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  Porous nitrogen-doped carbon/carbon nanocomposite electrodes enable sodium ion capacitors with high capacity and rate capability

Yan, R., Leus, K., Hofmann, J. P., Antonietti, M., & Oschatz, M. (2020). Porous nitrogen-doped carbon/carbon nanocomposite electrodes enable sodium ion capacitors with high capacity and rate capability. Nano Energy, 67: 104240. doi:10.1016/j.nanoen.2019.104240.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0005-1263-7 Version Permalink: https://hdl.handle.net/21.11116/0000-0008-30B4-6
Genre: Journal Article

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 Creators:
Yan, Runyu1, Author           
Leus, Karen2, Author
Hofmann, Jan P., Author
Antonietti, Markus2, Author           
Oschatz, Martin1, Author           
Affiliations:
1Martin Oschatz, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_2364733              
2Markus Antonietti, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863321              

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Free keywords: porous carbon materials, electrochemical energy storage, sodium ion capacitors, nitrogen-doped carbon, electron transport
 Abstract: The realization of electrochemical energy storage devices combining high energy and power density places high demands on the electrode materials. It remains difficult to provide high metal storage capacity and rate capability at the same time in one and the same material. By decoupling metal storage and electron transport in different phases of a nanostructured electrode composed of nitrogen-rich carbon nanoparticles which are embedded into a conductive mesoporous carbon matrix, this dilemma can be minimized. The composite material has a remarkable performance for sodium storage with a reversible capacity of 343 mAh g-1 at 0.1 A g-1 and capacity retention of 124 mAh g-1 at 20 A g-1. This work shows that a properly designed nanocomposite material can fulfill both requirements and sheds new light on resolving the seemingly conflicting energy/power density demands in current electrochemical energy storage devices.

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Language(s): eng - English
 Dates: 2019-10-312020
 Publication Status: Issued
 Pages: -
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 Identifiers: DOI: 10.1016/j.nanoen.2019.104240
BibTex Citekey: YAN2019104240
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Title: Nano Energy
  Other : Nano Energy
Source Genre: Journal
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Publ. Info: Amsterdam : Elsevier
Pages: - Volume / Issue: 67 Sequence Number: 104240 Start / End Page: - Identifier: ISSN: 2211-2855