侵入性外来植物生物质衍生硬碳阳极用于离子电池
Huanyu Wei1, Hongkuan Cheng1, Nan Yao1
1Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, PR China.
Chemosphere
|September 22, 2023
概括
像Spartina alterniflora这样的侵入性植物可以被转化为用于离子电池的硬碳阳极材料. 这项研究证明了它们在高效的储能应用中的潜力.
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
- 环境科学 环境科学
背景情况:
- 侵入性植物物种带来了重大的生态和经济挑战.
- 需要有效的管理策略,包括资源利用.
- 离子电池需要先进的阳极材料来提高性能.
研究的目的:
- 从入侵性植物生物质开发可持续的离子电池的阳极材料.
- 研究生物质衍生碳的结构和电化学特性.
- 评估入侵植物作为储能材料来源的潜力.
主要方法:
- 在高温下碳化Spartina alterniflora,Solidago canadensis和Erigeron canadensis的植物.
- 生物质衍生碳的清洁和激活.
- 使用SEM,TEM,XRD,XPS,拉曼光谱和BET进行表征.
- 将电池组装成充满电池的离子电池,用于电化学测试.
主要成果:
- 来自生物质的碳具有显著的孔状结构,具有扩大的层间距 (约. 0.37纳米) 的时间.
- 这三种材料都表现出良好的速率能力和出色的循环性.
- 在50 mA的100个循环后,可逆容量达到245.3,207.19和227.12 mAh/g.
- 从Spartina alterniflora衍生的碳显示出优越的长期稳定性,在1000个循环后保持141.63 mAh/g在200 mA.
结论:
- 侵入性植物生物质是高性能离子电池阳极材料的可行前体.
- 开发的材料为入侵物种管理和能源储存提供了可持续的解决方案.
- 来自Spartina alterniflora的碳对先进的离子电池应用具有特殊的潜力.
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