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Application of Scanning Tunneling Microscopy in Electrocatalysis and Electrochemistry

Journal Article


Abstract


  • Abstract: Scanning tunneling microscopy (STM) has gained increasing attention in the field of electrocatalysis due to its ability to reveal electrocatalyst surface structures down to the atomic level in either ultra-high-vacuum (UHV) or harsh electrochemical conditions. The detailed knowledge of surface structures, surface electronic structures, surface active sites as well as the interaction between surface adsorbates and electrocatalysts is highly beneficial in the study of electrocatalytic mechanisms and for the rational design of electrocatalysts. Based on this, this review will discuss the application of STM in the characterization of electrocatalyst surfaces and the investigation of electrochemical interfaces between electrocatalyst surfaces and reactants. Based on different operating conditions, UHV-STM and STM in electrochemical environments (EC-STM) are discussed separately. This review will also present emerging techniques including high-speed EC-STM, scanning noise microscopy and tip-enhanced Raman spectroscopy. Graphic Abstract: [Figure not available: see fulltext.]

Publication Date


  • 2021

Citation


  • Feng, H., Xu, X., Du, Y., & Dou, S. X. (2021). Application of Scanning Tunneling Microscopy in Electrocatalysis and Electrochemistry. Electrochemical Energy Reviews, 4(2), 249-268. doi:10.1007/s41918-020-00074-3

Scopus Eid


  • 2-s2.0-85106432546

Start Page


  • 249

End Page


  • 268

Volume


  • 4

Issue


  • 2

Abstract


  • Abstract: Scanning tunneling microscopy (STM) has gained increasing attention in the field of electrocatalysis due to its ability to reveal electrocatalyst surface structures down to the atomic level in either ultra-high-vacuum (UHV) or harsh electrochemical conditions. The detailed knowledge of surface structures, surface electronic structures, surface active sites as well as the interaction between surface adsorbates and electrocatalysts is highly beneficial in the study of electrocatalytic mechanisms and for the rational design of electrocatalysts. Based on this, this review will discuss the application of STM in the characterization of electrocatalyst surfaces and the investigation of electrochemical interfaces between electrocatalyst surfaces and reactants. Based on different operating conditions, UHV-STM and STM in electrochemical environments (EC-STM) are discussed separately. This review will also present emerging techniques including high-speed EC-STM, scanning noise microscopy and tip-enhanced Raman spectroscopy. Graphic Abstract: [Figure not available: see fulltext.]

Publication Date


  • 2021

Citation


  • Feng, H., Xu, X., Du, Y., & Dou, S. X. (2021). Application of Scanning Tunneling Microscopy in Electrocatalysis and Electrochemistry. Electrochemical Energy Reviews, 4(2), 249-268. doi:10.1007/s41918-020-00074-3

Scopus Eid


  • 2-s2.0-85106432546

Start Page


  • 249

End Page


  • 268

Volume


  • 4

Issue


  • 2