Data · dataset · 2026
Preparation of Fe-Co Co-Doped MoS2 Catalysts for Electrocatalytic Hydrogen Evolution
Listed in ScienceDB
A series of Fe-Co co-doped MoS2 hydrogen evolution reaction (HER) catalysts (Fe-Co/MoS2) were constructed by the hydrothermal method.
Description
XRD, XPS, TEM, EDS, and SEM confirmed that Fe/Co were successfully embedded into the MoS2 lattice and induced lattice expansion. The HER performance of Fe-Co/MoS2 was systematically evaluated by LSV, CV and EIS in 1 mol·L−1 KOH electrolyte.
The results showed that when the mass ratio of Fe, Co and Mo was 15:5:80 (Fe3Co1/MoS2), the catalyst exhibited the best comprehensive HER performance: overpotential of 160.95 mV (−10 mA·cm−2), Tafel slope of 155.31 mV·dec−1, double-layer capacitance of 1.03 mF·cm−2, and a significant reduction in charge transfer resistance. DFT calculations indicated that the Fe-Co co-doping optimized ΔGH* from −2.51 eV (Co/MoS2) to −1.55 eV, significantly approaching thermoneutrality.
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Both experiments and theory confirmed that the synergistic effect regulated the lattice parameters, simultaneously optimizing the density of active sites and the thermodynamics of hydrogen adsorption, significantly enhancing the intrinsic HER activity in alkaline media.
Links
Where it is published
- DOI doi.org/10.57760/sciencedb.42580 ↗
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 69% · Density functional theory 65%
Provenance · 1 source records, 11 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| ScienceDB | 10.57760/sciencedb.42580 | 12 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| concepts[field].anzsrc:group:4004 | enrichment · scidb cn | taxonomy-embedding@1.0.0 | title+keywords+description (69%) |
| 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 |