From Waste to Aerogel: Upcycling of Post-Consumer Aluminum Beer Cans into Alumina-Based Aerogels with Improved Electrochemical Storage Performance
Carregando...
Fontes externas
Fontes externas
Data
Orientador
Coorientador
Pós-graduação
Curso de graduação
Título da Revista
ISSN da Revista
Título de Volume
Editor
American Chemical Society (ACS)
Tipo
Artigo
Direito de acesso
Acesso aberto
Fontes externas
Fontes externas
Resumo
In this study, we report a facile, template-free, and sustainable upcycling route for the synthesis of alumina-based aerogels from post-consumer aluminum beer can waste. The developed route employs different parts of aluminum beer cans to yield phase-pure γ-AlOOH and γ-Al2O3 aerogels with high surface area, mesoporosity, a fine microstructure of interconnected nanoflakes/nanofibers, and good thermal stability, displaying properties that are comparable, or even superior to, those of control samples prepared from high-purity AlCl3. Notably, we demonstrate that incorporation of impurities from the can alloy composition, particularly Mn, influences the optical, structural, and electrochemical behavior of prepared alumina-based aerogels, leading to a significantly improved energy storage performance in comparison to aerogels prepared with high-purity precursors. These findings establish a circular-economy-based approach to upcycle aluminum packaging waste into advanced, nanostructured aerogel materials with promising applications in energy storage, catalysis, thermal insulation, adsorption, sensing, and optical devices.
