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PGM-Free Catalysts Near the Sabatier Optimum
A curated catalyst screen for non-PGM HER candidates that should be evaluated by binding-energy distance, evidence count, synthesis route, and supply risk.
Search intent
Find PGM-free HER catalysts that are plausibly close to the Sabatier activity peak.
Inclusion rules
- No Pt, Pd, Ir, Ru, Rh, or Os
- HER-relevant surface or literature role
- Evidence suitable for follow-up electrochemical validation
Indexing posture
This is a hand-selected query page. Related filters should canonicalize here or remain non-indexed unless they earn their own registry entry.
Ranked list
Candidate Materials
| Candidate | Role | Stability | Synthesis | Patent Density | Supply Risk | Why It Matters |
|---|---|---|---|---|---|---|
| Cu3SbS4 | Sulfide HER candidate | Medium to high | Medium | Low to medium | Medium | Good example of a non-obvious PGM-free sulfide candidate. Evidence: Catalyst screen plus sulfide literature |
| Ni3P | Phosphide benchmark | High | High | Medium | Medium | Practical non-PGM baseline for phosphide screens. Evidence: HER phosphide literature |
| MoS2 | Layered chalcogenide benchmark | High | High | High | Medium | Canonical edge-site comparator for PGM-free designs. Evidence: Chalcogenide HER literature |
| FeS2 | Low-cost sulfide comparator | High | High | Low to medium | Low | Useful low-cost floor for candidate triage. Evidence: Pyrite and sulfide catalyst literature |
Related screens
Application Pages
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