Posidonia Oceanica and Wood chips activated carbon as interesting materials for hydrogen storage. (18th May 2020)

• Record Type: Journal Article
• Authors: Pedicini, Rolando; Maisano, Susanna; Chiodo, Vitaliano; Conte, Giuseppe; Policicchio, Alfonso; Agostino, Raffaele G.
• Is Part Of: International journal of hydrogen energy. Volume 45:Number 27(2020)
• Page Start: 14038
• Page End: 14047
• Publication Date: 2020-05-18
• Subjects: Hydrogen storage -- Activated carbons -- Porous materials -- Posidonia oceanica -- Biochar; Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2020.03.130
• Languages: English
• ISSNs: 0360-3199

Abstract

Abstract: The goal is to investigate the feasibility to use a local biomass (Posidonia Oceanica and Wood chips), as a raw precursor, to the production of activated carbons (AC) with a high surface area and remarkable hydrogen (H2 ) adsorption properties. Biomasses (particle size of 0.3–0.4 mm) were pyrolyzed at 600 °C with a heating rate of 5 °C/min under an argon atmosphere. The biochar obtained from the carbonization step was chemically activated with KOH. The activation methodology induces a considerable improvement of the properties of the porous carbon in terms of carbon content (from 58 to 69 wt% to 93–96 wt%), surface area (from 41 to 425 m 2 /g to 2810–2835 m 2 /g) and H2 adsorption in cryogenic condition (from 0, 1 wt% to over 5 wt%). All porous carbons were characterized in terms of elemental analysis (CHNS–O), textural properties and H2 adsorption measurements. Graphical abstract: Image 1 Highlights: High Surface Activated Carbon for hydrogen physisorption. Fully reversible hydrogen storage. Simple, cheap and effective synthesis process. Suitable for static and automotive application.