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Laser irradiation o...
Laser irradiation of photothermal precursors – a novel approach to produce carbon materials for supercapacitors
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- Tammela, Petter, 1986- (författare)
- Uppsala universitet,Nanoteknologi och funktionella material
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- Iurchenkova, Anna A., 1997- (författare)
- Uppsala universitet,Nanoteknologi och funktionella material,Department of Material Sciences Ångström laboratory Uppsala University Box 35 SE-751 03 Uppsala Sweden
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- Wang, Zhaohui (författare)
- Department of Material Sciences Ångström laboratory Uppsala University Box 35 SE-751 03 Uppsala Sweden;College of Materials Science and Engineering Hunan University 410082 Changsha Hunan China
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- Strömme, Maria, 1970- (författare)
- Uppsala universitet,Nanoteknologi och funktionella material,Department of Material Sciences Ångström laboratory Uppsala University Box 35 SE-751 03 Uppsala Sweden
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- Nyholm, Leif, 1961- (författare)
- Uppsala universitet,Oorganisk kemi,Fysikalisk kemi,Department of Chemistry Ångström Laboratory Uppsala University Box 538 SE-751 21 Uppsala Sweden
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- Lindh, Jonas, 1977- (författare)
- Uppsala universitet,Nanoteknologi och funktionella material,Department of Material Sciences Ångström laboratory Uppsala University Box 35 SE-751 03 Uppsala Sweden
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(creator_code:org_t)
- Society Publishing, 2024
- 2024
- Engelska.
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Ingår i: ChemSusChem. - : Society Publishing. - 1864-5631 .- 1864-564X. ; , s. 1-11
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- A wide array of carbon materials finds extensive utility across various industrial applications today. Nonetheless, the production processes for these materials continue to entail elevated temperatures, necessitate the use of inert atmospheres, and often involve the handling of aggressive and toxic chemicals. The prevalent method for large-scale carbon material production, namely the pyrolysis of waste biomass and polymers, typically unfolds within the temperature range of 500–700 °C under a nitrogen (N2) atmosphere. Unfortunately, this approach suffers from significant energy inefficiency due to substantial heat loss over extended processing durations. In this work, we propose an interesting alternative: the carbonization of photothermal nanocellulose/polypyrrole composite films through CO2 laser irradiation in the presence of air. This innovative technique offers a swift and energy-efficient means of preparing carbon materials. The unique interaction between nanocellulose and polypyrrole imparts the film with sufficient stability to retain its structural integrity post-carbonization. This breakthrough opens up new avenues for producing binder-free electrodes using a rapid and straightforward approach. Furthermore, the irradiated film demonstrates specific and areal capacitances of 159 F g−1 and 62 μF cm−2, respectively, when immersed in a 2 M NaOH electrolyte. These values significantly surpass those achieved by current commercial activated carbons. Together, these attributes render CO2-laser carbonization an environmentally sustainable and ecologically friendly method for carbon material production.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Nanoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Nano-technology (hsv//eng)
Nyckelord
- Engineering Science with specialization in Nanotechnology and Functional Materials
- Teknisk fysik med inriktning mot nanoteknologi och funktionella material
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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- Av författaren/redakt...
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Tammela, Petter, ...
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Iurchenkova, Ann ...
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Wang, Zhaohui
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Strömme, Maria, ...
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Nyholm, Leif, 19 ...
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Lindh, Jonas, 19 ...
- Om ämnet
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- TEKNIK OCH TEKNOLOGIER
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TEKNIK OCH TEKNO ...
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och Nanoteknik
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ChemSusChem
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Uppsala universitet