Fabricating carbon-based electrode materials via uptake of amino nano-polystyrene into Pistia stratiotes roots for enhancing supercapacitance

Abstract

By recycling nano plastics into new form of energy storage materials, the authors report a novel method including uptake by plant and high-temperature carbonization for the fields of both recycling pollution and fabricating advanced materials at the same time.

Utilizing Manganese Phase Transition in Bioabsorption Synthesis of MnO@Carbon Composites for Enhanced High-Performance Supercapacitors

“…The resulting composite material, consisting of biochar and molybdenum nitride, was employed as an electrode material for supercapacitors, exhibiting a specific capacity of 344 F·g –1 at a current density of 0.5 A·g –1 in a 2 M KOH electrolyte. Other studies have also investigated the application of the bioabsorption method using aquatic plants to absorb nanoplastics and to facilitate the bioabsorption of heavy metals and nanoplastics for the preparation of electrode materials. − However, existing literature fails to report the specific role of heavy metals in influencing the electrochemical properties during the bioabsorption method’s electrode material preparation, particularly the process of valence change of metal ions within living organisms. Moreover, during high-temperature pyrolysis, the absorption of different metals at varying temperatures leads to the formation of diverse crystal structures, hindering the accurate determination of the optimal crystal structure for efficient electrochemical energy storage.…”