In Situ/Operando Methods for Understanding Electrocatalytic Nitrate Reduction Reaction

Author:

Wang Huimin12,Huang Jingjing2,Cai Jinmeng2,Wei Yingying2,Cao Ang3,Liu Baozhong1,Lu Siyu2ORCID

Affiliation:

1. College of Chemistry and Chemical Engineering Henan Polytechnic University Jiaozuo 454000 China

2. Green Catalysis Center, and College of Chemistry Zhengzhou University Zhengzhou 450001 China

3. Department of Physics Technical University of Denmark Kongens Lyngby 2800 Denmark

Abstract

AbstractWith the development of industrial and agricultural, a large amount of nitrate is produced, which not only disrupts the natural nitrogen cycle, but also endangers public health. Among the commonly used nitrate treatment techniques, the electrochemical nitrate reduction reaction (eNRR) has attracted extensive attention due to its mild conditions, pollution‐free nature, and other advantages. An in‐depth understanding of the eNRR mechanism is the prerequisite for designing highly efficient electrocatalysts. However, some traditional characterization tools cannot comprehensively and deeply study the reaction process. It is necessary to develop in situ and operando techniques to reveal the reaction mechanism at the time‐resolved and atomic level. This review discusses the eNRR mechanism and summarizes the possible in situ techniques used in eNRR. A detailed introduction of various in situ techniques and their help in understanding the reaction mechanism is provided. Finally, the current challenges and future opportunities in this research area are discussed and highlighted.

Funder

National Natural Science Foundation of China

China Postdoctoral Science Foundation

Natural Science Foundation of Henan Province

Publisher

Wiley

Subject

General Materials Science,General Chemistry

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