对缺陷调节的电催化剂进行审查,以帮助氧气演化反应
Qianyun He1,2, Lei Han2, Chao Lin1,3
1School of New Energy, Ningbo University of Technology, Ningbo, 315336 China. linc@dhu.edu.cn.
Nanoscale
|June 14, 2024
概括
电催化剂的缺陷工程显著提高了水分裂和电池的氧演化反应 (OER). 本次审查强调了近期在缺陷丰富的材料中取得的进展,以提高OER活动和稳定性.
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:
- 氧进化反应 (OER) 对于水分和金属空气电池等能源应用至关重要.
- 提高OER电催化剂的活性和稳定性是关键的研究重点,缺陷工程成为一个强大的战略.
研究的目的:
- 在OER应用中审查富有缺陷的材料,以提高电化学性能.
- 在过去五年中,专注于OER电催化剂缺陷工程的进步.
- 为设计高性能OER电催化剂提供见解,这些电催化剂可以与贵金属系统竞争.
主要方法:
- 关于OER催化机制的概述.
- 分析缺陷类型,合成方法及其对电化学性能的影响.
- 专注于调节材料电子结构的缺陷工程策略.
主要成果:
- 缺陷工程允许精确的原子层控制电子结构,从而导致优越的OER电催化性能.
- 与传统的OER催化剂相比,富含缺陷的材料表现出增强的活性和稳定性.
- 最近的发展表明,在利用缺陷工程进行先进的电催化剂设计方面取得了重大进展.
结论:
- 缺陷工程是开发先进的OER电催化剂的高效策略.
- 合理设计和合成富有缺陷的材料对于提高效率和寿命至关重要.
- 基于缺陷工程的高性能OER电催化剂可以超过贵金属催化剂.
相关概念视频
Thermal and Photochemical Electrocyclic Reactions: Overview
2.3K
Electrocyclic reactions are reversible reactions. They involve an intramolecular cyclization or ring-opening of a conjugated polyene. Shown below are two examples of electrocyclic reactions. In the first reaction, the formation of the cyclic product is favored. In contrast, in the second reaction, ring-opening is favored due to the high ring strain associated with cyclobutene formation.
2.3K
Oxidation-Reduction Reactions
64.7K
Oxidation–Reduction Reactions
64.7K
Interfacial Electrochemical Methods: Overview
235
Interfacial electrochemical methods focus on the phenomena occurring at the boundary between an electrode and a solution, as opposed to bulk methods that concentrate on the solution's overall properties. These interfacial methods are classified as either static or dynamic based on the presence of a nonzero current in the electrochemical cell and the consistency of analyte concentrations. Static methods, such as potentiometry, measure the cell's potential without any significant current...
235
Redox Equilibria: Overview
560
A reduction-oxidation reaction is commonly called a redox reaction. In a redox reaction, electrons are transferred from one species to another rather than being shared between or among atoms. The reducing agent or reductant is the species that loses electrons and gets oxidized in the process. The species that gains electrons and gets reduced in the process is the oxidizing agent or oxidant. Redox reactions are represented as two separate equations called half-reactions, where one equation...
560
Redox Reactions
55.6K
Oxidation-reduction or redox reactions involve the transfer of electrons from one molecule or atom to another. When an atom gains an electron, another atom must lose an electron, meaning oxidation and reduction must occur together. Since the redox occurs in pairs, the atom that gets oxidized is also called the reducing agent or reductant, and the atom that is reduced is also called the oxidizing agent or oxidant. A straightforward way to remember the definitions of oxidation and reduction is...
55.6K
Phase I Oxidative Reactions: Overview
264
Phase I biotransformation, or functionalization, is a crucial chemical process that converts drugs and other xenobiotics into more water-soluble forms, facilitating expulsion from the body. It involves oxidative, reductive, and hydrolytic reactions that add or unveil polar functional groups on lipophilic substrates. Key players in phase I reactions are the mixed-function oxidases. Situated in liver cell microsomes, these enzymes predominantly carry out drug metabolism. They require molecular...
264


