Revealing the Role of Ru-O-Ce Interface Coupling in CeO2-Ru Aerogel for Boosting Hydrogen Evolution Kinetics

Haoxin Fan; Xinhao Wan; Shougang Sun; Xuemei Zhou; Xiuming Bu; Jianqi Ye; Rui Bai; Hengwei Lou; Yao Chen; Jie Gao; Jian Zhang; Wei Gao; Dan Wen

doi:10.1002/aenm.202405681

Revealing the Role of Ru-O-Ce Interface Coupling in CeO₂-Ru Aerogel for Boosting Hydrogen Evolution Kinetics

Haoxin Fan, Xinhao Wan, Shougang Sun, Xuemei Zhou, Xiuming Bu, Jianqi Ye, Rui Bai, Hengwei Lou, Yao Chen, Jie Gao, Jian Zhang, Wei Gao, Dan Wen

School of Materials Sience and Engineering

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

2 Scopus citations

Abstract

Designing heterogeneous interface to enhance the kinetics for electrocatalysts is a highly efficient but challenging pathway toward hydrogen evolution reaction (HER) in water electrolysis. Herein, the heterogeneous coupling of CeO₂ quantum dots onto porous Ru aerogel through interfacial Ru-O-Ce bridge is proposed to construct CeO₂-Ru aerogel as the superior HER electrocatalyst with ultra-low overpotentials. In situ characterizations and theoretical calculations reveal the electron distribution at the heterogeneous Ru-O-Ce bridge to boost hydrogen bonding at Ru sites, and the faster water adsorption and dissociation at the CeO₂ sites to enhance the HER kinetics. Furthermore, CeO₂-Ru aerogel is employed as excellent cathodes for both acidic and alkaline water electrolyzers with ampere-level current density and stably operated over 500 hours. Thus, the synergistic effect for CeO₂-Ru aerogel through the Ru-O-Ce bridge tunes the HER catalytic mechanism and reinforces the activity, realizing highly efficient hydrogen generation in water electrolysis.

Original language	English
Journal	Advanced Energy Materials
DOIs	https://doi.org/10.1002/aenm.202405681
State	Accepted/In press - 2025

Keywords

HER kinetics
interfacial interaction
metal aerogel
Ru-O-Ce bridge
water dissociation

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

Access to Document

10.1002/aenm.202405681

Cite this

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title = "Revealing the Role of Ru-O-Ce Interface Coupling in CeO2-Ru Aerogel for Boosting Hydrogen Evolution Kinetics",

abstract = "Designing heterogeneous interface to enhance the kinetics for electrocatalysts is a highly efficient but challenging pathway toward hydrogen evolution reaction (HER) in water electrolysis. Herein, the heterogeneous coupling of CeO2 quantum dots onto porous Ru aerogel through interfacial Ru-O-Ce bridge is proposed to construct CeO2-Ru aerogel as the superior HER electrocatalyst with ultra-low overpotentials. In situ characterizations and theoretical calculations reveal the electron distribution at the heterogeneous Ru-O-Ce bridge to boost hydrogen bonding at Ru sites, and the faster water adsorption and dissociation at the CeO2 sites to enhance the HER kinetics. Furthermore, CeO2-Ru aerogel is employed as excellent cathodes for both acidic and alkaline water electrolyzers with ampere-level current density and stably operated over 500 hours. Thus, the synergistic effect for CeO2-Ru aerogel through the Ru-O-Ce bridge tunes the HER catalytic mechanism and reinforces the activity, realizing highly efficient hydrogen generation in water electrolysis.",

keywords = "HER kinetics, interfacial interaction, metal aerogel, Ru-O-Ce bridge, water dissociation",

author = "Haoxin Fan and Xinhao Wan and Shougang Sun and Xuemei Zhou and Xiuming Bu and Jianqi Ye and Rui Bai and Hengwei Lou and Yao Chen and Jie Gao and Jian Zhang and Wei Gao and Dan Wen",

note = "Publisher Copyright: {\textcopyright} 2025 Wiley-VCH GmbH.",

year = "2025",

doi = "10.1002/aenm.202405681",

language = "英语",

journal = "Advanced Energy Materials",

issn = "1614-6832",

publisher = "John Wiley and Sons Inc",

}

TY - JOUR

T1 - Revealing the Role of Ru-O-Ce Interface Coupling in CeO2-Ru Aerogel for Boosting Hydrogen Evolution Kinetics

AU - Fan, Haoxin

AU - Wan, Xinhao

AU - Sun, Shougang

AU - Zhou, Xuemei

AU - Bu, Xiuming

AU - Ye, Jianqi

AU - Bai, Rui

AU - Lou, Hengwei

AU - Chen, Yao

AU - Gao, Jie

AU - Zhang, Jian

AU - Gao, Wei

AU - Wen, Dan

PY - 2025

Y1 - 2025

N2 - Designing heterogeneous interface to enhance the kinetics for electrocatalysts is a highly efficient but challenging pathway toward hydrogen evolution reaction (HER) in water electrolysis. Herein, the heterogeneous coupling of CeO2 quantum dots onto porous Ru aerogel through interfacial Ru-O-Ce bridge is proposed to construct CeO2-Ru aerogel as the superior HER electrocatalyst with ultra-low overpotentials. In situ characterizations and theoretical calculations reveal the electron distribution at the heterogeneous Ru-O-Ce bridge to boost hydrogen bonding at Ru sites, and the faster water adsorption and dissociation at the CeO2 sites to enhance the HER kinetics. Furthermore, CeO2-Ru aerogel is employed as excellent cathodes for both acidic and alkaline water electrolyzers with ampere-level current density and stably operated over 500 hours. Thus, the synergistic effect for CeO2-Ru aerogel through the Ru-O-Ce bridge tunes the HER catalytic mechanism and reinforces the activity, realizing highly efficient hydrogen generation in water electrolysis.

AB - Designing heterogeneous interface to enhance the kinetics for electrocatalysts is a highly efficient but challenging pathway toward hydrogen evolution reaction (HER) in water electrolysis. Herein, the heterogeneous coupling of CeO2 quantum dots onto porous Ru aerogel through interfacial Ru-O-Ce bridge is proposed to construct CeO2-Ru aerogel as the superior HER electrocatalyst with ultra-low overpotentials. In situ characterizations and theoretical calculations reveal the electron distribution at the heterogeneous Ru-O-Ce bridge to boost hydrogen bonding at Ru sites, and the faster water adsorption and dissociation at the CeO2 sites to enhance the HER kinetics. Furthermore, CeO2-Ru aerogel is employed as excellent cathodes for both acidic and alkaline water electrolyzers with ampere-level current density and stably operated over 500 hours. Thus, the synergistic effect for CeO2-Ru aerogel through the Ru-O-Ce bridge tunes the HER catalytic mechanism and reinforces the activity, realizing highly efficient hydrogen generation in water electrolysis.

KW - HER kinetics

KW - interfacial interaction

KW - metal aerogel

KW - Ru-O-Ce bridge

KW - water dissociation

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U2 - 10.1002/aenm.202405681

DO - 10.1002/aenm.202405681

M3 - 文章

AN - SCOPUS:85218823333

SN - 1614-6832

JO - Advanced Energy Materials

JF - Advanced Energy Materials

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