在Ni2P中协同F/MoCodoping用于尿素氧化中的微环境工程:路径调节和选择性增强
Xingzhuo Han1, Peng Wu1, Yibo Wang1
1Key Laboratory of Medical Molecule Science and Pharmaceutical Engineering, Ministry of Industry and Information Technology, MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China.
ACS applied materials & interfaces
|February 3, 2026
概括
一种新的F/Mo编的Ni基催化剂 (F-MoNiP) 增强了尿素氧化反应 (UOR) 以有效生产. 这种催化剂降低了过量的潜力,提高了选择性,提供了可持续的能源替代品.
科学领域:
- 电化学 电化学 电化学
- 材料科学 材料科学 材料科学
- 催化剂是一种催化剂.
背景情况:
- 尿素氧化反应 (UOR) 为能源应用提供了一种热力学上有利的替代氧化演化反应 (OER).
- 现有的基UOR催化剂受到高Ni3+氧化潜力和低选择性限制,阻碍了它们的实际实施.
研究的目的:
- 开发一种先进的基催化剂,提高尿素氧化反应 (UOR) 的活性和选择性.
- 研究 (F) 和 (Mo) 配合对化 (NiP) 纳米管的催化性能产生的协同效应.
主要方法:
- 合成一种无形的,F/Mo编的以纳米管结构 (F-MoNiP) 的Ni基催化剂.
- 电化学表征以评估UOR的催化活性和选择性.
- 分析反应途径和中间物种,以了解催化机制.
主要成果:
- F/Mo的配合染策略在较低的超潜力下促进了活跃NiOOH物种的形成,大大提高了UOR活动.
- 催化剂通过首选的碳酸盐路径促进了尿素分解,并通过最小化氧吸附来抑制竞争的氧化演化反应.
- 在用尿素辅助的水电解中,F-MoNiP在1.395 V的电池电压下达到10 mA cm-2的电流密度.
结论:
- 开发的F-MoNiP催化剂在尿素氧化方面表现出卓越的性能,为生产提供了高效和可持续的途径.
- 协同的F/Mo编码有效地优化了基于的催化剂用于电化学能量转换,解决了先前材料的局限性.
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