三维石墨烯板-碳面热电复合材料与微接口用于能源应用
Vamsi Krishna Reddy Kondapalli1, Oluwasegun Isaac Akinboye1, Yu Zhang1
1Department of Mechanical and Materials Engineering, University of Cincinnati, Cincinnati 45221, Ohio United States.
ACS applied materials & interfaces
|March 4, 2024
概括
研究人员使用冷制造开发了一种新的3D石墨烯板 (3DGS) 和碳面 (CV) 复合材料. 这种灵活,稳定的材料对热电发电和温度监测应用具有前景.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
- 收集能源 收集能源
背景情况:
- 三维石墨烯 (3DG) 复合材料为高级应用提供可调节的性能.
- 目前3DG复合材料的合成方法多样化,目前正在研究优化其性能和制造.
研究的目的:
- 开发一种用于制造3D石墨烯板 (3DGS) 和碳面 (CV) 复合材料 (3DGS-CV) 的新方法.
- 描述新的3DGS-CV复合材料的结构,电气和热电性能.
- 展示3DGS-CV复合材料在热电发电和温度监测中的潜在应用.
主要方法:
- 通过化学蒸汽沉积 (CVD) 合成3D石墨烯板 (3DGS).
- 3DGS-CV复合材料的制造,通过使用冷将3DGS与商业碳面 (CV) 连接在一起.
- 包括SEM,拉曼映射,XRD,电阻,拉伸强度和Seebeck系数测量的全面表征.
主要成果:
- 冷使3DGS在CV孔中挤出更容易,从而创建了微接口.
- 挤出的3D石墨烯保持了它原始的特性,由不变的拉曼2D峰和Seebeck系数证明.
- 使用p型3DGS和n型CV电偶的平面内热电器件实现了32.5μVK-1的Seebeck系数.
- 3DGS-CV复合材料在高相对湿度下表现出极好的稳定性,与许多其他热电材料不同.
- 复合材料表现出一个薄而灵活的轮,具有良好的湿度和热稳定性,适合可扩展的制造.
结论:
- 开发的冷技术为生产具有理想性质的3DGS-CV复合材料提供了一个可扩展的方法.
- 3DGS-CV复合材料由于其调节性质和稳定性,显示出热电发电的巨大潜力.
- 该材料的灵活性,稳定性和易于制造使其适用于实用应用,例如离子电池中的温度监测和大面积温度绘图.
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