Glucosamine derived hydrothermal carbon electrodes for aqueous electrolyte energy storage systems

Authors

BURCU ÜNAL
REZAN DEMİR ÇAKAN

DOI

10.3906/kim-2105-35

Abstract

Nitrogen-doped porous hard carbons are synthesized by hydrothermal carbonization method (HTC) using glucosamine as biosource and treated at different carbonization temperatures in nitrogen environment (500, 750, 1000 °C). The electrochemical performances of hard carbons electrode materials for aqueous electrolyte sodium ion batteries are examined to observe the effect of two different voltage ranges (-0.8-0.0) V and (0.0-0.8) V in 1.0 M Na2SO4 aqueous electrolyte. The best electrochemical performances are acquired for the 1000 °C treated glucosamine (GA-1000) porous carbon sample that provides ~96 F/g capacitance value in the negative voltage range (between -0.8 and 0.0) V. The sodium diffusion coefficient of the GA-1000 carbon calculated by electrochemical impedance measurements is found to be 1.5 × 10-14 cm2/s.

Keywords

Nitrogen-doped carbon, hydrothermal carbonization, aqueous electrolyte batteries, sodium-ion energy storage

First Page

1678

Last Page

1689

Recommended Citation

ÜNAL, BURCU and ÇAKAN, REZAN DEMİR (2021) "Glucosamine derived hydrothermal carbon electrodes for aqueous electrolyte energy storage systems," Turkish Journal of Chemistry: Vol. 45: No. 6, Article 2. https://doi.org/10.3906/kim-2105-35
Available at: https://journals.tubitak.gov.tr/chem/vol45/iss6/2