Hydrogen Evolution and Corrosion Behaviors of Cu/Co-Pt As an Effective Electrocatalyst

Ali Döner; Serap Toprak Döşlü

doi:10.17776/csj.1587512

EN

Hydrogen Evolution and Corrosion Behaviors of Cu/Co-Pt As an Effective Electrocatalyst

Abstract

It is difficult to manufacture a highly efficient and stable electrocatalyst with high corrosion resistance for the hydrogen evolution reaction (HER) in alkaline media. In this study, a Cu/Co-Pt electrocatalyst with high characteristic hydrogen evolution, stability, and high corrosion resistance is designed. Copper was first coated with a thin film of cobalt (Cu/Co) then this surface is modified with trace amounts of platinum nanoparticles (Cu/Co-Pt). Cu/Co-Pt displays very high exchange current density (8.03 mA cm-2) when compared to literature. Hydrogen adsorption onset potential (Eonset) and charge transfer resistance (Rct) are found to be 1.03 V and 0.34 Ω cm2 at -1.35 V, respectively. Cu/Co-Pt also shows very stable catalytic performance with chronoamperometry (CA) and cyclic tests. In addition to HER performance of Cu/Co-Pt, semi logarithmic anodic current-potential curves and EIS are used to determine the corrosion behavior of Cu/Co-Pt. This electrocatalyst has very high polarization resistance (Rp) values over time in a strong alkaline environment. This high protection may due to the passive layer resulting from platinum nanoparticles formed on the surface. This study contains valuable information on the preparation of electrocatalysts in a facile method that are highly efficient, stable and resistant to strong alkaline environments for commercial applications.

Keywords

Thanks

We would like to thank to Prof. Dr. Reşit YILDIZ from Mardin Artuklu University and Mardin Artuklu University for their contributions.

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Details

Primary Language

English

Subjects

Electrochemistry , Catalysis and Mechanisms of Reactions

Journal Section

Research Article

Authors

Ali Döner ^*
0000-0002-3403-5370
Türkiye

Serap Toprak Döşlü
0000-0002-5455-8179
Türkiye

Publication Date

September 30, 2025

Submission Date

November 18, 2024

Acceptance Date

June 25, 2025

Published in Issue

Year 2025 Volume: 46 Number: 3

DOI

https://doi.org/10.17776/csj.1587512

IZ

https://izlik.org/JA72SE72WM

Cite

RIS / Bibtex

APA

Döner, A., & Toprak Döşlü, S. (2025). Hydrogen Evolution and Corrosion Behaviors of Cu/Co-Pt As an Effective Electrocatalyst. Cumhuriyet Science Journal, 46(3), 447-456. https://doi.org/10.17776/csj.1587512

Öz

Hydrogen Evolution and Corrosion Behaviors of Cu/Co-Pt As an Effective Electrocatalyst

Abstract

Keywords

Thanks

References

Details

Primary Language

Subjects

Journal Section

Authors

Publication Date

Submission Date

Acceptance Date

Published in Issue

DOI

IZ

Cite