一维 (II) 协调聚合物9-甲-4'-酸和双酸连接剂作为和氧进化反应的高效电催化剂
K Mohamed Yusuf Baig1, Sundaramoorthy Marimuthu1, Govindhan Maduraiveeran1,2,3
1Department of Chemistry, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603203, India. maduraig@srmist.edu.in.
Dalton transactions (Cambridge, England : 2003)
|June 30, 2025
概括
本研究介绍了基于的新型协调聚合物 (CPs) 作为水分裂的高效电催化剂. 这些负担得起的,地球上丰富的材料显示出对绿色生产的巨大希望.
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
- 绿色化学 绿色化学
背景情况:
- 从地球上丰富的过渡金属中开发稳定,高效和负担得起的电催化剂对于通过水分解生产绿色至关重要.
- 基于的材料是有希望的候选人,因为它们的催化性能和丰富.
研究的目的:
- 合成和描述基于的新型一维协调聚合物 (CPs).
- 评估这些CP的电催化性能,无论是演化反应 (HER) 还是氧演化反应 (OER).
主要方法:
- 三种基于Ni(II) 的CP的合成:[Ni(9-AnBz) 2 ((4,4'-bpy) 2 ((MeOH) 2) (CP 1),[Ni(9-AnBz) 2 ((4,4'-bpe) 2 ((MeOH) 2) (CP 2),以及[Ni(9-AnBz) 2 ((3,3'-bpdb) 2 ((H2O) 2) ·H2O (CP 3).
- 使用单晶X射线衍射进行结构性表征.
- 在1.0M KOH中对HER和OER进行电催化活性测试.
主要成果:
- 所有合成的基于Ni (II) 的CP都显示了对HER和OER的增强电催化活性.
- CP 1 呈现出极好的 HER 性能:低发病潜力 (~-0.04 V 与 RHE 相比),小的超电位 (~87 mV 在 -10 mA cm-2) 和高质量活性 (~50.0 A g-1),与商业 Pt / C. 相比.
- CP 1也显示出优异的OER活动,具有较低的超电位 (~370 mV在10 mA cm-2) 和较低的Tafel斜率 (~82 mV dec-1).
结论:
- 开发的基于Ni (II) 的CP是水分裂的高效电催化剂.
- CP 1显示了高效和负担得起的绿色生产系统的巨大潜力.
- 这些发现突显了协调聚合物的实用性,以促进可持续能源技术的发展.
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