通过等离子体促进的非对称氧气合来进行Ir/Mn联合混合和氧化物支持相互作用调节,以实现稳定的酸性氧的进化
Kefeng Zhou1, Yongjie Wang2,3, Zhongqing Jiang4
1Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, Guangdong Engineering and Technology Research Center for Surface Chemistry of Energy Materials, College of Environment and Energy, South China University of Technology, Guangzhou, 510006, P. R. China.
Advanced materials (Deerfield Beach, Fla.)
|March 24, 2025
概括
为氧化演化反应 (OER) 开发高效的基催化剂至关重要. 本研究介绍了Ir/Mn混合和等离子体缺陷工程,以创建稳定的OPM催化剂,增强酸性OER的活性.
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:
- 通过氧化物路径机制 (OPM) 开发高效和稳定的氧化物进化反应 (OER) 催化剂对于电化学应用至关重要.
- 对OPM催化剂的严格结构要求在催化剂设计中带来了重大挑战.
研究的目的:
- 开发高效和稳定的基于的催化剂,通过酸性OER的OPM运行.
- 通过Ir/Mn混合和强氧化物支持相互作用 (SOSI) 调制来优化催化剂结构.
主要方法:
- 采用了一种通过等离子体缺陷工程结合Ir/Mn联合混合和SOSI调制的策略.
- 使用密度功能理论 (DFT) 计算来研究电子合和反应路径.
- 在电化学水电解中制造并测试了基于Ir的催化剂.
主要成果:
- 达到了240mV的超电位,驱动10mA cm-2.2.
- 证明了超过75倍的Ir质活性比IrO2.
- 在质子交换膜水电解器中,在工业电流密度为1.0 A cm-2时表现出高性能和出色的稳定性.
结论:
- 开发的基于Ir的催化剂有效地遵循酸性OER的OPM途径.
- /混合和SOSI调制是提高催化剂性能和稳定性的关键.
- 该战略为设计用于水分的先进电催化剂提供了一个有前途的途径.
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