活性在以为基础的室温液体金属中用于增强还原反应的活性
Nichayanan Manyuan1, Hideya Kawasaki1
1Department of Chemistry and Materials Engineering, Kansai University 3-3-35, Yamate-cho, Suita Osaka 564-8680 Japan hkawa@kansai-u.ac.jp.
RSC advances
|October 18, 2023
概括
喷液体金属 (LMs) 提供了增强的催化活性. 这种新的方法提高了的利用率和还原反应的催化性能,优于传统的黑装载.
科学领域:
- 材料科学 材料科学 材料科学
- 催化剂是一种催化剂.
- 纳米技术 纳米技术
背景情况:
- 基于的液态金属 (LMs) 由于其独特的特性,在催化中表现有前途.
- 提高催化性能需要高效的 (Pt) 装载方法LMs.
- 目前用于LM的Pt加载技术需要提高催化性能和Pt利用率.
研究的目的:
- 开发一种使用喷雾沉积制造嵌液体金属 (Pt(dep) -LMs) 的新方法.
- 在模型反应中研究Pt(dep) -LMs的催化活性.
- 为了比较Pt(dep) -LMs与常规装载LM和固体的性能.
主要方法:
- 通过喷沉积制造Pt结合的LMs (Pt(dep) -LMs).
- 对Pt深度LMs的表征,注意分散的Pt片 (0.89 ± 0.6μm).
- 在酸性水溶液中使用乙烯蓝还原和生产来评估催化活性.
主要成果:
- 与传统Pt黑装载的LM相比,Pt深度LMs的催化活性在甲基蓝还原和生成方面显著更高 (三倍),比传统Pt黑装载的LM更高 (∼0.7 wt%).
- 具有类似 Pt 负载的固体没有显示催化活性.
- 在Pt-dep-LMs中观察到Pt激活,其流体性质增强了催化还原.
结论:
- 喷射沉积是制造Pt结合LM的优质方法,提高了催化性能和Pt利用效率.
- 液态性质的LMS,与激活的Pt相结合,显著增强了催化还原反应.
- 通过喷制造的基于Pt-LM的催化剂比传统方法具有显著的优势.
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