Nanoporous polymer-derived activated carbon for hydrogen adsorption and electrochemical energy storage

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Nanoporous polymer-derived activated carbon for hydrogen adsorption and electrochemical energy storage. / Kostoglou, Nikolaos; Koczwara, Christian; Stock, Sebastian et al.
In: Chemical Engineering Journal, Vol. 427.2021, No. 1 January, 131730, 01.01.2022.

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Kostoglou N, Koczwara C, Stock S, Tampaxis C, Charalambopoulou G, Steriotis T et al. Nanoporous polymer-derived activated carbon for hydrogen adsorption and electrochemical energy storage. Chemical Engineering Journal. 2022 Jan 1;427.2021(1 January):131730. Epub 2021 Aug 8. doi: 10.1016/j.cej.2021.131730

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@article{a14bdab3b90849f6b3f5423ff03cd128,
title = "Nanoporous polymer-derived activated carbon for hydrogen adsorption and electrochemical energy storage",
abstract = "The development and in-depth characterization of multifunctional materials with versatile use in energy and environmental applications has been a topic of on-going investigations. In this work, a nanoporous polymer-/polyaniline-derived activated carbon (PDAC), with large surface area (~2200 m 2/g) and large pore volume (~1 cm 3/g), was thoroughly studied towards its applicability for H 2 storage and supercapacitor energy storage. The PDAC demonstrated a superior H 2 adsorption performance under cryogenic conditions, reaching a high and fully reversible excess gravimetric H 2 uptake of ~5.5 wt% at 77 K and ~60 bar, along with a ~8.3 kJ/mol heat of adsorption at zero coverage. Furthermore, thin PDAC electrodes with an aqueous CsCl electrolyte were combined in a supercapacitor cell that exhibited a gravimetric capacitance of ~130 F/g for a 0.5 mV/s scanning rate along with a 99% coulombic efficiency and a 100% capacitance retention after 2500 charge/discharge cycles. The PDAC material showed substantially improved H 2 and electrochemical energy storage performance compared to a well-established commercial activated carbon, which is attributed to the overall smaller pore sizes of the PDAC structure. ",
author = "Nikolaos Kostoglou and Christian Koczwara and Sebastian Stock and Christos Tampaxis and Georgia Charalambopoulou and Theodore Steriotis and Oskar Paris and Claus Rebholz and Christian Mitterer",
note = "Publisher Copyright: {\textcopyright} 2021 The Author(s)",
year = "2022",
month = jan,
day = "1",
doi = "10.1016/j.cej.2021.131730",
language = "English",
volume = "427.2021",
journal = "Chemical Engineering Journal",
issn = "1385-8947",
publisher = "Elsevier",
number = "1 January",

}

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TY - JOUR

T1 - Nanoporous polymer-derived activated carbon for hydrogen adsorption and electrochemical energy storage

AU - Kostoglou, Nikolaos

AU - Koczwara, Christian

AU - Stock, Sebastian

AU - Tampaxis, Christos

AU - Charalambopoulou, Georgia

AU - Steriotis, Theodore

AU - Paris, Oskar

AU - Rebholz, Claus

AU - Mitterer, Christian

N1 - Publisher Copyright: © 2021 The Author(s)

PY - 2022/1/1

Y1 - 2022/1/1

N2 - The development and in-depth characterization of multifunctional materials with versatile use in energy and environmental applications has been a topic of on-going investigations. In this work, a nanoporous polymer-/polyaniline-derived activated carbon (PDAC), with large surface area (~2200 m 2/g) and large pore volume (~1 cm 3/g), was thoroughly studied towards its applicability for H 2 storage and supercapacitor energy storage. The PDAC demonstrated a superior H 2 adsorption performance under cryogenic conditions, reaching a high and fully reversible excess gravimetric H 2 uptake of ~5.5 wt% at 77 K and ~60 bar, along with a ~8.3 kJ/mol heat of adsorption at zero coverage. Furthermore, thin PDAC electrodes with an aqueous CsCl electrolyte were combined in a supercapacitor cell that exhibited a gravimetric capacitance of ~130 F/g for a 0.5 mV/s scanning rate along with a 99% coulombic efficiency and a 100% capacitance retention after 2500 charge/discharge cycles. The PDAC material showed substantially improved H 2 and electrochemical energy storage performance compared to a well-established commercial activated carbon, which is attributed to the overall smaller pore sizes of the PDAC structure.

AB - The development and in-depth characterization of multifunctional materials with versatile use in energy and environmental applications has been a topic of on-going investigations. In this work, a nanoporous polymer-/polyaniline-derived activated carbon (PDAC), with large surface area (~2200 m 2/g) and large pore volume (~1 cm 3/g), was thoroughly studied towards its applicability for H 2 storage and supercapacitor energy storage. The PDAC demonstrated a superior H 2 adsorption performance under cryogenic conditions, reaching a high and fully reversible excess gravimetric H 2 uptake of ~5.5 wt% at 77 K and ~60 bar, along with a ~8.3 kJ/mol heat of adsorption at zero coverage. Furthermore, thin PDAC electrodes with an aqueous CsCl electrolyte were combined in a supercapacitor cell that exhibited a gravimetric capacitance of ~130 F/g for a 0.5 mV/s scanning rate along with a 99% coulombic efficiency and a 100% capacitance retention after 2500 charge/discharge cycles. The PDAC material showed substantially improved H 2 and electrochemical energy storage performance compared to a well-established commercial activated carbon, which is attributed to the overall smaller pore sizes of the PDAC structure.

UR - http://www.scopus.com/inward/record.url?scp=85113155946&partnerID=8YFLogxK

U2 - 10.1016/j.cej.2021.131730

DO - 10.1016/j.cej.2021.131730

M3 - Article

VL - 427.2021

JO - Chemical Engineering Journal

JF - Chemical Engineering Journal

SN - 1385-8947

IS - 1 January

M1 - 131730

ER -