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Record W2010833316 · doi:10.1021/cg901145d

Effect of Solvent on the Crystal Growth of One-Dimensional ZrO<sub>2</sub>−TiO<sub>2</sub> Nanostructures

2010· article· en· W2010833316 on OpenAlex
Rahima A. Lucky, Ruohong Sui, John M. H. Lo, Paul A. Charpentier

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.
fundA Canadian funder is recorded on the work.

Bibliographic record

VenueCrystal Growth & Design · 2010
Typearticle
Languageen
FieldMaterials Science
TopicMesoporous Materials and Catalysis
Canadian institutionsWestern University
FundersNatural Sciences and Engineering Research Council of Canada
KeywordsSolventNanomaterialsNanorodChemical engineeringBimetallic stripSupercritical fluidMaterials scienceCrystallizationDielectricSolubilityNanocrystalNanostructureSupercritical carbon dioxideCrystal growthNanotechnologyChemistryOrganic chemistryCrystallographyCatalysis

Abstract

fetched live from OpenAlex

Previously we reported the synthesis of unique nanotubular bimetallic oxides, ZrO 2 −TiO 2, in supercritical carbon dioxide (scCO 2 ). This study examines the role of the solvent on crystal growth by synthesizing the bimetallic nanomaterials using several common sol−gel solvents of varying dielectric strength, including scCO 2, hexane, xylenes, isopropanol, and ethanol. During synthesis, the gelation times, t g, were measured. After synthesis, all materials were dried similarly in scCO 2 to remove the effect of synthesis from drying. The synthesized materials were subsequently characterized by several physicochemical techniques in order to assess the effect of the solvent on the morphology, porous structure, and thermal and crystallization behavior of the nanomaterials. Gelation times were found to follow a direct relationship with the dielectric constant of the solvent. Formation of nanotubular structure was found with scCO 2, whereas the other solvents gave primarily nanorod structures. Theoretical calculations were also performed on determining the solubility parameters of the sol−gel starting materials and bimetallic hexamer intermediates, showing that nanostructure was enhanced by lower dielectric constant solvents.

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)0.003
metaresearch head score (Gemma)0.001
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
Metaresearch0.0030.001
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.000
Science and technology studies0.0000.001
Scholarly communication0.0000.000
Open science0.0010.000
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 head0.010
GPT teacher head0.213
Teacher spread0.203 · 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