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Design and Modification of TiO<sub>2</sub> Nanostructured Photocatalysts Using Scanning Electrochemical Microscopy-Based Techniques Coupled with Optical Spectroscopy

2025· article· en· W4412160642 on OpenAlexafffund
Joshua van der Zalm, Emmanuel Mena‐Morcillo, Tony Shi, Muhanad Al-Jeda, Aicheng Chen

Bibliographic record

VenueACS electrochemistry. · 2025
Typearticle
Languageen
FieldMaterials Science
TopicElectronic and Structural Properties of Oxides
Canadian institutionsUniversity of Guelph
FundersNatural Sciences and Engineering Research Council of CanadaCanada Foundation for Innovation
KeywordsMaterials scienceScanning electrochemical microscopySpectroscopyElectrochemistryNanotechnologyMicroscopyOptical microscopePhotocatalysisScanning electron microscopeChemical engineeringOptoelectronicsOpticsChemistryCatalysisComposite materialElectrodePhysicsOrganic chemistry

Abstract

fetched live from OpenAlex

High Resolution Image Download MS PowerPoint Slide In situ techniques for the screening of new nanomaterials and nanocomposites can improve and expedite the development of photocatalysts and electrocatalysts. By combining scanning electrochemical microscopy-based techniques with optical spectroscopy, we modified TiO 2 thin films with Au nanoparticles and investigated insights associated with their photoenhancement. The TiO 2 coating was optimized utilizing this high-throughput strategy in terms of film thickness, crystallinity, and structure. It was found that 50 nm of sputtered Ti on FTO glass annealed at 550 °C for 5 h resulted in optimal optical properties and photocurrent responses. The photodeposition of Au nanoparticles on the TiO 2 surface was investigated, which revealed that an optimized photocurrent response was achieved with 60 s of illumination. The coupled nanoparticle synthesis and in situ analysis enabled the rapid optimization of the deposition and monitoring through UV–vis spectroscopic, electrochemical, and photoelectrochemical techniques. This advanced approach will facilitate the high-throughput design of efficient photoelectrochemical catalysts for sustainable energy and clean environmental applications.

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 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 score0.045
Threshold uncertainty score1.000

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 head0.008
GPT teacher head0.248
Teacher spread0.239 · 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.

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

Citations1
Published2025
Admission routes2
Has abstractyes

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