超薄的Ceo2纳米板组件用于持久的氧气进化:氧气空隙工程引发deprotonation
Kunkun Nie1, Yanling Yuan1, Xiaoyan Qu2
1Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE), Xi'an Institute of Biomedical Materials and Engineering, Northwestern Polytechnical University, Xi'an 710129, China.
Journal of colloid and interface science
|November 21, 2023
概括
氧化物 (CeO2) 纳米片的化物 (CeO2) 纳米片与等异原子形成氧气空缺,显著提高了用于清洁能源应用的氧气演化反应 (OER) 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:
- 金属氧化物中的氧空位 (OV) 增强了催化活性.
- 氧化 (CeO2) 是电催化的一个有前途的材料.
研究的目的:
- 为了提高CeO2.2的氧化演化反应 (OER) 性能.
- 调查异构原子兴奋剂 (Fe,Co,Ni) 对CeO2 OER活性的影响.
主要方法:
- 2D CeO2纳米板组件 (NSA) 的合成.
- 用Fe,Co和Ni对CeO2NSA进行异原子兴奋剂.
- 形态和电子结构的表征.
- 对OER进行电催化测试.
- 密度函数理论 (DFT) 的计算.
主要成果:
- 形成了具有约1.7 nm厚度的自组装的2D CeO2 NSA.
- 在CeO2.2中,异构原子的结合有效地产生了OV.
- 联合剂的CeO2 NSAs表现出优越的OER活性和耐久性.
- DFT计算证实OVs可以增强OH-吸附和脱质.
结论:
- 异原子兴奋剂是一种可行的策略,通过OV生成来提高CeO2OER性能.
- 联合化CeO2 NSA显示出水分和燃料电池技术的巨大潜力.
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