(49a) Biocarbon-Metal Sustainable Composites for Energy Storage

Theotime Béguerie^a, Amel Cydric Ghogia^a, Lina María Romero Millán^a, Majd El Saddik^a, Elsa Weiss^a, Claire E. White^b,c, Ange Nzihou^{a, c*}

1. Université de Toulouse, IMT Mines Albi, RAPSODEE CNRS UMR 5302, Campus Jarlard, F.81013 Albi Cedex 09, France
2. Princeton University, Department of Civil and Environmental Engineering, Princeton, NJ 08544, USA
3. Princeton University, Andlinger Center for Energy and the Environment, Princeton, NJ 08544, USA

*Corresponding author: Email addresses: ange.nzihou@mines-albi.fr, ange.nzihou@princeton.edu

Abstract:

This presentation will discuss the synthesis, characterization, and utilization of a novel family of lignocellulosic biocarbon-based composites for electrochemical and heat storage. The composites are produced by the pyrolysis and carbonization of biomass inherently containing or doped with catalytic metal such as Iron and Calcium at lower temperature (<1400°C) than the standard carbonization temperature (>1800°C). In this process, the biocarbon is transformed from a randomly organized carbon to a graphite-like material (organized and structured carbon) showing a high graphene rate structure. The Carbon structure change in the composites has been investigated from nano to bulk scales in combining XRD, HRTEM and RAMAN. This has enabled to probe changes in biochar nanostructure and crystalline graphitic domains catalyzed by the inclusion of metal such as Fe and Ca [1-3]. The encapsulation of iron particles by graphitic phase (graphene sheets) and the carbon-metal bonding during the pyrolysis and carbonization were uncovered using XPS [3]. Key properties for energy storage applications such as the remanent magnetization, the coercive field, the specific heat, the thermal and electric conductivities, the thermal stability including the mechanical properties will be discussed.

References:

• Romero Millán, Lina; Ghogia, Amel; White, Claire; Nzihou, Ange. "Iron Nanoparticles to Catalyze Graphitization of Cellulose For Energy Storage Applications". ACS Applied Nano Materials 6, n°5 (February 2023): 3549–3559. https://doi.org/10.1021/acsanm.2c05312
• Beguerie, Théotime; Weiss-Hortala, Elsa; Nzihou, Ange. "Calcium as an innovative and effective catalyst for the synthesis of graphene-like materials from cellulose." Scientific Reports (December 2022): 21492. https://doi.org/10.1038/s41598-022-25943-3.
• Ghogia, Amel C.; Romero Millán, Lina M.; White, Claire E.; Nzihou; Ange. “Synthesis and Growth of Green graphene from Biochar Revealed by Magnetic Properties of Iron Catalyst.” ChemSusChem (November 2022): 16. https://doi.org/1002/cssc.202201864.