Optimizing Electrocatalytic Hydrogen Evolution Stability via Minimal Bubble Adhesion at Electrodeposited Crack‐Structured NiP x Catalysts
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In response to the ongoing energy crisis, advancing the field of electrocatalytic water splitting is of utmost significance, necessitating the urgent development of high‐performance, cost‐effective, and durable hydrogen evolution reaction catalysts. But the generated gas bubble adherence to the electrode surface and sluggish separation contribute to significant energy loss, primarily due to the insufficient exposure of active sites, thus substantially hindering electrochemical performance. Here, we successfully developed a superaerophobic catalytic electrode by loading phosphorus‐doped nickel metal (NiP x ) onto various conductive substrates via an electrodeposition method. The electrode exhibits a unique surface structure, characterized by prominent surface fissures, which not only exposes additional active sites but also endows the electrode with superaerophobic properties. The NiP x /Ti electrode demonstrates superior electrocatalytic activity for hydrogen evolution reaction, significantly outperforming a platinum plate, displaying an overpotential of mere 216 mV to achieve a current density of −500 mA cm −2 in 1 M KOH. Furthermore, the NiP x /Ti electrode manifests outstanding durability and robustness during continuous electrolysis, maintaining stability at a current density of −10 mA cm −2 over a duration of 2000 h. Owing to the straightforward and scalable preparation methods, this highly efficient and stable NiP x /Ti electrocatalyst offers a novel strategy for the development of industrial water electrolysis.
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The cracks in NiPx on Ti mesh increase bubble contact angle from 138° to 152° and reduce adhesion force from 42 μN to virtually 0.
“These cracks can not only significantly increase the bubble contact angle (increased from 138° to 152°) and reduce the adhesion forces (decrease from 42 μN to virtually 0) on the catalyst surface”
From Advances in Surface/Interface Engineering of Under-Water Superaerophobic Electrodes for Hydrogen Evolution Reaction by Manipulating of Bubbles (2026) · cites this paper as [68]
NiPx deposited on Ti mesh for 4 h spontaneously forms surface cracks, whereas deposition for 15 min does not.
“They found that comparing with the electrode deposited for 15 min, the NiPx on the surface of the sample deposited for 4 h would spontaneously form cracks (Fig. 10b).”
From Advances in Surface/Interface Engineering of Under-Water Superaerophobic Electrodes for Hydrogen Evolution Reaction by Manipulating of Bubbles (2026) · cites this paper as [68]
The cracked NiPx electrode produces H2 bubbles much smaller than those on Pt plate and bare Ti mesh and reduces overpotential.
“making the generated H2 bubbles much smaller than those on Pt plate and bare Ti mesh, but also reduce the overpotential.”
From Advances in Surface/Interface Engineering of Under-Water Superaerophobic Electrodes for Hydrogen Evolution Reaction by Manipulating of Bubbles (2026) · cites this paper as [68]
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- Authors
- Sun, Q., Hao, X., Zhang, D., Zhang, T., Zhao, Y., Huang, X., & Liu, X.
- Affiliations
- Northwestern Polytechnical University (CN)
- Shenzhen University (CN)
- Chinese Academy of Sciences (CN)
- Corresponding author
- Zhao, Yuanfang
- Huang, Xiaolei
- Liu, Xuqing
- Venue
- ENERGY & ENVIRONMENTAL MATERIALS
- Publisher
- Wiley
- Published
- 2024-04-20
- Volume
- 7
- Issue
- 5
- ISSN
- 2575-0348 (ISSN-L)
- 2575-0356
- OpenAlex
- W4394976310
- Cited by
- 24
- References
- 49
- Citations by year
- 2026: 6 · 2025: 14 · 2024: 4
- FWCI
- 1.60
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Locations
- Energy & environment materials (publishedVersion, cc-by)
- Funders
- National Natural Science Foundation of China (52375204)
- Fundamental Research Funds for the Central Universities (0604023SH0201079, 0604023GH0202079)
- Topics
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › CO2 Reduction Techniques and Catalysts
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Fuel Cells and Related Materials
- Keywords
- hydrogen evolution reaction, electrocatalysis, bubble adhesion, superaerophobic surfaces, electrodeposition, titanium substrate, water electrolysis, catalyst stability, active site exposure
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