journal of Industrial and Engineering Chemistry
SN - 1226-086X
ER -