Lignin-Based Polymer Electrolyte Membranes for Sustainable Aqueous Dye-Sensitized Solar Cells
| Autor: | Stefano Turri, J. C. De Haro, Gianmarco Griffini, Federico Bella, Matteo Bonomo, Elisavet Tatsi, Claudia Barolo, L. Fagiolari |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
General Chemical Engineering
lignin 02 engineering and technology Polyethylene glycol Electrolyte 010402 general chemistry aqueous solar cells biobased dye-sensitized solar cells lignocellulosic biomass membrane stability 01 natural sciences 7. Clean energy chemistry.chemical_compound Environmental Chemistry Lignin lignin membrane chemistry.chemical_classification Aqueous solution Renewable Energy Sustainability and the Environment technology industry and agriculture General Chemistry Polymer 021001 nanoscience & nanotechnology 0104 chemical sciences Dye-sensitized solar cell Membrane chemistry Chemical engineering 0210 nano-technology Ethylene glycol Research Article |
| Zdroj: | ACS Sustainable Chemistry & Engineering |
| Popis: | In the quest for sustainable materials for quasi-solid-state (QS) electrolytes in aqueous dye-sensitized solar cells (DSSCs), novel bioderived polymeric membranes were prepared in this work by reaction of preoxidized kraft lignin with poly(ethylene glycol)diglycidylether (PEGDGE). The effect of the PEGDGE/lignin relative proportions on the characteristics of the obtained membranes was thoroughly investigated, and clear structure–property correlations were highlighted. In particular, the glass transition temperature of the materials was found to decrease by increasing the amount of PEGDGE in the formulation, indicating that polyethylene glycol chains act as flexible segments that increase the molecular mobility of the three-dimensional polymeric network. Concurrently, their swelling ability in liquid electrolyte was found to increase with the concentration of PEGDGE, which was also shown to influence the ionic transport efficiency within the membrane. The incorporation of these lignin-based cross-linked systems as QS electrolyte frameworks in aqueous DSSCs allowed the preparation of devices with excellent long-term stability under UV–vis light, which were found to be superior to benchmark QS-DSSCs incorporating state-of-the-art carboxymethylcellulose membranes. This study provides the first demonstration of lignin-based QS electrolytes for stable aqueous DSSCs, establishing a straightforward strategy to exploit the potential of lignin as a functional polymer precursor for the field of sustainable photovoltaic devices. Lignin-based membranes were successfully prepared and employed as quasi-solid-state electrolytes in sustainable aqueous dye-sensitized solar cells. |
| Databáze: | OpenAIRE |
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