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Observations and Theories of Quantum Effects in Proton Transfer Electrode Processes

preprint
submitted on 15.08.2019 and posted on 16.08.2019 by Ken Sakaushi, Andrey Lyalin, Tetsuya Taketsugu
Quantum tunneling effects play an important role in a variety of chemical reactions considerably affecting the reaction rates via opening the classically-forbidden paths and emerging as highly efficient or selective processes. However, in the case of electrochemical reactions, quantum tunneling effects are less investigated due to complicated nature of chemical interactions at the electrified interfaces. In this review, we summarize the experimental/theoretical concept of electrochemical quantum proton tunneling (EQPT), which is a key element in microscopic electrode processes. First, we review the experimental observations of EQPT, and next, we discuss possible theoretical pictures of the process. This review shows that a combination of a wide spectrum of scientific efforts is required to understand microscopic mechanism of EQPT including development of the precise electrochemistry-oriented experimental techniques and methodologies, formulation of the appropriate theoretical models for specific systems and performance of the advanced computational simulations.

Funding

JSPS KAKENHI grant number 19K15527

TIA collaborative research program [Kakehashi] Program No. TK19-002

History

Email Address of Submitting Author

sakaushi.ken@nims.go.jp

Institution

National Institute for Materials Science

Country

Japan

ORCID For Submitting Author

0000-0003-4797-9087

Declaration of Conflict of Interest

No conflict of Interest

Version Notes

version 1 submitted on 15th August 2019

Exports