过渡金属协调聚合物在NiFe层状双氧化物上实现了稳定的海水氧化
Li Yao1, Jianying Yang2,3, Zixiao Li4
1Key Laboratory of Magnetic Molecules and Magnetic Information Materials (Ministry of Education), School of Chemistry and Material Science, Shanxi Normal University, Taiyuan, Shanxi 030031, China.
Inorganic chemistry
|January 28, 2025
概括
这项研究引入了用于海水电解的新型催化剂,克服了腐蚀问题. NiFe LDH@NiFe-PANI/NF催化剂能够在高电流密度下稳定生产气,为可持续能源铺平了道路.
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
- 可持续能源 可持续能源
背景情况:
- 海水电解是能源的关键,但面临副产品的阳极腐蚀.
- 过渡金属协调聚合物显示出作为抗腐蚀的电催化剂,用于性海水氧化 (ASO).
研究的目的:
- 开发一种高效且耐的电催化剂,用于性海水氧化.
- 通过使用新型催化剂,在工业级电流密度下证明稳定的气生成.
主要方法:
- 在Ni泡上支持的NiFe层状双氧化物上合成NiFe-聚氨酸的阳极氧化-电沉积策略 (NiFe LDH@NiFe-PANI/NF).
- 对于耐腐蚀性而言NiFe-PANI的协同集成,对于化离子排斥而言molybdate.
主要成果:
- 在性海水中,NiFe LDH@NiFe-PANI/NF在1000 mA cm−2下实现了稳定的ASO,其超电位为380 mV.
- 催化剂在1000 mA cm-2.2下连续运行了500小时.
- 使用催化剂的离子交换膜电解器在300 mA cm-2下稳定运行了120小时,电压为2.16V.
结论:
- 开发的NiFe LDH@NiFe-PANI/NF催化剂为ASO提供了出色的耐腐蚀性和高效率.
- 这种催化剂显示出通过海水电解进行可扩展和可持续的能能源生产的巨大潜力.
更多相关视频
05:47Preparation of Polyoxometalate-based Photo-responsive Membranes for the Photo-activation of Manganese Oxide Catalysts
Published on: August 7, 2018
7.6K
09:34Synthesis and Characterization of Fe-doped Aluminosilicate Nanotubes with Enhanced Electron Conductive Properties
Published on: November 15, 2016
9.2K
相关概念视频
02:58Properties of Transition Metals
25.0K
Transition metals are defined as those elements that have partially filled d orbitals. As shown in Figure 1, the d-block elements in groups 3–12 are transition elements. The f-block elements, also called inner transition metals (the lanthanides and actinides), also meet this criterion because the d orbital is partially occupied before the f orbitals.
25.0K
02:51Metal-Ligand Bonds
20.5K
The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes.
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
20.5K
01:09Complexation Equilibria: Factors Influencing Stability of Complexes
321
In complexation reactions, metal cations are the electron pair acceptors, and the ligands are the electron pair donors. The stability of the metal complexes depends primarily on the complexing ability of the central metal ion and the nature of the ligands. Generally, the complexing ability of the metal ion depends on the size and charge of the ion. As the metal ion size increases, the stability of the metal complexes decreases, provided that the valency of the metal ion and the ligands remain...
321