用Pt装饰的NiMo/碳混合催化剂用于高电流密度的演变:协同电子调制和工业应用潜力
Peng Qiu1, Yuan Chen2,3, Na He2,3
1School of Automotive Studies, Tongji University, 4800 Cao'an Road, Shanghai, 201804, China.
Chemistry (Weinheim an der Bergstrasse, Germany)
|April 29, 2025
概括
碳 (Pt-NiMo/C) 上的一种新的装饰的-催化剂提供了高效的化演化反应 (HER),用于可持续的生产. 这种耐用的催化剂在水电解等工业应用中表现出卓越的性能.
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
- 催化剂是一种催化剂.
背景情况:
- 越来越多的人对可持续气生产的需求.
- 在工业高电流密度条件下需要高效的催化剂.
- 对于性演化反应 (HER) 的当前催化剂的限制.
研究的目的:
- 开发一种经Pt装饰的基于NiMo的碳支持催化剂 (Pt-NiMo/C).
- 在工业条件下实现高效的性HER性能.
- 评估催化剂的稳定性和能量转化潜力.
主要方法:
- 通过溶剂蒸发和高温热解合成.
- 电化学评估包括超电位和稳定性测试.
- 膜电极组件 (MEA) 配置的制造和测试.
主要成果:
- 超低超电位在10 mA cm-2时为20 mV,在100 mA cm-2时为170 mV.
- 超过商业Pt/C基准的表现.
- 在100 mA cm-2.2下,在120小时内证明了强大的稳定性.
- 在100 mA cm-2下稳定的MEA性能,电池电压为1.53 V.
结论:
- Pt-NiMo/C 呈现出异常的 HER 活性和耐久性.
- 层次结构和协同电子相互作用有助于性能.
- 具有通过水电解进行经济高效的大规模绿色生产的潜力.
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