In situ electrochemical synthesis of atomically dispersed metal sites for efficient hydrogen evolution reaction
Why this work is in the frame
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Bibliographic record
Abstract
Abstract The development of efficient and robust non‐Pt and low‐Pt catalysts with equivalent or even superior performance to commercial Pt‐based catalysts for hydrogen evolution reaction (HER) is highly desired, but challenging, in the field of water electrolysis. Herein, we report a facile and cost‐effective in situ electrochemical approach for the synthesis of atomically dispersed metal sites including platinum (Pt), ruthenium (Ru), and palladium (Pd) on the polyaniline (PANI) support. The PANI exhibits not only high electrochemical conductivity but also efficient H + capture from hydronium ions, leading to the formation of protonated amine groups that can be easily electrochemically reduced to H 2 on atomically dispersed metal active sites. As an example, the atomically dispersed Pt sites anchored on carbon cloth‐supported PANI (PANI‐Pt/CC) demonstrate excellent activity and durability toward the HER. The mass activity of PANI‐Pt‐10/CC reaches 25 A mg Pt −1 , exhibiting a significant enhancement of 50‐fold compared to that of the commercial Pt/C (0.5 A mg Pt −1 ). Therefore, this study presents a universally applicable approach for the design of atomically dispersed metal sites/conducting polymer heterostructures for highly efficient catalysts toward HER and beyond.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| 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) | 0.000 | 0.000 |
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 it