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Redox Equilibria: Overview

Redox Equilibria: Overview

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...

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Updated: Jan 8, 2026

Bulk and Thin Film Synthesis of Compositionally Variant Entropy-stabilized Oxides

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Published on: May 29, 2018

在交替CO₂回氧循环过程中构建拓学上有序的高度无形氧化物,以进行适应性补偿.

Yuchun Liu¹, Tianqi Liu¹, Zhixin Sun¹

¹Hefei National Research Center for Physical Sciences at the Microscale, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China.

Angewandte Chemie (International ed. in English)

|December 22, 2025

概括

具有拓性障碍工程的高形氧化物防止了电化学应用中的材料疲劳. 这种方法通过在压力下实现自我适应补偿来提高耐用性和性能.

关键词:

适应性补偿是一种适应性补偿.耐疲劳的材料可以耐疲劳.高的无形氧化物具有高性.二氧化碳电池的电池是二氧化碳电池.拓学乱是一种拓学乱.

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Last Updated: Jan 8, 2026

Bulk and Thin Film Synthesis of Compositionally Variant Entropy-stabilized Oxides

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Published on: May 29, 2018

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Published on: July 1, 2013

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
纳米技术纳米技术

背景情况:

由于结构变化的材料疲劳会降低电化学设备的性能.
保持活跃现场耐用性是电化学系统的一个关键挑战.
拓障碍工程为增强结构稳定性和反应动力学提供了一条途径.

研究的目的:

引入高形氧化物 (HEAO) 作为拓障碍工程的模型系统.
研究HEAO中用于减轻电化学疲劳的自我适应机制.
为了证明HEAO在提高电化学性能和耐用性方面的有效性.

主要方法:

高形氧化物 (HEAO) 的合成.
动态金属-氧协调网络和电子相互作用 (d-d电子转移,d-p轨道合) 的表征.
二氧化碳电池的电化学测试,包括循环性能和能效测量.

主要成果:

高高层的高层物体表现出内在的自我适应的拓学障碍,具有异常的结构松.
灵活的M-O-M连接和多元件集成引发电子相互作用,以进行电荷再分配.
在二氧化碳电池中,HEAO实现了超高的放电电压 (3.14V),并在长期循环中保持了90%的能源效率.

结论:

在HEAO中拓障碍工程提供了远程完整性,并抑制了电化学疲劳.
在HEAO中,自适应补偿源于响应的拓学上无序的金属-氧多面体,减轻了应变积累.
远程拓适应性是耐疲劳电化学材料的关键设计原则.