基于微流体的SiO2纳米流体的可持续合成,来自煤气化精细渣,用于先进的热管理
Zihan Ding1, Junsheng Hou1, Baiqi Tian2
1School of Chemical Engineering and Technology, Xi'an Jiaotong University, 28 Xianning West Road, Xi'an, Shaanxi 710049, P.R. China.
Langmuir : the ACS journal of surfaces and colloids
|January 29, 2026
概括
这项研究使用煤气化精细渣来制造稳定的二氧化纳米流体. 这些纳米流体显著提高了芯片冷却应用的热传递,提供了可持续的材料回收解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 纳米技术纳米技术
背景情况:
- 煤气化渣 (CGS) 的利用对于可持续的煤炭化学工业发展至关重要.
- 从CGS合成高价值的功能材料,如二氧化 (SiO2) 纳米流体,具有挑战.
- 需要有效和经济的CGS价值化方法.
研究的目的:
- 开发SiO2纳米流体的连续生产方法,使用煤气化细渣 (CGFS) 作为经济的来源.
- 为了评估这些SiO2纳米流体在高功率芯片冷却中的传热性能.
- 调查热传递增强的潜在机制.
主要方法:
- 使用3D打印的螺旋微反应器,从激活和脱的CGFS中连续生产SiO2纳米流体.
- 描述SiO2纳米流体的粒子尺寸和合稳定性.
- 系统地评估芯片冷却中纳米流体的沸热传递性能.
- 进行泡可视化和表面分析,以了解传热增强机制.
主要成果:
- 微反应器成功地产生了SiO2纳米流体,具有均的颗粒大小和出色的合稳定性.
- 与去离子水相比,0.01%重量的SiO2纳米流体显示出显著的热传递增强,将临界热流 (CHF) 增加了49.52%,热传递系数 (HTC) 增加了34.00%.
- 纳米流体通过增加核化部位,增强墙壁的湿透性和减少泡凝聚,改善了热传递.
结论:
- 这项研究通过连续的SiO2纳米流体生产为CGFS的高价值利用建立了新的,具有成本效益的途径.
- 开发的SiO2纳米流体为苛刻的冷却应用提供了卓越的传热性能.
- 该研究提供了从工业废物中开发先进的冷却液体的理论见解和技术基础.
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