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The effect of cross...
The effect of crosslinking on ion transport in nanocellulose-based membranes
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- Yang, Hongli (author)
- Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten
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- Edberg, Jesper, 1988- (author)
- RISE,Smart hårdvara,RISE Res Inst Sweden, Bio & Organ Elect, Bredgatan 33, S-60221 Norrköping, Sweden.
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- Gueskine, Viktor (author)
- Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten
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- Vagin, Mikhail (author)
- Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten
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- Say, Mehmet Girayhan (author)
- Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten
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- Erlandsson, Johan (author)
- KTH,Fiberteknologi,KTH Royal Institute of Technology, Sweden,KTH Royal Inst Technol, Sweden
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- Wågberg, Lars, 1956- (author)
- KTH,Fiberteknologi,Wallenberg Wood Science Center,KTH Royal Institute of Technology, Sweden,KTH Royal Inst Technol, Sweden; KTH Royal Inst Technol, Sweden
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- Engquist, Isak (author)
- Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten
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- Berggren, Magnus (author)
- Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten
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(creator_code:org_t)
- Elsevier Ltd, 2021
- 2021
- English.
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In: Carbohydrate Polymers. - : Elsevier Ltd. - 0144-8617 .- 1879-1344.
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Abstract
Subject headings
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- Ion selective membranes are at the heart of energy conversion and harvesting, water treatment, and biotechnologies. The currently available membranes are mostly based on expensive and non-biodegradable polymers. Here, we report a cation-selective and low-cost membrane prepared from renewable nanocellulose and 1,2,3,4-butanetetracarboxylic acid which simultaneously serves as crosslinker and source of anionic surface groups. Charge density and structure of the membranes are studied. By using different degrees of crosslinking, simultaneous control over both the nanochannel structure and surface charge concentration is achieved, which in turn determines the resulting ion transport properties. Increasing negative charge concentration via higher crosslinker content, the obtained ion conductivity reaches up to 8 mS/cm (0.1 M KCl). Optimal ion selectivity, also influenced by the solution pH, is achieved at 20 wt% crosslinker addition (with ion conductivity of 1.6 mS/cm). As regular ~1.4 nm nanochannels were formed at this composition, nanofluidic contribution to ion transport is likely. © 2021 The Authors
Subject headings
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Keyword
- Crosslinking
- Ion conductivity
- Ion selectivity
- Membrane
- Nanocellulose
- Chlorine compounds
- Energy conversion
- Ion selective membranes
- Surface charge
- Charge concentration
- Crosslinker
- Harvesting waters
- Ion conductivities
- Ion-selective membrane
- Ion-transport
- Low-costs
- Nano-cellulose
- Non-biodegradable polymers
- Ions
Publication and Content Type
- ref (subject category)
- art (subject category)
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To the university's database
- By the author/editor
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Yang, Hongli
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Edberg, Jesper, ...
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Gueskine, Viktor
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Vagin, Mikhail
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Say, Mehmet Gira ...
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Erlandsson, Joha ...
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show more...
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Wågberg, Lars, 1 ...
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Engquist, Isak
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Berggren, Magnus
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show less...
- About the subject
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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 ...
- Articles in the publication
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Carbohydrate Pol ...
- By the university
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RISE
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Royal Institute of Technology
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Linköping University