在化中对残留辅助氧化路径进行调节,以增强氧气演化反应的作用
1Department of Chemical Engineering, Changwon National University, Changwon, 51140, Republic of Korea.
概括
在色化物 (CoSex) 中的残留增强了氧演化反应 (OER) 催化. 即使在浸后,保留的也会稳定活性氧化物,提高催化性能.
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:
- 的化物 (CoSex) 被研究为氧化演化反应 (OER) 的潜在催化剂.
- (Se) 在催化过程和材料转化中的确切作用尚未完全理解.
研究的目的:
- 研究性OER期间化化的电化学转化.
- 确定残留如何影响催化活性和材料特性.
主要方法:
- 在OER条件下对化的电化学表征.
- 在电解前后分析材料组成和结构,观察的分布和的氧化状态.
主要成果:
- 表面主要在OER期间被出,但在地下和散装区域保留了大量的.
- 剩余的有助于形成和稳定高氧化物种 (Co3+,Co4+).
- 通过β-CoOOH影响到CoO2的氧化途径,导致与无Se样本相比增加了OER活性.
结论:
- 在OER过程中,残留在化电催化剂中起到至关重要的调节作用.
- 了解的作用为设计先进的过渡金属化物催化剂提供了洞察力.
相关概念视频
Oxidation of Alkenes: Syn Dihydroxylation with Potassium Permanganate
16.3K
Alkenes can be dihydroxylated using potassium permanganate. The method encompasses the reaction of an alkene with a cold, dilute solution of potassium permanganate under basic conditions to form a cis-diol along with a brown precipitate of manganese dioxide.
16.3K
Oxidation of Alkenes: Syn Dihydroxylation with Osmium Tetraoxide
12.5K
Alkenes are converted to 1,2-diols or glycols through a process called dihydroxylation. It involves the addition of two hydroxyl groups across the double bond with two different stereochemical approaches, namely anti and syn. Dihydroxylation using osmium tetroxide progresses with syn stereochemistry.
12.5K
Oxidation-Reduction Reactions
74.9K
Oxidation–Reduction Reactions
74.9K
Redox Reactions
862
Redox reactions are vital biochemical processes that underpin energy metabolism in cells. These reactions involve the transfer of electrons between molecules, occurring in tandem as oxidation and reduction. Oxidation refers to the loss of electrons, while reduction denotes their gain. This coupling ensures the seamless flow of electrons through metabolic pathways. For example, in bacterial metabolism, glucose undergoes oxidation to carbon dioxide, while oxygen is simultaneously reduced to...
862
Redox Reactions
58.2K
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...
58.2K
Redox Equilibria: Overview
1.5K
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...
1.5K


