Designing plant-based functional materials towards carbon- negative applications Jaana Vapaavuori , Fangxin Zou, Hamidreza Daghigh Shirazi, Yazan al Haj, Yujiao Dong, Marike Langhans, Maija Vaara, Mithila Mohan, Jose Moya Cucharero, Tapio Lokki Aalto University, Finland Recent developments towards resource-wise societies and use of renewable materials have created a strong incentive to utilize biomass-derived materials as an alternative to oil-based polymers. These materials combine large volumes, low cost, and a range of unique functional properties depending on the composition of the starting biomaterial. 1 As examples of their implementation to emerging applications, supercapacitors 2 and self-cleaning light-management layers 3 for third generation photovoltaics will be discussed. At the other end of application range, at established high-volume applications, we will showcase how biowaste can be converted into carbon- negative sound absorption and insulation materials. 4,5 For all these applications, it is imperative to understand the structure-property relationship between the starting material, fabrication process and the final - often multifunctional - structures. In principle, all of these materials can be produced with circular economy approaches by using agricultural and industrial biowaste bringing attractive environmental and economic benefits. References 1. J. Grondahl et al.,Soft Matter, 17 (43), 9842-9858 (2021) 2. al Haj et al.,Chemical Engineering Journal 435, 135058 (2022) 3. Daghigh Shirazi et al., submitted, (2023) 4. Benito Gonzalez et al.,Advanced Sustainable Systems 6 (11), 2200248 (2022) 5. Zou et al.,Chemical Engineering Journal 462, 142236 (2023)
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