稳定RhPdH 2D双纳米板用于高效的性进化
Jinchang Fan1, Jiandong Wu1, Xiaoqiang Cui1
1State Key Laboratory of Automotive Simulation and Control, Department of Materials Science, Key Laboratory of Automobile Materials of MOE , Jilin University , Changchun 130012 , China.
Journal of the American Chemical Society
|February 6, 2020
概括
研究人员使用二甲化物开发了一种新型催化剂,用于高效的性演变反应 (HER). 这一突破提供了高活性和稳定性,解决了催化剂的关键挑战.
科学领域:
- 材料科学
- 电化学
- 催化剂
背景情况:
- 设计有效和稳定的进化反应 (HER) 催化剂是一个重大挑战.
- 金属元素的不稳定组合往往限制了催化剂的性能.
研究的目的:
- 开发一种高活性和稳定的进化反应 (HER) 催化剂
- 探索使用受限异质原子的双金属催化剂的新合成机制.
主要方法:
- 使用甲作为源的二维甲化物合成.
- 密度函数理论 (DFT) 的计算,以了解限和合金稳定性.
- 电化学测试以评估催化活性和稳定性.
主要成果:
- 一种新型的RhPd二甲化催化剂被合成,由受限原子稳定.
- 催化剂表现出优异的性HER性能,超电位低 (40 mV在10 mA cm-2).
- 在100 mA cm-2下观察到超过10小时的异常稳定性.
结论:
- 封闭的原子显著增强了HER的催化活性.
- 这种超薄的板状形态有助于催化剂的显著稳定性.
- 这项工作提供了设计高性能催化剂的新策略,通过将异原子纳入双金属结构.
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