Effect of Lithium Sulfate on the Catalytic Activity of Pt for Hydrogen Oxidation Reaction
Bibliographic record
Abstract
The effect of Lithium sulfate on the hydrogen oxidation reaction (HOR) in 0.1 M H2SO4 electrolyte was investigated on flat Pt electrode. The Li+ concentration solutions of 0, 10, 25 and 32 g l−1 were studied using cyclic voltammetry and rotating disk electrode (RDE) techniques. The obtained results demonstrate a good repeatability and confidence in analysis method, to understand the influence of lithium sulfate on HOR for an electrocatalysis system. The electrochemical surface area, limiting current and kinetic parameters were measured and analysed using Koutecky-Levich and Tafel representations to investigates the different types of lithium sulfate interactions on the catalytic properties of Pt. In presence of Li2SO4, the H+ adsorption/desorption process, species mass-transport and kinetic current density are reduced. Furthermore, the Tafel’s slope analyse show a change of the rate-determining steps for HOR mechanism. More detailed results of the kinetic analysis and lithium impact on the studied systems are discussed in this work.
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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 | 0.001 |
| 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) | 0.002 | 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 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".