一种简单的方法,将制的橄废物转化为硫碳,用于离子电池电极
Alejandro Medina1, Ricardo Alcántara1, Pedro Lavela1
1IQUEMA., Department of Inorganic Chemistry, University of Cordoba, Campus Universitario de Rabanales. Edificio C3, primera planta., 14071, Córdoba, Spain.
ChemSusChem
|June 28, 2024
概括
橄石废弃物被转化为用于离子电池的先进碳电极材料. 硫酸处理通过产生硫和适当的多孔性来提高性能,提高容量.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 可持续化学 可持续化学
背景情况:
- 橄石废料是全球丰富的生物质资源.
- 目前橄石废弃物的应用主要局限于燃料生产.
- 先进的储能材料可以从可持续的生物质来源获得.
研究的目的:
- 开发一种低成本的方法,从橄石废物中制造无序的碳材料.
- 为了优化碳材料用于离子电池中的电极.
- 研究硫酸处理对碳特性和电化学性能的影响.
主要方法:
- 橄石废弃物用硫酸处理,然后碳化.
- 使用XRD,XRF,XPS,电子显微镜和气体吸附 (N2和CO2) 进行了构成,微观结构和纹理的表征.
- 在离子电池应用中评估了电化学性能.
主要成果:
- 处理有效地去除了杂质,形成了C-S键,并产生了微孔.
- 硫酸充当了硫补剂,二氧化碳吸附揭示了适合容纳的潜在毛孔.
- 在硫酸处理后,碳电极的可逆容量从大约200 mAh/g增加到250 mAh/g.
- 电化学性能的提高归因于硫注射和透度的提高.
结论:
- 从橄石废弃物中制造先进的离子电池电极材料的新型,具有成本效益的方法.
- 硫酸处理对于创建硫化碳具有优化的多孔性以增强储存至关重要.
- 这种方法提供了一种可持续的途径,用于将生物质废弃物价值化为高性能储能材料.
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