贝叶斯的优化环境可持续的石墨烯墨水通过湿喷气削生产的贝叶斯优化
Lindsay E Chaney1, Anton van Beek2,3, Julia R Downing1
1Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA.
Small (Weinheim an der Bergstrasse, Germany)
|March 26, 2024
概括
本研究介绍了一种环保的方法,使用乙醇湿喷压来生产石墨烯,实现导电性油墨的高产量,并显示出与传统溶剂相比具有显著的环境效益.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
- 绿色化学 绿色化学
背景情况:
- 液相脱皮 (LPE) 是可扩展的石墨烯生产的关键.
- 潮喷磨 (WJM) 提供连续流式石墨烯脱皮.
- 以前的WJM方法依赖于像NMP这样的有毒溶剂.
研究的目的:
- 为石墨烯开发一个环保的WJM工艺.
- 为了优化WJM参数来实现高石墨烯产量,转换和导电性.
- 评估以乙醇为基础的 WJM 的可持续性.
主要方法:
- 使用乙醇和乙烯基纤维素 (EC) 的湿喷气削 (WJM).
- 采用贝叶斯优化和代批量采样来探索实验参数.
- 进行生命周期评估 (LCA) 来评估环境影响.
主要成果:
- 在乙醇中含有15%重量级石墨的最佳WJM条件被确定.
- 实现了高的石墨烯生产率 (3.2 g/hr).
- 石墨烯纳米板块的适用性已被证明用于丝网打印的微型超级电容器.
结论:
- 基于乙醇的WJM提供了优越的石墨烯生产率和环境优势.
- 这种方法为导电石墨烯油墨提供了一个可持续的途径.
- 优化的WJM条件与基于NMP的流程有很大的不同.
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