立体石刻3D打印碳微晶格,具有层次的多孔性,用于结构和功能应用
Akira Kudo1, Kazuya Kanamaru2, Jiuhui Han1,3
1WPI Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai, 980-8577, Japan.
Small (Weinheim an der Bergstrasse, Germany)
|August 2, 2023
概括
层次性多孔碳微网格 (HPCMLs) 是3D打印的,用于储能. 这些强大的HPCML具有出色的机械性能和高容量,适用于厚型超级电容电极.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 电化学 电化学 电化学
背景情况:
- 开发具有可控孔径的先进碳材料对于高性能储能设备至关重要.
- 3D打印提供了对材料架构的精确控制,使新的微观结构成为可能.
- 层次性多孔材料结合了不同孔径的大小的特性,以增强功能.
研究的目的:
- 使用立体石版 (SLA) 3D打印制造等级多孔的碳微网格 (HPCMLs).
- 研究合成的HPCMLs的结构,机械和电化学特性.
- 评估HPCML作为超级电容器厚电极的潜力.
主要方法:
- 含有氧化纳米颗粒 (MgO NPs) 和石墨烯纳米片的复合光的制造.
- 立体石刻 (SLA) 3D打印,以创建简单的立方微网,设计有孔性的.
- 碳化在1000°C,其次是化学去除MgONP以创建层次性的多孔性.
- 机械测试 (压力强度,扬模量) 和电化学评估 (电容) 的HPCMLs.
主要成果:
- 成功合成了具有层级多孔性的HPCMLs (微型,中型和宏型).
- 达到 7.4510.45 MPa 的压力强度和 375736 MPa 的扬模量.
- 已证明高重力度容量为105 F g-1 (水性) 和13.8 F g-1 (有机),面积容量分别为>10 F cm-2和>1 F cm-2.
- 在热解后观察到较低的线性收缩 (33%).
结论:
- 使用复合光的SLA 3D打印是一种有效的生产HPCML的方法.
- 由此产生的HPCML具有出色的机械强度和层次性多孔性.
- 作为结构性能源存储应用的高性能厚电极,HPCML显示出显著的希望.
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