Electrochemical Characterization of Carbon Films with Porous Microstructures
Bibliographic record
Abstract
This paper describes the structural and electrochemical characterization of porous carbon thin film electrodes formed via a recently developed film fabrication technique called glancing angle deposition (GLAD). The technique involves physical vapor deposition of thin films onto unheated substrates oriented at highly oblique angles to the vapor flux. The fabricated GLAD carbon thin film (GTF) electrodes have controllable porosity and microstructure on the 10 nanometer scale. The GTF surface structure was characterized by scanning electron microscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy. Electrochemical response of the GTF electrodes was investigated by cyclic voltammetry using several redox probes with known kinetic behavior on carbon surfaces. GTF electrodes were compared to the commonly used glassy carbon (GC) electrodes in order to evaluate their electrochemical performance. Overall, the GTF electrodes exhibited well-defined, peak shape voltammograms for all the redox systems investigated. The results presented demonstrate that GTF surfaces show higher faradaic and background currents than polished GC. This is attributed to the large exposed surface area (63 cm2/cm2) of the porous film. © 2003 The Electrochemical Society. All rights reserved.
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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".