基于Te的二元原子催化剂上的*CO电子结构和吸附配置的电化学潜力驱动的演变,以增强CO2减少2
Yiming Yang1, Xiaolong Li1, Chengwei Yang1
1College of Sciences/State Key Laboratory of Advanced Energy Storage Materials and Technology, Shihezi University, Shihezi, Xinjiang, 832003, China. geguixian@126.com.
基于的新型催化剂显示出减少二氧化碳的前景. 潜在影响电子结构和CO2RR性能,指导未来的电催化剂开发.
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
- 计算化学计算化学
背景情况:
- 二氧化碳减排反应 (CO2RR) 对可持续能源至关重要.
- 新型α- (α-Te) 具有出色的稳定性和电子性质.
- 二原子催化剂为CO2RR提供可调节的活性位点.
研究的目的:
- 为了选二原子催化剂 (M1M2@Te) 有效的CO2RR.
- 为了研究电极电位对催化剂性能的影响.
- 为开发高效的电催化剂提供理论指导.
主要方法:
- 密度函数理论 (DFT) 的计算.
- 选了21个二原子过渡金属催化剂 (M1M2@Te).
- 在不同电位下对限制电位 (UL) 和CO吸附的分析.
主要成果:
- 确定了CoNi@Te,FeNi@Te和FeCu@Te作为具有非常有前途的CO2RR催化剂,UL值为-0.64V,-0.77V和-0.21V.
- 证明了电催化性能的显著潜在依赖.
- 由于*CO吸附变化,观察到FeCu@Te在 -0.4 V 的限制步骤的变化.
结论:
- 电极电位有效调整二原子催化剂的电子结构和*CO吸附强度.
- 在现实条件下理解催化剂活动的关键是潜在响应性行为.
- 铁二原子电催化剂为高效的CO2RR提供了一个有希望的理论基础.
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