可解释的数据驱动描述器,以确定金属有机框架与氧气进化反应的结构活动关系
Jian Zhou1, Liangliang Xu2, Huiyu Gai3
1School of Materials Science and Engineering, Ocean University of China, Qingdao, 266100, China.
Angewandte Chemie (International ed. in English)
|June 12, 2024
概括
研究人员开发了金属有机框架 (MOF) 催化剂的新描述符,以改善氧演化反应 (OER). 这种由人工智能驱动的方法确定了用于卓越催化剂设计和性能的关键电子特性.
科学领域:
- 材料科学 材料科学 材料科学
- 催化剂是一种催化剂.
- 计算化学的计算化学
背景情况:
- 金属有机框架 (MOF) 催化剂的合理设计需要可访问和可解释的描述符.
- 氧化演化反应 (OER) 对能量转化至关重要,但催化剂的开发仍然具有挑战性.
研究的目的:
- 开发基于Ni-MOFs的OER催化剂的简单和物理可解读的活动描述符.
- 利用人工智能 (AI) 在分子轨道层面发现结构-活动关系.
主要方法:
- 在对二金属Ni基MOF的数据集采用AI子组发现 (SGD) 方法.
- 分析了电子属性,包括d频段中心,eg电子,Ni和替代物的电离能.
- 通过对11种基于Ni的MOF进行实验测试,验证了描述符.
主要成果:
- 确定了一个描述符,将Ni的d-band中心和eg电子与替代物电离能和eg电子相结合.
- 描述符有效地解释了MOF中OER催化物的结构-活性关系.
- 实验验证证证实了描述符在预测催化剂性能方面的准确性.
结论:
- 由人工智能驱动的描述器为选和设计高效的基于MOF的OER催化剂提供了强大的工具.
- 这种方法增强了对分子水平上催化机制的理解.
- 将计算选与实验验证相结合,用于加速材料发现.
相关概念视频
Properties of Organometallic Compounds
990
Organometallic compounds are compounds that contain a carbon–metal bond. Carbon belongs to an organyl group like alkyl, aryl, allyl, or benzyl groups. The metal can be from Group I or Group II of the periodic table, a transition metal, or a semimetal.
990
Metal-Ligand Bonds
20.7K
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...
20.7K
Oxidation and Reduction of Organic Molecules
6.4K
Energy production within a cell involves many coordinated chemical pathways. Most of these pathways are combinations of oxidation and reduction reactions, which occur at the same time. An oxidation reaction strips an electron from an atom in a compound, and the addition of this electron to another compound is a reduction reaction. Because oxidation and reduction usually occur together, these pairs of reactions are called redox reactions.
The removal of an electron from a molecule, results in a...
The removal of an electron from a molecule, results in a...
6.4K


