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Mapping nitrogen heteroatoms in carbon fibres using atom probe tomography and photoelectron spectroscopy
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- Johansen, Marcus, 1994 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Schlueter, Christoph (author)
- Deutsches Elektronen-Synchrotron (DESY)
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- Tam, Eric, 1980 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- (creator_code:org_t)
- Elsevier BV, 2021
- 2021
- English.
- In: Carbon. - : Elsevier BV. - 0008-6223. ; 179, s. 20-27
- Journal article (peer-reviewed)
Abstract
Subject headings
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- Carbon fibres show great potential as multifunctional negative electrode for novel structural battery composites – a rechargeable electrochemical cell with structural function. The electrochemical performance of carbon materials can be enhanced with nitrogen heteroatoms, which conveniently are inherent in polyacrylonitrile (PAN)-based carbon fibres. However, it is not fully understood how the electrochemical performance is governed by microstructure and composition of the carbon fibres, particularly the distribution and chemical states of nitrogen heteroatoms. Here we reveal the atom-by-atom three-dimensional spatial distribution and the chemical states of nitrogen in three PAN-carbon fibre types (M60J, T800 and IMS65), using atom probe tomography (APT) and synchrotron hard X-ray photoelectron spectroscopy (HAXPES), and correlate the results to electrochemical performance. The findings pave the way for future tailoring of carbon fibre microstructure for multifunctional applications.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Pappers-, massa- och fiberteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Paper, Pulp and Fiber Technology (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Annan materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Other Materials Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Kompositmaterial och -teknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Composite Science and Engineering (hsv//eng)
Keyword
- Hard X-ray photoelectron spectroscopy
- Multifunctional
- Electrochemical
- Carbon fibres
- Atom probe tomography
- Synchrotron
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- art (subject category)
- ref (subject category)
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