基于MOF的固态质子导体,通过将蛋白离子液体聚合物与MIL-101交织在一起而获得.
Shunlin Zhang1,2, Yuxin Xie1, Rosie J Somerville2
1College of Chemical Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, 211816, China.
Small (Weinheim an der Bergstrasse, Germany)
|June 15, 2023
概括
研究人员使用金属有机框架 (MOF) MIL-101和蛋白离子液体聚合物 (PILP) 开发了新的固态质子导体. 含有HSO4-离子的PILP@MIL-101复合物表现出极好的质子导电性,为燃料电池提供了一个有前途的替代品.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 纳米技术纳米技术
背景情况:
- 对质子交换膜的金属有机框架 (MOF) 进行了探索.
- 当前的质子导体在性能和稳定性方面面临限制.
- 开发先进的固态质子导体对于能源技术至关重要.
研究的目的:
- 合成和描述基于MIL-101和前离子液态聚合物 (PILP) 的新型质子导体.
- 研究新复合材料中的质子传输特性和机制.
- 评估这些材料作为现有质子交换膜的替代品的潜力.
主要方法:
- 在MIL-101 MOF结构中,在现场聚合原体离子液 (PIL) 单体.
- 合成PILP@MIL-101复合材料与不同的离子.
- 使用电化学阻抗光谱学对质子导电性的表征.
- 通过单晶X射线衍射对PIL单体的结构分析.
主要成果:
- PILP@MIL-101复合材料保留了MIL-101的结构完整性和水稳定性.
- 含有HSO4-离子的复合物在85°C和98%的相对湿度下显示出6.3 × 10^-2 S cm^-1的超质子导电性.
- 在PIL单体中观察到强烈的键相互作用,促进质子运输.
结论:
- PILP@MIL-101复合材料代表了一种新型高效的固态质子导体.
- 增强的质子传输归因于MOF结构内的交织在一起的PILP.
- 这些材料在燃料电池和其他电化学设备中的应用方面显示出显著的前景.
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