The conversion of spent lithium-ion batteries into valuable catalysts represents a critical innovation in addressing environmental challenges posed by volatile organic compounds (VOCs). The NiCoMnOx powder derived from these batteries, when combined with attapulgite (ATP) through a mechanochemical method, reveals a novel approach to recycling. The introduction of trace Mg2+ ions during the ball milling process induces lattice distortion, which creates oxygen vacancies and defects. This structural enhancement significantly boosts the catalyst's performance in toluene oxidation, a key reaction for VOC removal, thus addressing both waste management and air quality issues in the context of the burgeoning new energy sector.
The findings underscore the dual benefits of this recycling strategy: it not only recovers valuable metals from decommissioned batteries but also transforms them into efficient catalysts that can mitigate pollution. The optimized NiCoMnOx/ATP catalyst demonstrates remarkable efficacy, achieving 99% toluene conversion at 270 °C while maintaining stability over extended use. This research highlights the potential for a sustainable "waste-to-waste" paradigm, where the lifecycle of battery materials is extended through innovative applications, ultimately contributing to a circular economy in the energy sector.
