High specific capacitance supercapacitors from hierarchically organized all-cellulose composites
M.A. Hobisch, E. Mourad, W.J. Fischer, C. Prehal, S. Eyley, A. Childress, A. Zankel, A. Mautner, S. Breitenbach, A.M. Rao, W. Thielemans, S.A. Freunberger, R. Eckhart, W. Bauer, S. Spirk, (n.d.).
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Author
Hobisch, Mathias A. ;
Mourad, Eléonore ;
Fischer, Wolfgang J. ;
Prehal, Christian ;
Eyley, Samuel ;
Childress, Anthony ;
Zankel, Armin ;
Mautner, Andreas ;
Breitenbach, Stefan ;
Rao, Apparao M. ;
Thielemans, Wim ;
Freunberger, Stefan AlexanderIST Austria
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Abstract
Here, we employ micro- and nanosized cellulose particles, namely paper fines and cellulose
nanocrystals, to induce hierarchical organization over a wide length scale. After processing
them into carbonaceous materials, we demonstrate that these hierarchically organized materials
outperform the best materials for supercapacitors operating with organic electrolytes reported
in literature in terms of specific energy/power (Ragone plot) while showing hardly any capacity
fade over 4,000 cycles. The highly porous materials feature a specific surface area as high as
2500 m2ˑg-1 and exhibit pore sizes in the range of 0.5 to 200 nm as proven by scanning electron
microscopy and N2 physisorption. The carbonaceous materials have been further investigated
by X-ray photoelectron spectroscopy and RAMAN spectroscopy. Since paper fines are an
underutilized side stream in any paper production process, they are a cheap and highly available
feedstock to prepare carbonaceous materials with outstanding performance in electrochemical
applications.
Publishing Year
Date Published
2020-07-13
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Cite this
Hobisch MA, Mourad E, Fischer WJ, et al. High specific capacitance supercapacitors from hierarchically organized all-cellulose composites.
Hobisch, M. A., Mourad, E., Fischer, W. J., Prehal, C., Eyley, S., Childress, A., … Spirk, S. (n.d.). High specific capacitance supercapacitors from hierarchically organized all-cellulose composites.
Hobisch, Mathias A. , Eléonore Mourad, Wolfgang J. Fischer, Christian Prehal, Samuel Eyley, Anthony Childress, Armin Zankel, et al. “High Specific Capacitance Supercapacitors from Hierarchically Organized All-Cellulose Composites,” n.d.
M. A. Hobisch et al., “High specific capacitance supercapacitors from hierarchically organized all-cellulose composites.” .
Hobisch MA, Mourad E, Fischer WJ, Prehal C, Eyley S, Childress A, Zankel A, Mautner A, Breitenbach S, Rao AM, Thielemans W, Freunberger SA, Eckhart R, Bauer W, Spirk S. High specific capacitance supercapacitors from hierarchically organized all-cellulose composites.
Hobisch, Mathias A., et al. High Specific Capacitance Supercapacitors from Hierarchically Organized All-Cellulose Composites.
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