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Record W2911333954 · doi:10.1149/200231.0468pv

Novel Method for the Estimation of the Electroactive Pt Area

2002· article· en· W2911333954 on OpenAlexaff
Clive H. Bock

Bibliographic record

VenueECS Proceedings Volumes · 2002
Typearticle
Languageen
FieldEnergy
TopicElectrocatalysts for Energy Conversion
Canadian institutionsNational Research Council Canada
Fundersnot available
KeywordsAdsorptionChemistryCatalysisMetalElectrodeRedoxCrystalliteOxygen evolutionPlatinumElectrochemistryOxygenInorganic chemistryPhysical chemistryCrystallographyOrganic chemistry

Abstract

fetched live from OpenAlex

The (COOH)2 oxidation reaction was studied at potentials below which the oxygen evolution reaction (oer) takes place. Pt was found to catalyze the (COOH)2 oxidation reaction more strongly than Au, while Ru did not display any activity towards the (COOH)2 oxidation reaction. Furthermore, under rapid stirring conditions, the (COOH)2 oxidation reaction using Pt electrodes was shown to be purely activation controlled. Therefore, the (COOH)2 oxidation currents can be related to the electro-active Pt area, as shown for a range of polycrystalline, bulk metal Pt and Pt powder electrodes. The Pt surface area for multi-component catalyst systems can also be estimated by combining (COOH)2 oxidation data with the charge needed to oxidize adsorbed CO to CO2 (COads charge), as shown for a range of Pt and Ru containing powder electrodes. In fact, the combination of the two methods ((COOH)2 oxidation current and COads charge) can be used as an in-situ probe to estimate the fraction of Ru in the metallic state in the potential region where CO is adsorbed provided that the surface ratio of Pt vs. Ru is known.

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.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.001
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.508
Threshold uncertainty score0.419

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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.

Opus teacher head0.018
GPT teacher head0.240
Teacher spread0.222 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical

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".

Quick stats

Citations0
Published2002
Admission routes1
Has abstractyes

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