Data · dataset · 2026
Phosphorus Vacancy-Engineered Ru,Pv–CoP as a Hydrogen Spillover Catalyst for Enhanced Industrial Alkaline Water Electrolysis
Listed in ScienceDB
Developing industrial-grade electrocatalysts based on the hydrogen spillover (HSo) mechanism is a key approach for translating lab-scale performance into industrial applications.
Description
Herein, a novel HSo catalyst (Ru,Pv–CoP/CF) was constructed by introducing phosphorus vacancies (Pv) into a CoP support decorated with Ru nanocrystals (Ru NCs) and Ru single atoms (Ru SAs) via defect-engineering strategy. The creation of Pv modulates the interfacial properties between Ru species and CoP, enabling electronic coupling between Ru and Co through phosphorus bridging and forming a “Ru–Co” donor-acceptor electron pair.
Multidimensional in-situ electrochemical measurements reveal that Pv accelerates the polarization/dissociation of water molecules and the capture/migration of adsorbed hydrogen (H*). Further DFT calculations underscore that Pv narrows the work function difference between Ru NC and RuSA–CoP, which enhances the electron supply from Ru NC to Co, thereby triggering an efficient H* cross-phase transmission. Specifically, Ru NCs primarily facilitate H2O dissociation, and the generated H* subsequently spillover to adjacent Co sites for H2 desorption.
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Benefiting from the Pv–mediated relay catalysis, the Ru,Pv–CoP/CF catalyst exhibits top-level HER properties in 1.0 M KOH, requiring only 86 mV at an industrial current density of 1.0 A cm−2 with exceptional durability over 1200 h. This work advances the fundamental understanding of vacancy-guided HSo mechanism, providing unique insights for designing transition metal phosphides-based electrocatalysts for industrial alkaline water electrolysis.
Links
Where it is published
- DOI doi.org/10.57760/sciencedb.43562 ↗
DOI / persistent id · from scidb cn
Catalogue records · 1
- OAI-PMH record scidb.cn/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=10.57760%2… ↗
metadata API · from scidb cn
Topics
- From keywords
- Earth & Environmental Science · Engineering · Humanities · Life Sciences · Social Science
- Inferred from text
- Chemical engineering 70% · Density functional theory 65%
Provenance · 1 source records, 12 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| ScienceDB | 10.57760/sciencedb.43562 | 10 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].anzsrc:group:4004 | enrichment · scidb cn | taxonomy-embedding@1.0.0 | title+keywords+description (70%) |
| concepts[field].local:field:earth-environmental | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:engineering | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:humanities | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:social-science | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[method].local:method:dft | enrichment · scidb cn | keyword-concept-rules@1.0.0 | title+description (65%) |
| description | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/description |
| license_text | source · scidb cn | connector:scidb_cn@1.0.0 | |
| publication_date | source · scidb cn | connector:scidb_cn@1.0.0 | |
| title | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/title |