A Review on Experimental Identification of Active Sites in Model Bifunctional Electrocatalytic Systems for Oxygen Reduction and Evolution Reactions

Shujin Hou; Regina M. Kluge; Richard W. Haid; Elena L. Gubanova; Sebastian A. Watzele; Aliaksandr S. Bandarenka; Batyr Garlyyev

doi:10.1002/celc.202100584

A Review on Experimental Identification of Active Sites in Model Bifunctional Electrocatalytic Systems for Oxygen Reduction and Evolution Reactions

Shujin Hou, Regina M. Kluge, Richard W. Haid, Elena L. Gubanova, Sebastian A. Watzele, Aliaksandr S. Bandarenka, Batyr Garlyyev

Assistant Professorship of Physics of Energy Conversion and Storage

Technical University of Munich

Research output: Contribution to journal › Review article › peer-review

17 Scopus citations

Abstract

Efficient electrocatalysis of the oxygen reduction (ORR) and evolution (OER) reactions is essential in numerous renewable energy conversion systems, such as fuel cells, metal-air batteries, and water electrolyzers. Design and optimization of electrocatalytic materials for such systems primarily rely on understanding the nature of active centers on the catalyst surface. This review focuses on several important aspects of the experimental identification of active sites on various model bifunctional ORR/OER electrocatalytic surfaces. Applications of the state-of-the-art experimental techniques are analyzed. In addition, approaches to investigate and understand the influence of some supporting electrolyte components on the ORR and OER activities are discussed.

Original language	English
Pages (from-to)	3433-3456
Number of pages	24
Journal	ChemElectroChem
Volume	8
Issue number	18
DOIs	https://doi.org/10.1002/celc.202100584
State	Published - 13 Sep 2021

Keywords

active sites
bifunctional electrocatalysts
electrocatalysis
oxygen evolution reaction
oxygen reduction reaction

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This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1002/celc.202100584

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title = "A Review on Experimental Identification of Active Sites in Model Bifunctional Electrocatalytic Systems for Oxygen Reduction and Evolution Reactions",

abstract = "Efficient electrocatalysis of the oxygen reduction (ORR) and evolution (OER) reactions is essential in numerous renewable energy conversion systems, such as fuel cells, metal-air batteries, and water electrolyzers. Design and optimization of electrocatalytic materials for such systems primarily rely on understanding the nature of active centers on the catalyst surface. This review focuses on several important aspects of the experimental identification of active sites on various model bifunctional ORR/OER electrocatalytic surfaces. Applications of the state-of-the-art experimental techniques are analyzed. In addition, approaches to investigate and understand the influence of some supporting electrolyte components on the ORR and OER activities are discussed.",

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author = "Shujin Hou and Kluge, {Regina M.} and Haid, {Richard W.} and Gubanova, {Elena L.} and Watzele, {Sebastian A.} and Bandarenka, {Aliaksandr S.} and Batyr Garlyyev",

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AU - Hou, Shujin

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AU - Haid, Richard W.

AU - Gubanova, Elena L.

AU - Watzele, Sebastian A.

AU - Bandarenka, Aliaksandr S.

AU - Garlyyev, Batyr

PY - 2021/9/13

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N2 - Efficient electrocatalysis of the oxygen reduction (ORR) and evolution (OER) reactions is essential in numerous renewable energy conversion systems, such as fuel cells, metal-air batteries, and water electrolyzers. Design and optimization of electrocatalytic materials for such systems primarily rely on understanding the nature of active centers on the catalyst surface. This review focuses on several important aspects of the experimental identification of active sites on various model bifunctional ORR/OER electrocatalytic surfaces. Applications of the state-of-the-art experimental techniques are analyzed. In addition, approaches to investigate and understand the influence of some supporting electrolyte components on the ORR and OER activities are discussed.

AB - Efficient electrocatalysis of the oxygen reduction (ORR) and evolution (OER) reactions is essential in numerous renewable energy conversion systems, such as fuel cells, metal-air batteries, and water electrolyzers. Design and optimization of electrocatalytic materials for such systems primarily rely on understanding the nature of active centers on the catalyst surface. This review focuses on several important aspects of the experimental identification of active sites on various model bifunctional ORR/OER electrocatalytic surfaces. Applications of the state-of-the-art experimental techniques are analyzed. In addition, approaches to investigate and understand the influence of some supporting electrolyte components on the ORR and OER activities are discussed.

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KW - oxygen evolution reaction

KW - oxygen reduction reaction

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A Review on Experimental Identification of Active Sites in Model Bifunctional Electrocatalytic Systems for Oxygen Reduction and Evolution Reactions

Abstract

Keywords

UN SDGs

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