A Kinetic Study of the Oxygen Reduction Reaction at LaSrMnO[sub 3]-YSZ Composite Electrodes
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
The primary focus of this paper is on the establishment of reliable methods for the determination of the mechanism and kinetics of the oxygen reduction reaction (ORR) at solid oxide fuel cell cathodes consisting of lanthanum strontium manganite in a 50 vol % mixture with yttria-stabilized zirconia electrolyte (LSM-YSZ composite). Techniques used include half-cell cyclic voltammetry and electrochemical impedance spectroscopy (EIS) methods in a variable atmosphere at temperatures ranging from 600 to 900°C. The exchange current densities for the ORR, determined both from the low and high field cyclic voltammetry data and from the charge-transfer resistance from EIS data, are shown to agree closely, yielding an apparent activation energy of ca. 120 kJ/mol for the ORR at these composite cathodes. No evidence for diffusion-controlled reactions is seen under the conditions of our work. In this paper we also show the theoretically predicted impact of temperature on the Tafel slope, as well as on the potential range over which the low- and high-field approximations, are valid. © 2005 The Electrochemical Society. All rights reserved.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.001 | 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 | 0.001 | 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