Activity of MXene Single Flakes in situ using SECCM
Bibliographic record
Abstract
MXene are 2D carbides of transition metals, which are studied for their application in different fields, including electrocatalysis and energy storage. Ti3C2 is a MXene, which has shown activity for the hydrogen evolution reaction. We study the activity of Ti3C2 singles flakes, mixed single layer and multilayer, using SECCM and ex situ AFM. SECCM studies reveal differences in activity for different flakes. Our results show that multilayer flakes have a larger overpotential, possibly because of more difficult insertion of ions between layers compared to the reaction on the basal plane. We develop an in situ method for evaluating electrochemical surface area using known redox chemistry of Ti3C2. Contrary to AFM-derived surface area, it takes into account insertion between layers to properly understand the activity of multilayer flakes.
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How this classification was reachedexpand
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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".