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Influence of Alkali Metal Cations on the Hydrogen Evolution Reaction Activity of Pt, Ir, Au, and Ag Electrodes in Alkaline Electrolytes

Xue, Song, Garlyyev, Batyr, Watzele, Sebastian, Liang, Yunchang, Fichtner, Johannes, Pohl, Marcus D., Bandarenka, Aliaksandr S.·2018·ChemElectroChem

Abstract

Fundamental understanding of the influence of so‐called spectator electrolyte species on the catalytic activity of electrodes is considered as a relatively novel direction in electrocatalysis. Numerous recent examples show that seemingly inert electrolyte components drastically influence the performance of catalytic centers. Even alkali metal cations in aqueous electrolytes at high pH values can change the reaction turnover frequency by orders of magnitude, depending on their nature, from Li+ to Cs+. Here, we use several electrodes, namely Pt(polycrystalline), Pt(111), Pt(221), Ir(111), Au(111), and Ag(polycrystalline), in different alkali metal cation‐containing electrolytes to reveal their role in the hydrogen evolution reaction (HER). The HER activity trends of various Pt electrodes, irrespective of their surface structure, correlate with the hydration energy of the corresponding alkali metal cations present in the electrolyte (Li+>Na+>K+>Rb+>Cs+). The trend remains the same for the Ir(111), however, it is reversed for Au(111) and Ag(pc) electrocatalysts.

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Metadata

Authors
Xue, S., Garlyyev, B., Watzele, S., Liang, Y., Fichtner, J., Pohl, M. D., & Bandarenka, A. S.
Venue
ChemElectroChem
Publisher
Wiley
Published
2018-06-19
Volume
5
Issue
17
Pages
2326-2329
ISSN
2196-0216 (ISSN-L)
OpenAlex
W2805871080
Cited by
179
References
3
FWCI
3.05
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Influence of Alkali Metal Cations on the Hydrogen Evolution Reaction Activity of Pt, Ir, Au, and Ag Electrodes in Alkaline Electrolytes. https://app.cochat.ai/papers/10.1002/celc.201800690
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Xue, S., Garlyyev, B., Watzele, S., Liang, Y., Fichtner, J., Pohl, M. D., & Bandarenka, A. S. (2018). Influence of Alkali Metal Cations on the Hydrogen Evolution Reaction Activity of Pt, Ir, Au, and Ag Electrodes in Alkaline Electrolytes. ChemElectroChem. https://doi.org/10.1002/celc.201800690

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