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Elucidating the Bul...
Elucidating the Bulk Morphology of Cellulose-Based Conducting Aerogels with X-Ray Microtomography
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- Oikonomou, Vasileios (author)
- Linköpings universitet,Linköping University,Laboratoriet för organisk elektronik,Tekniska fakulteten,Wallenberg Wood Science Center
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- Dreier, Till (author)
- Lund University,Lunds universitet,Medicinsk strålningsfysik, Lund,Sektion V,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,LTH profilområde: Teknik för hälsa,LTH profilområden,Lunds Tekniska Högskola,Medical Radiation Physics, Lund,Section V,Department of Clinical Sciences, Lund,Faculty of Medicine,LTH Profile Area: Engineering Health,LTH Profile areas,Faculty of Engineering, LTH,Lund Univ, Sweden; Excillum AB, Sweden
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- Sandéhn, Alexandra (author)
- Linköpings universitet,Linköping University,Laboratoriet för organisk elektronik,Tekniska fakulteten,Wallenberg Wood Science Center
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- Mohammadi, Mohsen (author)
- Linköpings universitet,Linköping University,Laboratoriet för organisk elektronik,Tekniska fakulteten,Wallenberg Wood Science Center
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- Christensen, Jakob Lønborg (author)
- Technical University of Denmark,Tech Univ Denmark, Denmark
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- Tybrandt, Klas (author)
- Linköpings universitet,Linköping University,Laboratoriet för organisk elektronik,Tekniska fakulteten,Wallenberg Wood Science Center
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- Dahl, Anders Bjorholm (author)
- Technical University of Denmark,Tech Univ Denmark, Denmark
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- Dahl, Vedrana Andersen (author)
- Technical University of Denmark,Tech Univ Denmark, Denmark
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- Bech, Martin (author)
- Lund University,Lunds universitet,Medicinsk strålningsfysik, Lund,Sektion V,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,X-ray Phase Contrast,Forskargrupper vid Lunds universitet,LTH profilområde: Teknik för hälsa,LTH profilområden,Lunds Tekniska Högskola,Medical Radiation Physics, Lund,Section V,Department of Clinical Sciences, Lund,Faculty of Medicine,Lund University Research Groups,LTH Profile Area: Engineering Health,LTH Profile areas,Faculty of Engineering, LTH,Lund Univ, Sweden
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- Stavrinidou, Eleni (author)
- Linköpings universitet,Umeå University,Linköping University,Laboratoriet för organisk elektronik,Tekniska fakulteten,Swedish Univ Agr Sci, Sweden,Wallenberg Wood Science Center
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(creator_code:org_t)
- WILEY, 2023
- 2023
- English.
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In: Advanced Materials Technologies. - : WILEY. - 2365-709X. ; 8:23
- Related links:
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http://dx.doi.org/10... (free)
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https://doi.org/10.1...
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https://liu.diva-por... (primary) (Raw object)
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Subject headings
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- Conducting cellulose composites are promising sustainable functional materials that have found application in energy devices, sensing and water purification. Herein, conducting aerogels are fabricated based on nanofibrillated cellulose and poly(3,4-ethylenedioxythiophene) polystyrene sulfonate, using the ice templating technique, and their bulk morphology is characterized with X-ray microtomography. The freezing method (−20 °C in a freezer vs liquid nitrogen) does not impact the mean porosity of the aerogels but the liquid-N2 aerogels have smaller pores. The integration of carbon fibers as addressing electrodes prior to freezing results in increased mean porosity and pore size in the liquid-N2 aerogels signifying that the carbon fibers alter the morphology of the aerogels when the freezing is fast. Spatially resolved porosity and pore size distributions also reveal that the liquid-N2 aerogels are more inhomogeneous. Independent of the freezing method, the aerogels have similar electrochemical properties. For aerogels without carbon fibers, freezer-aerogels have higher compression modulus and are less stable under cycling compression fatigue test. This can be explained by higher porosity with larger pores in the center of liquid-N2 aerogels and thinner pore walls. This work demonstrates that micro-CT is a powerful tool for characterizing the morphology of aerogels in a non-destructive and spatially resolved manner.
Subject headings
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Keyword
- aerogels
- cellulose
- poly(3,4-ethylenedioxythiophene)
- X-ray microtomography
- aerogels; cellulose; poly(3
Publication and Content Type
- art (subject category)
- ref (subject category)
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Oikonomou, Vasil ...
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Dreier, Till
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Sandéhn, Alexand ...
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Mohammadi, Mohse ...
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Christensen, Jak ...
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Tybrandt, Klas
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Dahl, Anders Bjo ...
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Dahl, Vedrana An ...
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Bech, Martin
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Stavrinidou, Ele ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Materials Chemis ...
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Lund University
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Linköping University