Polyphenols on Carbon Paper Electrodes: A Fundamental Study for Sustainable Electrochemical Energy Storage
Bibliographic record
Abstract
Promoting sustainable electrochemical energy storage can be achieved by employing biosourced organic molecules with redox-active motifs. Studies focusing on developing high-performance energy storage devices based on redox-active organic molecules often lack a clear understanding of the charge transfer mechanisms involving these molecules. Here, we report on a systematic study of the electrochemical behavior of biosourced polyphenols (pyrogallol, catechin, rutin, quercetin, and mangiferin) deposited on carbon paper electrodes in aqueous electrolytes, to gain insight into their charge transfer mechanisms and reveal possible relationships between (supra)molecular structure-electrochemical properties. We studied the effect on the electrochemical behavior of modified electrodes of mono/divalent metal cations (Li +, Na +, Mg 2+, Ca 2+, and Zn 2+ ) in the supporting electrolyte. Contact angle measurements were used to investigate the interface of the polyphenols with water and scanning electron microscopy to reveal their supramolecular structures at the surface of the carbon paper electrodes. Electrochemical studies were performed by cyclic voltammetry and electrochemical impedance spectroscopy. As proof of concept, electrodes based on polyphenols and sustainable conductive additives were studied in a three-electrode configuration for supercapacitor applications.
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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 | 0.001 | 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".