Laser Upcycling of Hemoglobin Protein Biowaste into Engineered Graphene Aerogel Architectures for 3D Supercapacitors.

Autor: Hayashi S; Princeton Materials Institute, Princeton University, Princeton, NJ, 08540, USA.; Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, NJ, 08540, USA., Rupp M; Princeton Materials Institute, Princeton University, Princeton, NJ, 08540, USA.; Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, NJ, 08540, USA., Liu JX; Princeton Materials Institute, Princeton University, Princeton, NJ, 08540, USA.; Department of Chemical and Biological Engineering, Princeton University, Princeton, NJ, 08540, USA., Stiles JW; Princeton Materials Institute, Princeton University, Princeton, NJ, 08540, USA.; Department of Chemistry, Princeton University, Princeton, NJ 08540, USA., Das A; Princeton Materials Institute, Princeton University, Princeton, NJ, 08540, USA.; Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, NJ, 08540, USA., Sanchirico A; Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, NJ, 08540, USA., Moore S; Department of Chemical and Biological Engineering, Princeton University, Princeton, NJ, 08540, USA., Arnold CB; Princeton Materials Institute, Princeton University, Princeton, NJ, 08540, USA.; Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, NJ, 08540, USA.
Jazyk: angličtina
Zdroj: Advanced science (Weinheim, Baden-Wurttemberg, Germany) [Adv Sci (Weinh)] 2024 Dec 31, pp. e2412588. Date of Electronic Publication: 2024 Dec 31.
DOI: 10.1002/advs.202412588
Abstrakt: Graphene aerogels (GAs) with engineered architectures are a promising material for applications ranging from filtration to energy storage/conversion. However, current preparation approaches involve the combination of multiple intrinsically-different methodologies to achieve graphene-synthesis and architecture-engineering, complicating the entire procedure. Here, a novel approach to prepare GAs with engineered architectures based on the laser-upcycling of protein biowaste, hemoglobin, is introduced. Laser scanning achieves graphene-synthesis concurrently with architecture-engineering through the localized graphitization of hemoglobin along the laser-scan path, enabling the direct preparation of engineered GAs. The laser-upcycled GAs are uniquely decorated with fibrous graphitic structures, which significantly improves the surface area. Such structural formation is attributable to the inherent iron content of hemoglobin which leads to the formation of iron-based nanoparticles that catalyze the formation of nano-structured graphene. By leveraging the high electrical conductivity and unique structural morphology, the laser-upcycled GAs are applied as electrodes of symmetrical 3D supercapacitors. The fabricated supercapacitors exhibited a high specific capacitance (≈54.9 F g -1 ) and excellent cycle stability (≈94% retention), attributable to the laser-engineered architecture facilitating ion diffusion even for thick electrodes. Not only does this study provide a novel approach to prepare GAs with engineered architectures but showcases the potential of laser-upcycling in preparing advanced functional materials for future devices.
(© 2024 The Author(s). Advanced Science published by Wiley‐VCH GmbH.)
Databáze: MEDLINE
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