可持续回收使用过的离子电池中的基于Co3O4的催化剂,用于优先CO氧化
Fen Liu1, Wenxia Zhou1, Xiuxing Cai1
1College of Chemistry and Materials, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Nanchang 330045, China.
Journal of colloid and interface science
|April 22, 2025
概括
回收退役的离子电池产生了Co3O4催化剂,用于优先的CO氧化. 支持的CuO/Co3O4催化剂显示出增强的低温活性,在160°C达到完全的CO转化.
科学领域:
- 材料科学 材料科学 材料科学
- 催化剂是一种催化剂.
- 环境化学环境化学
背景情况:
- 退役的离子电池 (LIB) 带来了环境挑战,需要有效的材料回收.
- 从LIB中回收的氧化物 (Co3O4) 可以作为优先CO氧化 (CO-PROX) 的催化剂.
- 提高CO-PROX的低温催化活性对于实际应用至关重要.
研究的目的:
- 开发用于CO-PROX的增强催化剂,使用LIBs的回收材料.
- 研究支持的CuO/Co3O4催化剂的催化机制和活性位点.
- 展示LIB回收和催化剂开发的可持续战略.
主要方法:
- 从回收的电池材料中合成支持的CuO/Co3O4催化剂.
- 对CO-PROX的催化性能评估,确定100%CO转换 (T100%) 的温度.
- 使用DFT和in-situ DRIFTS等技术进行表征,以阐明反应机制和活性部位.
主要成果:
- 支持的CuO/Co3O4催化剂在160°C实现了彻底的CO转化.
- 鉴定结果显示,CuO/Co3O4.4中的高晶格氧含量和强烈的金属支相互作用.
- 在现场,DRIFTS证实了增强的CO转化和CO2选择性,并抑制了激活.
结论:
- 从LIBs中回收的Co3O4,在CuO的支持下,形成CO-PROX的高度活性催化剂.
- 增强的性能归因于晶格氧和金属支相互作用,促进了CO吸附.
- 这项工作为LIB回收提供了一种可持续的方法,并为CO氧化提供先进的催化剂设计.
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