Oxygen reduction reaction - Wikipedia
In chemistry, the oxygen reduction reaction refers to the reduction half reaction whereby O 2 is reduced to water or hydrogen peroxide. In fuel cells, the reduction to water is preferred because the current is higher.
Oxygen Reduction Reaction - an overview | ScienceDirect Topics
Oxygen reduction reaction (ORR) is a key process in which oxygen participates in energy conversion and storage, and its efficiency directly determines the overall performance of devices. [142] Oxygen diffuses through the gas diffusion layer (GDL) to the porous air cathode of fuel cells or metal–air batteries, and is reduced at the triple ...
Oxygen Evolution/Reduction Reaction Catalysts: From
2023年3月21日 · The oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) are core steps of various energy conversion and storage systems. However, their sluggish reaction kinetics, i.e., the demanding multielectron transfer processes, still render OER/ORR catalysts less efficient for practical applications.
Oxygen Reduction in Alkaline Media: From Mechanisms to …
2015年6月29日 · The oxygen reduction reaction (ORR) is an important electrode reaction for energy storage and conversion devices based on oxygen electrocatalysis. This paper introduces the thermodynamics, reaction kinetics, reaction mechanisms, and reaction pathways of ORR in aqueous alkaline media.
Selective oxygen reduction reaction: mechanism understanding, …
2024年6月27日 · The oxygen reduction reaction (ORR) is a key component for many clean energy technologies and other industrial processes. However, the low selectivity and the sluggish reaction kinetics of ORR catalysts have hampered the energy conversion efficiency and real application of these new technologies mentioned be 2024 Chemical Science Perspective ...
Mechanism of Oxygen Reduction Reaction | SpringerLink
2021年1月17日 · Oxygen reduction reaction is the basic reaction in electrochemical reaction. It is the cathode reaction of a series of electrochemical cells such as fuel cell, secondary lithium-air cell, metal-air cell, etc. It is also the main conjugate reaction occurring during the process of …
Oxygen Reduction by Homogeneous Molecular Catalysts and ...
2018年2月6日 · The oxygen reduction reaction (ORR) is a key component of biological processes and energy technologies. This Review provides a comprehensive report of soluble molecular catalysts and electrocatalysts for the ORR.
A review of oxygen reduction mechanisms for metal-free …
2019年7月19日 · The sluggish kinetics of Oxygen Reduction Reaction (ORR) at the cathode in proton exchange membrane fuel cells or metal-air batteries requires highly effective and stable electrocatalysts to...
Origins of enhanced oxygen reduction activity of transition metal ...
2024年9月3日 · The design and synthesis of electrocatalysts for the sluggish oxygen reduction reaction (ORR) is critical to advancing hydrogen fuel cells for transportation electrification 1.
Oxygen Reduction Reaction; Fuel Cells | SpringerLink
2024年4月25日 · The principles of the oxygen reduction reaction (ORR), including electrocatalysts and kinetics, are covered in this chapter. Based on the literature, both experimental and theoretical methods are used to explore the ORR kinetics, including reaction processes catalyzed by various electrode materials and catalysts, such as Pt-based alloys, carbon ...