In Situ/Operando Characterization Techniques to Probe the Electrochemical Reactions for Energy Conversion

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Xuning Li
  • Hsin-Yi Wang
  • Hongbin Yang
  • Weizheng Cai
  • Song Liu

Detail(s)

Original languageEnglish
Article number1700395
Journal / PublicationSmall Methods
Volume2
Issue number6
Publication statusPublished - 12 Jun 2018
Externally publishedYes

Abstract

The water-splitting reaction, including the hydrogen and oxygen evolution reactions, as well as the electrochemical oxygen and CO<sub>2</sub> reduction reactions offer promising solutions to address the global energy scarcity and the associated environmental issues. However, the lack of deep insight into the reaction mechanisms and clear identification of the catalytic active sites hinder any breakthrough for the development of efficient electrocatalysts with high performance and durability. Operando characterization techniques allowing in situ monitoring the surface oxidation state and local atomic-structure transformation are capable of probing the active sites and promoting the fundamental understanding of the reaction mechanism in these systems. Herein, the recent applications of various operando characterization techniques in identifying the active sites and capturing the geometric structure, oxidation state, and local atomic-structure evolution of the catalysts during water electrolysis and O<sub>2</sub>/CO<sub>2</sub> electroreduction are thoroughly summarized. The challenges and outlook in developing operando techniques to further extend the understanding of the underlying mechanism during electrochemical energy-conversion reactions are discussed. © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Research Area(s)

  • active sites, electrochemical reactions, operando, oxygen reduction reaction, X-ray absorption

Bibliographic Note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Citation Format(s)

In Situ/Operando Characterization Techniques to Probe the Electrochemical Reactions for Energy Conversion. / Li, Xuning; Wang, Hsin-Yi; Yang, Hongbin et al.
In: Small Methods, Vol. 2, No. 6, 1700395, 12.06.2018.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review