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

Runyu Yan (Corresponding author), Karen Leus, Jan P. Hofmann, Markus Antonietti, Martin Oschatz (Corresponding author)

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

1 Downloads (Pure)

Uittreksel

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.

Originele taal-2Engels
Artikelnummer104240
Aantal pagina's8
TijdschriftNano Energy
Volume67
DOI's
StatusGepubliceerd - jan 2020

Vingerafdruk

Energy storage
Nanocomposites
Capacitors
Nitrogen
Carbon
Metals
Sodium
Ions
Electrodes
Nanoparticles
Composite materials
Electron Transport

Citeer dit

@article{5dd3a4d68f934c9cab34f76990150fe6,
title = "Porous nitrogen-doped carbon/carbon nanocomposite electrodes enable sodium ion capacitors with high capacity and rate capability",
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.",
keywords = "Electrochemical energy storage, Electron transport, Nitrogen-doped carbon, Porous carbon materials, Sodium ion capacitors",
author = "Runyu Yan and Karen Leus and Hofmann, {Jan P.} and Markus Antonietti and Martin Oschatz",
year = "2020",
month = "1",
doi = "10.1016/j.nanoen.2019.104240",
language = "English",
volume = "67",
journal = "Nano Energy",
issn = "2211-2855",
publisher = "Elsevier",

}

Porous nitrogen-doped carbon/carbon nanocomposite electrodes enable sodium ion capacitors with high capacity and rate capability. / Yan, Runyu (Corresponding author); Leus, Karen; Hofmann, Jan P.; Antonietti, Markus; Oschatz, Martin (Corresponding author).

In: Nano Energy, Vol. 67, 104240, 01.2020.

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

TY - JOUR

T1 - Porous nitrogen-doped carbon/carbon nanocomposite electrodes enable sodium ion capacitors with high capacity and rate capability

AU - Yan, Runyu

AU - Leus, Karen

AU - Hofmann, Jan P.

AU - Antonietti, Markus

AU - Oschatz, Martin

PY - 2020/1

Y1 - 2020/1

N2 - 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.

AB - 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.

KW - Electrochemical energy storage

KW - Electron transport

KW - Nitrogen-doped carbon

KW - Porous carbon materials

KW - Sodium ion capacitors

UR - http://www.scopus.com/inward/record.url?scp=85075452637&partnerID=8YFLogxK

U2 - 10.1016/j.nanoen.2019.104240

DO - 10.1016/j.nanoen.2019.104240

M3 - Article

AN - SCOPUS:85075452637

VL - 67

JO - Nano Energy

JF - Nano Energy

SN - 2211-2855

M1 - 104240

ER -