期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 60, 期 29, 页码 16044-16050出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202103557
关键词
electrocatalysis; electronic structures; hydrogen evolution; metal nanoparticles; metal-carbon interactions
资金
- National Natural Science Foundation of China [21905271, 11974068, 91961204, 21905202]
- Liaoning Natural Science Foundation [20180510029]
- Dalian National Laboratory for Clean Energy (DNL), CAS
- DNL Cooperation Fund, CAS [DNL180402]
- Supercomputing Center of Dalian University of Technology
The study introduces a new method to control the electrocatalytic behavior of supported metal nanoparticles by dispersing single metal atoms on O-doped graphene, showing improved performance for the hydrogen evolution reaction. This approach offers a new strategy for modulating the activity and stability of metal nanoparticles in electrocatalysis processes.
Precisely regulating the electronic structures of metal active species is highly desirable for electrocatalysis. However, carbon with inert surface provide weak metal-support interaction, which is insufficient to modulate the electronic structures of metal nanoparticles. Herein, we propose a new method to control the electrocatalytic behavior of supported metal nanoparticles by dispersing single metal atoms on an O-doped graphene. Ideal atomic metal species are firstly computationally screened. We then verify this concept by deposition of Ru nanoparticles onto an O-doped graphene decorated with single metal atoms (e.g., Fe, Co, and Ni) for hydrogen evolution reaction (HER). Consistent with theoretical predictions, such hybrid catalysts show outstanding HER performance, much superior to other reported electrocatalysts such as the state-of-the-art Pt/C. This work offers a new strategy for modulating the activity and stability of metal nanoparticles for electrocatalysis processes.
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