Electrochemical Formation of a MnO 2 Nanoshield on Ru-Doped Mn 3 O 4 for Ultrastable Acidic Oxygen Evolution Catalysis
Zhengzhou University · Diamond Materials (United States) · +4 more institutions
Abstract
Proton exchange membrane (PEM) water electrolysis is a promising strategy for large-scale hydrogen production; however, its industrial feasibility is hampered by the lack of highly active and durable oxygen evolution reaction (OER) catalysts in acidic environments. Ru-based catalysts offer high intrinsic activity but are susceptible to dissolution and structural degradation. To address this, this study proposes an electrically induced “nanoshield” strategy. A Ru single atom-doped Mn3O4 (Ru–Mn3O4) catalyst enables the in situ spontaneous reconstruction of the catalyst surface structure. Under an electric field, Mn3O4 crystals undergo interlayer slip and polarization rotation, inducing the growth of a porous…
Citation impact
- FWCI
- 26.23
- Percentile
- 100%
- References
- 37
Authors
6- HSHaoqiang Song
Zhengzhou University
- JYJingkun Yu
Zhengzhou University
- MNMingjun Nie
Zhengzhou University
- SCShaobo Cheng
Zhengzhou University, Diamond Materials (United States)
- ZTZhiyong Tang
Center for NanoScience, Nanosystem (Russia), National Center for Nanoscience and Technology, Center for Excellence in Education
Topics & keywords
- Overpotential
- Catalysis
- Oxygen evolution
- Electrolysis of water
- Electrochemistry
- Dissolution
- Electrolysis
- Polarization (electrochemistry)