相关实验视频
Updated: Jan 15, 2026

10:00
Hydrogen Production and Utilization in a Membrane Reactor
Published on: March 10, 2023
3.1K
重建的单立体RuNi异构结构使性海水在工业电流密度下从性海水中产生气
Hao Luo1, Tao Zhou1, Ruiqin Xia1
1Department of Chemistry, The University of Hong Kong, Hong Kong, SAR, P. R. China.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|October 6, 2025
概括
一种新的氧化 (RuNiO) 电催化剂显示出用于工业生产的高活性和耐用性. 这种催化剂在性海水中有效运作,显示出大规模电解的有希望的战略.
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:
- 工业气生产需要具有高活性,耐用性和海水耐受性的电催化剂.
- 现有的电催化剂在恶劣的性环境中经常面临局限性.
研究的目的:
- 开发和描述一种新的单质RuNiOx电催化剂,用于高效的海水电解.
- 在工业条件下调查催化剂的运行稳定性和活性位形成.
主要方法:
- 在Ni泡上直接生长RuNiOx.
- 在性海水中在各种电流密度和温度下进行电化学测试.
- 现场光谱和计算分析以阐明活性部位.
主要成果:
- 与Pt/C相比,RuNiOx催化剂重建成Ru/NiO异构,表现出高于Pt/C的质量活性 (0.47 A mg-1 Ru)
- 证明了显著的耐用性 (>350小时在1 A cm-2) 和在性海水中稳定运行100小时.
- 确定了RuO2在坚固的Ru/NiO接口上以金属Ru的动态降解为活性部位.
结论:
- 从RuNiOx形成的Ru/NiO异构结构对通过海水电解进行工业规模的生产非常有效.
- 开发的催化剂为在具有挑战性的环境中可持续产生的可行解决方案.
- 这项工作提出了一种战略方法,用于设计用于水分裂的强大和高效的电催化剂.
相关概念视频
Reduction of Alkenes: Asymmetric Catalytic Hydrogenation
3.8K
Catalytic hydrogenation of alkenes is a transition-metal catalyzed reduction of the double bond using molecular hydrogen to give alkanes. The mode of hydrogen addition follows syn stereochemistry.
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...
3.8K
Reduction of Alkenes: Catalytic Hydrogenation
13.9K
Alkenes undergo reduction by the addition of molecular hydrogen to give alkanes. Because the process generally occurs in the presence of a transition-metal catalyst, the reaction is called catalytic hydrogenation.
Metals like palladium, platinum, and nickel are commonly used in their solid forms — fine powder on an inert surface. As these catalysts remain insoluble in the reaction mixture, they are referred to as heterogeneous catalysts.
The hydrogenation process takes place on the...
Metals like palladium, platinum, and nickel are commonly used in their solid forms — fine powder on an inert surface. As these catalysts remain insoluble in the reaction mixture, they are referred to as heterogeneous catalysts.
The hydrogenation process takes place on the...
13.9K

