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Modelling of conductive polymer-redox polymer supercapacitors

The Laboratory of Organic Electronics is developing cellulose base conductive polymer-redox polymer supercapacitors for large scale energy storage. This project focus on the modelling of such systems by coupling a recently developed theoretical model for organic mixed electronic-ionic conductors with the redox chemistry of wood-based redox polymer for energy storage applications. The aim is to […]

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Methodologies providing new insights into the fundamentals of the pulping process

Today’s knowledge of what happens concerning the kinetics and other phenomena in the digester during the pulping process is mainly the result of the use of inductive methods. Based on these methods, generalised models have been formulated that are applied for process development as well as for industrial process optimisation.  Recent studies (e.g., Mattsson et

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Resource-efficient and non-toxic material flows from wood waste

With increasing focus on recycling, wood waste can increase its potential to generate secondary raw materials instead of incineration and landfilling. The quality of wood waste, as determined by the presence of material and mainly chemical impurities, is essential to ensure a high quality, clean and safe recycling loop for particleboards or for other emerging

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Förhorning av träfibrer

Projektet går ut på att genom experimentella studier bygga upp en kunskap kring förhorning av komponenterna i träfibrer. Förhorning är ett fenomen där, i nuläget praktiskt sett irreversibla, processer i samband med torkning förändrar fibrernas svällning och flexibilitet och därmed bindningsförmåga. Bindningsförmågan till andra fibrer har stor inverkan på hur starka fibernätverk kan skapas och

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Structure-properties relationship of covalently crosslinked cellulose networks

In this work, the structure-property relationship of covalently crosslinked cellulose networks is studied by utilizing   surface modified cellulose nanofibrils and polymer links of defined structure and molecular weight. The effect of  molecular weight, chemical functionality and concentration on specific surface area, swelling, and mechanical properties of the hydrogel networks will be investigated.

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Bio-sourced, oven-dried and wet-stable foams based on cellulose and amyloid nanofibrils

In the recent decades, foams have been extensively used for different applications such as: packaging, thermal and acoustic insulation, energy storage, and water purification. However, fabrication of foams from renewable resources through green methods with scale-up potential is challenging. In this context, cellulose nanofibrils (CNFs) as the most abundant bio-derived nanofibrils with outstanding physical properties

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Structure-property relationships in lignin-based porous carbon materials for water purification

Good water quality is essential to human health, social and economic development, as well as the ecosystem. Industrialization and urbanization, together with the explosive population growth, have caused a great challenge for maintaining safe and clean water resources. Among many strategic and research activities for water protection, a direct approach is to develop biobased porous

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Defibrillation of cellulosic substrates by novel bio-based ionic liquids 

New bio-based ionic liquids were developed as a greener and simple pathway for the activation of cellulosic substrates compatible with chemical modification (such as in situ polymerization). Preliminary experiments showed that these ionic liquids promote swelling/dispersing/defibrillation/partial dissolution of cellulose while retaining cellulose I crystalline structure after regeneration (full dissolution is not achieved). To get a

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Upgrading recycled thermoplastics using cellulose oxalate for a more sustainable future 

The absolute majority of plastic used today are fossil-based thermoplastics such as polypropylene and polyethylene. To an extent these plastics are recycled through mechanical recycling but the recycled plastic is mainly used for low-end, low quality products. This is due to decreased mechanical properties and due to that the recycled plastic often obtains a black

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Om Treesearch

Treesearch har som syfte att skapa en nationell plattform för att stödja forskning. Forskningsprojekt som bedrivs inom Treesearch forskningsområden och de forskare som är aktiva i dessa projekt är välkomna att ansluta till plattformen.

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