在受控大气层中进行焦尔加热,以处理纳米碳/过渡金属氧化物复合材料和电极
Shegufta Upama1,2, Luis Arevalo2, Afshin Pendashteh2
1Department of Materials Science & Engineering, Texas A&M University, College Station, Texas 77843, United States.
概括
焦尔加热快速处理纳米碳金属氧化物复合材料. 气氛将热稳定性延长到1000°C,克服金属氧化物诱导的碳纳米管织物的降解.
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:
- 纳米碳-金属氧化物复合材料提供了结合的机械,电气和电容性质.
- 这些材料对储能,催化和传感应用具有前景.
研究的目的:
- 研究焦勒加热作为纳米碳金属氧化物复合材料的快速热处理方法.
- 为了确定金属氧化物对碳纳米管织物的热稳定性 (CNTf) 的影响.
- 为延长CNTf/金属氧化物复合材料的加工窗口.
主要方法:
- 使用的朱尔加热用于CNTf/金属氧化物复合材料 (和氧化物) 的炉外热处理.
- 采用了热重力测量分析和受控大气的朱尔加热实验.
- 研究了减少气氛的作用.
主要成果:
- 焦尔加热使得在CNTf中金属氧化物矩阵的快速结晶和精确温度控制成为可能.
- 观察到金属氧化物催化CNT降解,降低了热稳定性.
- 通过使用气氛,成功将加工温度延长到~1000°C.
结论:
- 焦尔加热是一种有效的快速加工技术,用于纳米碳金属氧化物复合材料.
- 减少气氛对于提高这些复合材料在高温加工过程中的热稳定性至关重要.
- 这种方法扩大了CNTf/金属氧化物复合材料在苛刻环境中的适用性.
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