Conductive Polymer-Titania Photocathode Development for Hydrogen Production
Bibliographic record
Abstract
Polybithiophene and polybithiophene-titania films were electropolymerized under galvanostatic conditions on carbon fibre paper substrates and tested under AM1.5G conditions in 0.5 mM H2SO4 in order to evaluate their catalytic performance, their photonic conversion efficiency, as well as their Faradaic photoelectrochemical performance for hydrogen generation. The electrochemical data indicates that the films were stable and showed promise as a viable photocathode material as they significantly reduced the cathodic overpotential needed to promote hydrogen generation up to a current density of 75 µAcm-2. The photonic efficiency was low and showed a maximum incoming photonic conversion efficiency (IPCE) at a current density of 240 µAcm-2. Substrate considerations such as sub-micron architectural variables should be further investigated alongside film thickness and nanoparticle composition to optimize the photonic and catalytic performance.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".