Converting PBO fibers into carbon fibers by ultrafast carbonization

Liwen Zhang; Małgorzata Kowalik; Zan Gao; Chowdhury M. Ashraf; Siavash Rajabpour; Clifton Bumgardner; Yosyp Schwab; Behzad Damirchi; Jiadeng Zhu; Dooman Akbarian; James W. Klett; Adri C.T. van Duin; Xiaodong Li

doi:10.1016/j.carbon.2019.12.067

Converting PBO fibers into carbon fibers by ultrafast carbonization

Liwen Zhang, Małgorzata Kowalik, Zan Gao, Chowdhury M. Ashraf, Siavash Rajabpour, Clifton Bumgardner, Yosyp Schwab, Behzad Damirchi, Jiadeng Zhu, Dooman Akbarian, James W. Klett, Adri C.T. van Duin, Xiaodong Li

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29 Scopus citations

Abstract

We report an ultrafast transformation of poly(p-phenylene-2,6-benzobisoxazole) (PBO) fibers into carbon fibers (CFs) by direct carbonization that eliminates high-cost oxidation in traditional CF conversion. Ultrafast heating and cooling render PBO-derived CFs superlative mechanical properties. ReaxFF atomistic-scale reactive molecular dynamics simulations unveil the PBO to CF conversion mechanism in which ultrafast heating suppresses the O-contained gas release, facilitating all-carbon rings alignment during the carbonization of PBO. These findings provide new guidelines for identifying and evaluating alternative CF precursors and fresh perspectives on smart manufacturing of CFs.

Original language	English
Pages (from-to)	432-442
Number of pages	11
Journal	Carbon
Volume	159
DOIs	https://doi.org/10.1016/j.carbon.2019.12.067
State	Published - Apr 15 2020

Funding

Financial support for this study was provided by the U.S. Department of Energy, Vehicle Technologies Office (DE-EE0008195). The authors thank the staff members at the University of Virginia NMCF for XRD and electron microscopy technical support and thank Prof. Philip Bradford's group in North Carolina State University for furnace support. Financial support for this study was provided by the U.S. Department of Energy, Vehicle Technologies Office ( DE-EE0008195 ). The authors thank the staff members at the University of Virginia NMCF for XRD and electron microscopy technical support and thank Prof. Philip Bradford’s group in North Carolina State University for furnace support. Appendix A

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title = "Converting PBO fibers into carbon fibers by ultrafast carbonization",

abstract = "We report an ultrafast transformation of poly(p-phenylene-2,6-benzobisoxazole) (PBO) fibers into carbon fibers (CFs) by direct carbonization that eliminates high-cost oxidation in traditional CF conversion. Ultrafast heating and cooling render PBO-derived CFs superlative mechanical properties. ReaxFF atomistic-scale reactive molecular dynamics simulations unveil the PBO to CF conversion mechanism in which ultrafast heating suppresses the O-contained gas release, facilitating all-carbon rings alignment during the carbonization of PBO. These findings provide new guidelines for identifying and evaluating alternative CF precursors and fresh perspectives on smart manufacturing of CFs.",

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doi = "10.1016/j.carbon.2019.12.067",

language = "English",

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T1 - Converting PBO fibers into carbon fibers by ultrafast carbonization

AU - Zhang, Liwen

AU - Kowalik, Małgorzata

AU - Gao, Zan

AU - Ashraf, Chowdhury M.

AU - Rajabpour, Siavash

AU - Bumgardner, Clifton

AU - Schwab, Yosyp

AU - Damirchi, Behzad

AU - Zhu, Jiadeng

AU - Akbarian, Dooman

AU - Klett, James W.

AU - van Duin, Adri C.T.

AU - Li, Xiaodong

PY - 2020/4/15

Y1 - 2020/4/15

N2 - We report an ultrafast transformation of poly(p-phenylene-2,6-benzobisoxazole) (PBO) fibers into carbon fibers (CFs) by direct carbonization that eliminates high-cost oxidation in traditional CF conversion. Ultrafast heating and cooling render PBO-derived CFs superlative mechanical properties. ReaxFF atomistic-scale reactive molecular dynamics simulations unveil the PBO to CF conversion mechanism in which ultrafast heating suppresses the O-contained gas release, facilitating all-carbon rings alignment during the carbonization of PBO. These findings provide new guidelines for identifying and evaluating alternative CF precursors and fresh perspectives on smart manufacturing of CFs.

AB - We report an ultrafast transformation of poly(p-phenylene-2,6-benzobisoxazole) (PBO) fibers into carbon fibers (CFs) by direct carbonization that eliminates high-cost oxidation in traditional CF conversion. Ultrafast heating and cooling render PBO-derived CFs superlative mechanical properties. ReaxFF atomistic-scale reactive molecular dynamics simulations unveil the PBO to CF conversion mechanism in which ultrafast heating suppresses the O-contained gas release, facilitating all-carbon rings alignment during the carbonization of PBO. These findings provide new guidelines for identifying and evaluating alternative CF precursors and fresh perspectives on smart manufacturing of CFs.

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Converting PBO fibers into carbon fibers by ultrafast carbonization

Abstract

Funding

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