可长度调节的Pd2Sn@Pt核心外纳米棒用于增强的乙醇电氧化,同时生产气
Tong Li1, Qiuxia Wang1, Wenjie Zhang1
1Institute for Energy Research, School of Chemistry and Chemical Engineering, Jiangsu University Zhenjiang 212013 China wangyong@ujs.edu.cn jliu@ujs.edu.cn.
Chemical science
|September 15, 2023
概括
开发新的-锡核心外纳米棒 (Pd2Sn@Pt) 提供了通过乙醇电氧化生产的低成本,高效的途径. 这些催化剂表现出增强的活性和稳定性,为综合能源系统铺平了道路.
科学领域:
- 电化学 电化学 电化学
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
背景情况:
- 乙醇电氧化是一种有希望的替代氧气进化生产.
- 为乙醇氧化开发高效稳定的电催化剂至关重要,但具有挑战性.
研究的目的:
- 开发一种用于合成可调节长度的Pd2Sn@Pt核心外纳米棒的合体过程.
- 为了评估这些纳米棒的电催化性能,以氧化乙醇.
- 研究它们在混合电解系统中的应用,用于同时生产乙酸和.
主要方法:
- Pd2Sn@Pt核心外纳米棒的合合成.
- 乙醇电氧化催化剂的电化学表征.
- 混合电解系统的建造和测试.
- 密度函数理论 (DFT) 的计算.
主要成果:
- 与Pd2Sn和商业Pt/C相比,Pd2Sn@Pt纳米棒表现出更高的活性和稳定性.
- 短Pd2Sn@Pt纳米棒实现了高质量活动 (4.75 A mgPd+Pt-1) 和特异性活动 (20.14 mA cm-2).
- 一个混合系统在0.59 V和10 mA cm−2.2.的同时产生酸和气.
结论:
- 开发的Pd2Sn@Pt纳米棒是乙醇氧化的高效电催化剂.
- 调整 nanorod 长度并使用紧张的 Pt 可以提高催化性能.
- 这种方法为集成和有价值的化学品生产提供了一个可行的策略.
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