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Rapidly Prepared Nanocellulose Hybrids as Gas Barrier, Flame Retardant, and Energy Storage Materials
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- Görür, Yunus Can (author)
- KTH,Fiberteknologi
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- Francon, Hugo (author)
- KTH,Fiber- och polymerteknologi
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- Sethi, Jatin (author)
- KTH,Fiberteknologi
- show more...
- Maddalena, L. (author)
- Carosio, F. (author)
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- (creator_code:org_t)
- 2022-06-21
- 2022
- English.
- In: ACS Applied Nano Materials. - : American Chemical Society (ACS). - 2574-0970. ; 5:7, s. 9188-9200
- Journal article (peer-reviewed)
Abstract
Subject headings
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- Cellulose nanofibril (CNF) hybrid materials show great promise as sustainable alternatives to oil-based plastics owing to their abundance and renewability. Nonetheless, despite the enormous success achieved in preparing CNF hybrids at the laboratory scale, feasible implementation of these materials remains a major challenge due to the time-consuming and energy-intensive extraction and processing of CNFs. Here, we describe a scalable materials processing platform for rapid preparation (<10 min) of homogeneously distributed functional CNF-gibbsite and CNF-graphite hybrids through a pH-responsive self-assembly mechanism, followed by their application in gas barrier, flame retardancy, and energy storage materials. Incorporation of 5 wt % gibbsite results in strong, transparent, and oxygen barrier CNF-gibbsite hybrid films in 9 min. Increasing the gibbsite content to 20 wt % affords them self-extinguishing properties, while further lowering their dewatering time to 5 min. The strategy described herein also allows for the preparation of freestanding CNF-graphite hybrids (90 wt % graphite) that match the energy storage performance (330 mA h/g at low cycling rates) and processing speed (3 min dewatering) of commercial graphite anodes. Furthermore, these ecofriendly electrodes can be fully recycled, reformed, and reused while maintaining their initial performance. Overall, this versatile concept combines a green outlook with high processing speed and material performance, paving the way toward scalable processing of advanced ecofriendly hybrid materials.
Subject headings
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Keyword
- CNF
- functional hybrids
- gibbsite
- green materials
- nanocomposites
- self-assembly
- Dewatering
- Energy storage
- Environmental protection
- Exfoliation (materials science)
- Film preparation
- Graphene oxide
- Graphite
- Nanocellulose
- Self assembly
- Storage (materials)
- Supercapacitor
- Cellulose nanofibrils
- Eco-friendly
- Energy storage materials
- Functional hybrid
- Gas barrier
- Gibbsites
- Hybrids material
- Nano-cellulose
- Processing speed
- Hybrid materials
- Energy
- Hybrids
- Materials
- Performance
- Processing
- Storage
- Water Removal
Publication and Content Type
- ref (subject category)
- art (subject category)
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- Royal Institute of Technology
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