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

IF 24.4 1区材料科学 Q1 CHEMISTRY, PHYSICAL Advanced Energy Materials Pub Date : 2025-02-11 DOI:10.1002/aenm.202405681

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

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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.

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来源期刊

Advanced Energy Materials CHEMISTRY, PHYSICAL-ENERGY & FUELS

CiteScore

41.90

自引率

4.00%

发文量

889

审稿时长

1.4 months

期刊介绍： Established in 2011, Advanced Energy Materials is an international, interdisciplinary, English-language journal that focuses on materials used in energy harvesting, conversion, and storage. It is regarded as a top-quality journal alongside Advanced Materials, Advanced Functional Materials, and Small. With a 2022 Impact Factor of 27.8, Advanced Energy Materials is considered a prime source for the best energy-related research. The journal covers a wide range of topics in energy-related research, including organic and inorganic photovoltaics, batteries and supercapacitors, fuel cells, hydrogen generation and storage, thermoelectrics, water splitting and photocatalysis, solar fuels and thermosolar power, magnetocalorics, and piezoelectronics. The readership of Advanced Energy Materials includes materials scientists, chemists, physicists, and engineers in both academia and industry. The journal is indexed in various databases and collections, such as Advanced Technologies & Aerospace Database, FIZ Karlsruhe, INSPEC (IET), Science Citation Index Expanded, Technology Collection, and Web of Science, among others.