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Large-Scale and Low-Cost Motivation of Nitrogen-Doped Commercial Activated Carbon for High-Energy-Density Supercapacitor
West Pomeranian Univ Technol, Poland.
West Pomeranian Univ Technol, Poland.
West Pomeranian Univ Technol, Poland; Chinese Acad Sci, Peoples R China.
Shanghai Univ, Peoples R China.
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2019 (English)In: ACS APPLIED ENERGY MATERIALS, ISSN 2574-0962, Vol. 2, no 6, p. 4234-4243Article in journal (Refereed) Published
Abstract [en]

The growing requirement for high-performance energy-storage devices has spurred the development of supercapacitors, but the low energy density remains a technical hurdle. In this work, porous nitrogen-doped activated carbon (NAC) is prepared on a large scale from commercial activated carbon (AC) and inexpensive chemicals by a one-step method. The NAC material with 3.1 wt % nitrogen has a high specific surface area of 1186 m(2) g(-1) and shows a specific capacitance of 427 F g(-1) in a symmetric cell with an aqueous electrolyte. 98.2% of the capacity is reserved after 20 000 cycles at 20 A g(-1). The energy densities of the NAC are 17.2 and 87.8 Wh kg(-1) in acidic and organic electrolytes, respectively. Moreover, this simple process is readily scalable to address commercial demand and can be extended to the motivation of a variety of carbon based materials with poor capacitances.

Place, publisher, year, edition, pages
AMER CHEMICAL SOC , 2019. Vol. 2, no 6, p. 4234-4243
Keywords [en]
supercapacitor; heteroatom doping; activated carbon; CVD; low cost; energy storage
National Category
Materials Chemistry
Identifiers
URN: urn:nbn:se:liu:diva-158980DOI: 10.1021/acsaem.9b00481ISI: 000473116600035OAI: oai:DiVA.org:liu-158980DiVA, id: diva2:1338128
Note

Funding Agencies|National Science Centre, Poland [OPUS 2017/252/B/ST8/02702]; City University of Hong Kong Strategic Research Grant (SRG) [7005105]

Available from: 2019-07-19 Created: 2019-07-19 Last updated: 2019-07-19

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Surface Physics and ChemistryFaculty of Science & Engineering
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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
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  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
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  • asciidoc
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