一种新型的 ((ii) 乙酸复合物,含有丁连接体:对于氧气演化反应的有前途的电催化剂
Deepika Tanwar1,2, Priya Jain3, Deepali Ahluwalia4
1Catalysis and Bioinorganic Research Lab, Department of Chemistry, Deshbandhu College, University of Delhi New Delhi-110019 India ukumar@db.du.ac.in.
RSC advances
|August 17, 2023
概括
研究人员开发了一种新型的酸复合物与丁连接物作为氧化演化反应 (OER) 的经济有效的电催化剂. 与氧化相比,这种土壤丰富的催化剂表现出优越的性能,为清洁能源应用提供了一个有前途的替代方案.
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:
- 从地球上丰富的金属中开发具有成本效益的电催化剂对于替代昂贵的贵金属催化剂至关重要.
- 战略重点是过渡金属复合物,具有可调节的电子密度和协调灵活性,以增强催化活性.
研究的目的:
- 报告一种新型的lutidine-coordinated cobalt(II) 乙酸复合物,[(3,5-lutidine) 2Co(OAc) 2(H2O) 2 (1),作为氧化演化反应 (OER) 的潜在电催化剂.
- 调查影响复合物的催化活动的结构和电子特性.
主要方法:
- 使用FT-IR,元素分析和单晶X射线衍射合成和表征复合物.
- 密度函数理论 (DFT) 计算用于结构优化和分子静电潜力 (MEP) 映射.
- 氧化演化反应 (OER) 活动的电化学评估.
主要成果:
- 合成的复合物[3,5-lutidine]2Co(OAc) 2(H2O) 2 (1) 在结构上得到了特征,DFT计算证实了它的几何.
- 欧洲议会的分析揭示了富含电子的中心,表明由于卢提丁的易斯基协调和酸盐的灵活性,催化潜力增强.
- 综合体1表现出令人印象深刻的OER活动,以更高的周转频率 (0.05) 和更低的开始潜力 (1.50V与RHE) 优于基准IrO2催化剂.
结论:
- 卢提丁协调的 ((II) 乙酸复合物作为OER的高效和成本效益的电催化剂.
- 配合丁和酸盐的连接体设计提供了必要的协调灵活性和电子特性,以提高催化性能.
- 这种土壤丰富的催化剂是OER应用中贵金属催化剂的可行替代品.
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