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Record W2110283293 · doi:10.1021/jp067862s

Atomic-Scale View of Redox-Induced Reversible Changes to a Metal-Oxide Catalytic Surface:  VO<i><sub>x</sub></i>/α-Fe<sub>2</sub>O<sub>3</sub>(0001)

2007· article· en· W2110283293 on OpenAlex

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.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueThe Journal of Physical Chemistry C · 2007
Typearticle
Languageen
FieldChemical Engineering
TopicCatalysis and Oxidation Reactions
Canadian institutionsUniversity of Saskatchewan
FundersNorthwestern UniversityDivision of Materials ResearchArgonne National LaboratoryMaterials Research Science and Engineering Center, Harvard UniversityU.S. Department of EnergyNational Science Foundation
KeywordsVanadiumCatalysisRedoxOxideVanadium oxideOxidation stateAdsorptionX-ray photoelectron spectroscopyMetalAtomic unitsInorganic chemistryChemistryMaterials scienceTransition metalCatalytic cyclePhysical chemistryAnalytical Chemistry (journal)Chemical engineering

Abstract

fetched live from OpenAlex

High Resolution Image Download MS PowerPoint Slide X-ray standing wave (XSW) analysis and X-ray photoelectron spectroscopy are used to trace the electronic and atomic-scale structural changes of a supported vanadium oxide system at different stages of its oxidation−reduction cycle. Both the oxidation state and adsorption geometry of the vanadium oxide and its α-Fe 2 O 3 (0001) single crystal support show reversible changes through the oxidation−reduction cycle characteristic of catalytic behavior. The 3D V atomic distribution maps, derived from the summation of the XSW measured Fourier components, reveal that the V undergoes adsorption site exchange during the oxidation and reduction cycle.

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 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)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow)
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 score0.002
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0010.000
Research integrity0.0000.001
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 head0.011
GPT teacher head0.237
Teacher spread0.225 · 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