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Circular lignin materials from well-defined functional building blocks

Project description

Turning waste lignin into valuable products

Lignin is a naturally occurring material which gives trees structural support and helps them build resistance to biochemical degradation. The forest industry currently burns the majority of lignin in their energy and chemical recovery processes. Funded by the European Research Council, the CIRCULIG project aims to use lignin as a building block for materials that can be recycled, thereby extending the life cycle of forest products. Researchers will investigate new synthesis and assembly approaches to overcome obstacles to lignin use, focusing on improving solvent stability and functionality of lignin nanoparticles, and generating lignin fibres incorporating inorganic and metal nanoparticles. CIRCULIG will open new frontiers for sustainable lignin-based materials that can be recycled, which combine functionality and design.

Objective

Lignin is a natures wonder material that allows trees to grow vertically and have strong and biochemically resistant structures. However, the majority of lignin is burned in the forest industry. The objective is to make a paradigm shift in the use of lignin by developing circular lignin materials with functionalities arising from well-defined nanostructures. This project faces two outstanding challenges. The first relates to overcoming the instability of lignin nanoparticles in organic solvents and under alkaline conditions, which currently restricts synthesis of advanced lignin materials. The second is to develop lignin nanoparticles and lignin fibres structurally incorporating inorganic and metal nanoparticles. By overcoming these obstacles, we will have functional lignin building blocks for circular vitrimer adhesives, electrochemical catalysts, magnetically responsive nanocomposite gels, and colloidal crystals. Synthesis and assembly of these materials requires considerable contributions to method development that will open wholly new frontiers for sustainable lignin materials. Far-reaching implications beyond materials science include excellent opportunities for interdisciplinary studies across environmental sciences, chemical and process engineering, and life sciences.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-ERC - HORIZON ERC Grants

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Call for proposal

(opens in new window) ERC-2022-STG

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Host institution

STOCKHOLMS UNIVERSITET
Net EU contribution
€ 1 500 000,00
Address
UNIVERSITETSVAGEN 10
10691 Stockholm
Sweden
Region
Östra Sverige Stockholm Stockholms län
Activity type
Higher or Secondary Education Establishments
Links
Total cost
€ 1 500 000,00

Beneficiaries (1)