A Mo-guided self-reconstructed highly active NiOOH catalyst for a durable alkaline oxygen evolution reaction
Alkaline water electrolysis (AWE) is vital for green hydrogen production but suffers from sluggish oxygen evolution reaction (OER) kinetics and poor electrode stability. Here, a facile and feasible Mo-guided self-reconstruction strategy was developed to construct an outstanding pure nickel-based OER electrocatalyst (γ-NiOOH<sub>Mo-SR</sub>/NF). Benefiting from the <i>in situ</i> generated abundant high-valent Ni sites and interfacial hydrogen-bonding network, γ-NiOOH<sub>Mo-SR</sub>/NF exhibited excellent OER activity and impressive long-term stability over 1100 h at 1.0 A cm<sup>-2</sup>, even exceeding 100 h at 3.0 A cm<sup>-2</sup>, outperforming most reported non-precious metal catalysts. <i>In situ</i> spectroscopic studies confirmed that the interfacial hydrogen-bonding network promoted OH<sup>-</sup> transport and suppressed local acidification, thereby endowing γ-NiOOH<sub>Mo-SR</sub>/NF with superior OER performance. The present work is instructive for designing highly efficient Ni-based OER electrocatalysts.
Authors
- Yuan He (ORCID: https://orcid.org/0009-0009-0382-771X)
- Zhanwei Chen (ORCID: https://orcid.org/0000-0002-4195-9010)
- Zhi‐Min Liao (ORCID: https://orcid.org/0000-0001-6361-9626)
- Shaowei Yang (ORCID: https://orcid.org/0000-0001-5897-1908)
- Hao Jiang (ORCID: https://orcid.org/0000-0002-4388-6548)
- Hepeng Zhang (ORCID: https://orcid.org/0000-0003-0919-1221)
- He Zhi
Institutions
- Northwestern Polytechnical University (CN)
Publication Details
- Journal
- Chemical Communications
- Published
- 2025-11-25
- DOI
- https://doi.org/10.1039/d5cc06040k
- Citations
- 2
- Primary Topic
- Electrocatalysts for Energy Conversion
- Type
- article
- Field-Weighted Citation Impact
- 0.73