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Record W3108510106 · doi:10.1002/jrs.6042

Raman maps reveal heterogeneous hydrogenation on carbon materials

2020· article· en· W3108510106 on OpenAlexafffund
Bruno G. daFonseca, Sapanbir S. Thind, Alexandre G. Brolo

Bibliographic record

VenueJournal of Raman Spectroscopy · 2020
Typearticle
Languageen
FieldMaterials Science
TopicGraphene research and applications
Canadian institutionsUniversity of Victoria
FundersMitacsCanada Foundation for InnovationBritish Columbia Knowledge Development FundUniversity of Victoria
KeywordsRaman spectroscopyCarbon fibersMaterials scienceHomogeneity (statistics)Analytical Chemistry (journal)Carbon filmChemical engineeringChemistryNanotechnologyThin filmEnvironmental chemistryComputer scienceOpticsComposite material

Abstract

fetched live from OpenAlex

Abstract This work presents an application of Raman spectroscopy as a tool to investigate heterogeneity in the composition of carbon materials obtained electrochemically. A combination of Raman maps and histograms has been used to describe samples synthesized via wet chemistry. The results showed that a simple evaluation of an average spectrum or one single spectrum per sample would have hidden important compositional variations present in the film. The Raman maps revealed heterogeneous hydrogenation in different areas of the carbon films, whereas histograms described the statistical relevance of the classification of the different types of carbon materials. The effect of electrosynthesis parameters on the quality of the films was also investigated. As the deposition time increased, the carbon films showed higher homogeneity in their spatial composition. The nature of the electrolyte led to differences in film functionalization and on the degree of hydrogenation.

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)0.000
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 score0.004
Threshold uncertainty score0.533

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
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 head0.020
GPT teacher head0.281
Teacher spread0.261 · 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

Citations12
Published2020
Admission routes2
Has abstractyes

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