Degradation mechanism of self-supported high-entropy metallic glass cathode in fluctuating renewable energy-powered acid water electrolysis

Yangzheng Li; Liandong Li; Bing Lin; Jichao Qiao; Hailong Zhang; Taigang Zhou; Yingying Wang; Junlei Tang; Takeshi Wada; Hidemi Kato

doi:10.1016/j.corsci.2024.112223

Degradation mechanism of self-supported high-entropy metallic glass cathode in fluctuating renewable energy-powered acid water electrolysis

Yangzheng Li, Liandong Li, Bing Lin, Jichao Qiao, Hailong Zhang, Taigang Zhou, Yingying Wang, Junlei Tang, Takeshi Wada, Hidemi Kato

School of Mechanics,Civil Engineering and Architecture

Research output: Contribution to journal › Article › peer-review

Abstract

The degradation behavior and hydrogen evolution reaction (HER) performance of nano-porous PdPtCuNiP (NP-PdPtCuNiP) high entropy metallic glass in 65℃ 0.5 mol L⁻¹ H₂SO₄ electrolyte was investigated. For electrolytic system shutdown condition, the corrosion effect would lead the dissolution of Ni, Cu and P from NP-PdPtCuNiP surface, and form a Pd-Pt binary alloy catalytic surface. Meanwhile, the input power fluctuation resulting in incomplete cathodic protection of the cathode. The corrosion on cathode surface caused the surface constituent and morphology changed, and the surface condition is affected by power frequency. Finally, an in-situ repair strategy for degraded cathode is proposed.

Original language	English
Article number	112223
Journal	Corrosion Science
Volume	236
DOIs	https://doi.org/10.1016/j.corsci.2024.112223
State	Published - 1 Aug 2024

Keywords

Fluctuating input power
HER electrode degradation
High entropy metallic glass
In-situ repair strategy

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.corsci.2024.112223

Cite this

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title = "Degradation mechanism of self-supported high-entropy metallic glass cathode in fluctuating renewable energy-powered acid water electrolysis",

abstract = "The degradation behavior and hydrogen evolution reaction (HER) performance of nano-porous PdPtCuNiP (NP-PdPtCuNiP) high entropy metallic glass in 65℃ 0.5 mol L−1 H2SO4 electrolyte was investigated. For electrolytic system shutdown condition, the corrosion effect would lead the dissolution of Ni, Cu and P from NP-PdPtCuNiP surface, and form a Pd-Pt binary alloy catalytic surface. Meanwhile, the input power fluctuation resulting in incomplete cathodic protection of the cathode. The corrosion on cathode surface caused the surface constituent and morphology changed, and the surface condition is affected by power frequency. Finally, an in-situ repair strategy for degraded cathode is proposed.",

keywords = "Fluctuating input power, HER electrode degradation, High entropy metallic glass, In-situ repair strategy",

author = "Yangzheng Li and Liandong Li and Bing Lin and Jichao Qiao and Hailong Zhang and Taigang Zhou and Yingying Wang and Junlei Tang and Takeshi Wada and Hidemi Kato",

note = "Publisher Copyright: {\textcopyright} 2024 Elsevier Ltd",

year = "2024",

month = aug,

day = "1",

doi = "10.1016/j.corsci.2024.112223",

language = "英语",

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journal = "Corrosion Science",

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TY - JOUR

T1 - Degradation mechanism of self-supported high-entropy metallic glass cathode in fluctuating renewable energy-powered acid water electrolysis

AU - Li, Yangzheng

AU - Li, Liandong

AU - Lin, Bing

AU - Qiao, Jichao

AU - Zhang, Hailong

AU - Zhou, Taigang

AU - Wang, Yingying

AU - Tang, Junlei

AU - Wada, Takeshi

AU - Kato, Hidemi

PY - 2024/8/1

Y1 - 2024/8/1

N2 - The degradation behavior and hydrogen evolution reaction (HER) performance of nano-porous PdPtCuNiP (NP-PdPtCuNiP) high entropy metallic glass in 65℃ 0.5 mol L−1 H2SO4 electrolyte was investigated. For electrolytic system shutdown condition, the corrosion effect would lead the dissolution of Ni, Cu and P from NP-PdPtCuNiP surface, and form a Pd-Pt binary alloy catalytic surface. Meanwhile, the input power fluctuation resulting in incomplete cathodic protection of the cathode. The corrosion on cathode surface caused the surface constituent and morphology changed, and the surface condition is affected by power frequency. Finally, an in-situ repair strategy for degraded cathode is proposed.

AB - The degradation behavior and hydrogen evolution reaction (HER) performance of nano-porous PdPtCuNiP (NP-PdPtCuNiP) high entropy metallic glass in 65℃ 0.5 mol L−1 H2SO4 electrolyte was investigated. For electrolytic system shutdown condition, the corrosion effect would lead the dissolution of Ni, Cu and P from NP-PdPtCuNiP surface, and form a Pd-Pt binary alloy catalytic surface. Meanwhile, the input power fluctuation resulting in incomplete cathodic protection of the cathode. The corrosion on cathode surface caused the surface constituent and morphology changed, and the surface condition is affected by power frequency. Finally, an in-situ repair strategy for degraded cathode is proposed.

KW - Fluctuating input power

KW - HER electrode degradation

KW - High entropy metallic glass

KW - In-situ repair strategy

UR - http://www.scopus.com/inward/record.url?scp=85197246534&partnerID=8YFLogxK

U2 - 10.1016/j.corsci.2024.112223

DO - 10.1016/j.corsci.2024.112223

M3 - 文章

AN - SCOPUS:85197246534

SN - 0010-938X

VL - 236

JO - Corrosion Science

JF - Corrosion Science

M1 - 112223

ER -

Degradation mechanism of self-supported high-entropy metallic glass cathode in fluctuating renewable energy-powered acid water electrolysis

Abstract

Keywords

UN SDGs

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