共同回收利用的离子电池和塑料成为微波吸收材料,使用Ni-Co催化剂控制
Baolong Qiu1,2, Yuanzhao Hou1, Zhan Shi3
1Key Laboratory for Ecological Metallurgy of Multimetallic Mineral of Ministry of Education, School of Metallurgy, Northeastern University, Shenyang, PR China.
Nature communications
|February 16, 2026
概括
这项研究将废弃塑料和离子电池 (LIB) 共同循环转化为先进的碳纳米管 (CNT) 复合材料. 这种新的方法创造了有效的微波吸收器,同时解决了催化剂中毒和粒子增长的挑战.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
- 环境科学 环境科学
背景情况:
- 共同回收废塑料和使用过的离子电池 (LIB) 成为有价值的材料,如碳纳米管 (CNT),这是一个有前途的方法.
- 挑战包括碳沉积导致的金属催化剂中毒以及合成过程中无法控制的颗粒生长.
研究的目的:
- 为转化使用过的NCM LIB和二元塑料 (PET和其他) 变成NiCoMnOx/CNTs复合材料制定一个共同回收利用策略.
- 从废物流中创建有效的微波吸收材料.
主要方法:
- 使用过的NCM LIB和塑料 (PET) 的热解以产生NiCoMnOx/CNTs复合材料.
- 利用NCM中的Li2CO3来抑制NiCo颗粒的生长,并将PET作为蚀刻剂和碳源.
- 在800°C的温度下进行热处理,以优化材料性能.
主要成果:
- 成功合成了控制NiCo颗粒大小 (<100 nm) 的NiCoMnOx/CNTs复合材料.
- 实现了33%的碳转化率,防止了催化剂中毒.
- 由此产生的材料证明了有效的微波吸收,有效吸收带宽 (EAB) 为7.01GHz在2.41mm.
- 生命周期分析 (LCA) 显示了显著的环境效益.
结论:
- 聚乙烯二甲 (PET) 作为生产 (NixCoγ) MnO/CNTs微波吸收材料的关键推动剂.
- 该战略提供了一个可持续的解决方案,用于将消耗的LIB和塑料废物再循环转化为高价值的功能材料.
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