Oxygen Reduction Reaction - an overview | ScienceDirect Topics
The oxygen reduction reaction (ORR) is a multi-electron multi-step reaction. There are two models, associative and dissociative, proposed in the literature to determine electro-oxidation of oxygen with Pt sites.
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.
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 demandi...
Selective oxygen reduction reaction: mechanism understanding, …
2024年6月27日 · Here, a comprehensive and critical review is provided to present the recent advances in the field of the electrocatalytic ORR. The two-electron and four-electron transfer catalytic mechanisms and key evaluation parameters of the ORR are discussed first.
Understanding Catalytic Activity Trends in the Oxygen Reduction Reaction
2018年2月6日 · Despite the dedicated search for novel catalysts for fuel cell applications, the intrinsic oxygen reduction reaction (ORR) activity of materials has not improved significantly over the past decade. Here, we review the role of theory in understanding the ORR mechanism and highlight the descriptor-based approaches that have been used to identify ...
Manipulating the oxygen reduction reaction pathway on Pt …
2022年2月3日 · Electrocatalytic oxygen reduction reaction (ORR) is an important reaction in the process of renewable energy conversion and utilization. Molecular O 2 can be reduced via a 4e − -pathway...
Oxygen Reduction Reaction - an overview | ScienceDirect Topics
The oxygen reduction reaction (ORR) is an essential process in electrochemistry for energy converting on fuel cells. Recent progress has been made in this reaction using size-selected clusters by several research groups.
Oxygen Reduction Reaction; Fuel Cells | SpringerLink
The oxygen reduction reaction (ORR) holds paramount significance in energy conversion systems, notably in applications like fuel cells. The immediate processes occurring at the cathode and anode involve the ORR and fuel oxidation reactions, respectively.
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...
Fundamentals of Oxygen Reduction Reaction | Encyclopedia MDPI
2022年9月2日 · Oxygen reduction reaction (ORR) has been the subject of huge investigation since it is at the heart of various energy conversion and storage systems such as fuel cells, metal-air batteries, and so on. The mechanistic pathway is governed not only by the oxygen adsorption mode, but it also depends on the dissociation barrier of the catalyst surface.
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