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Atomic-Level Tailoring of the Electronic Metal-Support Interaction Between Pt-Co3O4 Interfaces for High Hydrogen
Ding Yuan1, Zunpeng Hu1, Zihao Chen1
1Industrial Research Institute of Nonwovens and Technical Textiles, Shandong Engineering Research Center for Specialty Nonwoven Materials, College of Textiles and Clothing, Qingdao University, Qingdao 266071, Shandong, People's Republic of China.
Atomic layer deposition and nitrogen doping create advanced metal-oxide catalysts. This enhances hydrogen evolution performance and platinum utilization by optimizing electronic metal-support interactions.
Area of Science:
- Materials Science
- Catalysis
- Electrochemistry
Background:
- Optimizing metal-oxide interfaces is key for catalyst performance but remains challenging.
- Atomic-level control over electronic metal-support interactions (EMSI) is crucial for enhancing catalytic activity.
Purpose of the Study:
- To tailor EMSI at the atomic level using atomic layer deposition (ALD) and heteroatom doping.
- To achieve high hydrogen evolution reaction (HER) performance and improve platinum (Pt) utilization.
Main Methods:
- Utilized ALC technique combined with heteroatom doping strategy.
- Employed theoretical calculations to investigate the electronic structure and interactions at the interface.
Main Results:
- Successfully modulated the Pt-Co3O4 interface at the atomic level.
- Nitrogen doping in Co3O4 significantly adjusted the EMSI.
- Optimized the d-band center of Pt and reaction intermediate adsorption/desorption.
Conclusions:
- Atomic-level regulation of EMSI is achievable and enhances electrocatalyst performance.
- Nitrogen-doped Co3O4 interfaces offer a promising strategy for advanced electrocatalysts.
- Provides mechanistic insights for developing future energy application catalysts.
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