Enhancing Hydrogen Generation by Anodic Oxidation of Urea over Superb Hydrophilic Hierarchical Ni, S co‐Doped Co<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub> Nanosheets
Surface wettability are of great significance to electrocatalysts for various electrochemical reaction. In this work, Ni, S co-doped Co<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub> nanosheets on Ni foam (Ni-S-Co<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub> NSs) with high hydrophilicity and hierarchical structure are synthesized. The doping of S is the key factor to achieve an ultrahigh hydrophilic surface, identified by the contact angle measurement. As except, the as-prepared Ni-S-Co<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub> NSs display prominent activity for urea oxidation reaction (UOR), which reach the current density of 10 mA cm<sup>-2</sup> at a low potential of 1.28 V (vs. reversible hydrogen electrode, RHE) with excellent stability. Remarkably, when paired with Ni-Mo electrode to fabricate overall urea electrocatalysis device, a cell potential of mere 1.33 V is required to afford the current density of 10 mA cm<sup>-2</sup>, making the Ni-S-Co<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub> NSs an outstanding UOR electrocatalyst for efficient hydrogen production.
Authors
- Yijie Zhong (ORCID: https://orcid.org/0000-0003-4944-6196)
- Weitao Wang (ORCID: https://orcid.org/0000-0003-3191-3980)
- Yating Wan
- Jing Zhang (ORCID: https://orcid.org/0000-0002-4706-8630)
- Enlai Hu
- Jinghu Lou
- Yuyang Liu (ORCID: https://orcid.org/0009-0006-3760-8230)
- Yurun Tong
Institutions
- Zhejiang Normal University (CN)
- Zhejiang Lab (CN)
- Hangzhou Wanxiang Polytechnic (CN)
Publication Details
- Journal
- Chemistry - An Asian Journal
- Published
- 2025-06-13
- DOI
- https://doi.org/10.1002/asia.202500608
- Primary Topic
- Electrocatalysts for Energy Conversion
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China