Targeting Chemical Morphology of Graphene Oxide for Self-Assembly and Subsequent Templating of Nanoparticles: A Composite Approaching Capacitance Limits in Graphene
Bibliographic record
Abstract
The chemical morphology of graphene oxide sheets (GO) is characterized by the presence of functional carboxylic groups (at the edges) and epoxy and hydroxyl groups (at basal plane). Using divalent calcium ions, this morphology is used to bind the sheets together into an exfoliated sheet assembly or compact multilayers by controlling the pH. The assembly provides a 3-D template where the adjacent GO sheets mechanically constraint the synthesis of nanomaterials. Using this template, nanoparticles are directly synthesized on the sheets with high density and uniform shape and size, without a capping agent. Both noble metal Au and Ag nanoparticles and inorganic CaCO 3 nanoparticles are synthesized. The formation of nanoparticles leads to local straining of the sheets, and the location of the nanoparticles coincides with the formation of radial wrinkles on the sheets. Further electrochemical capacitors made with GO–CaCO 3 composite shows capacitance values of 240 F/g, approaching the theoretical limits of 550 F/g, as the CaCO 3 nanoparticles act as spacers between the sheets preserving their surface area.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
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".