What is GO?
Graphene Oxide (GO)
GO (graphene oxide) is an oxidized graphene-sheet material made by KMnO4/H2SO4 oxidation of graphite. Its oxygen-containing surface functionality gives strong polar-media dispersibility and a controllable oxidation/reduction platform for chemical transformation and graphene-like carbon restoration.
Technical owner: Aurexene Materials Engineering Team · Last updated: 2026-07-25
Jawaban singkat
GO (graphene oxide) is a single-layer oxidized carbon-sheet material made by KMnO4/H2SO4 oxidation of graphite.
Bukan apa
- GO is graphene oxide, not reduced graphene oxide or pristine graphene.
When Not to Use It
- Do not use GO when high electrical conductivity is required without a validated reduction step, or when oxygen-containing surface functionality is incompatible.
Intrinsic Screening Summary
- Identity screen
- Oxidized graphene carbon sheets with oxygen-containing functional groups; Single-layer oxidized graphene sheets, supplied as powder or dispersion
- Intrinsic feature
- KMnO4 dosage controls oxidation level. Chemical reduction removes oxygen functionality and restores a graphene-like conjugated carbon structure.
- Material-level integration
- GO disperses in polar solvents. Select water or a compatible polar solvent, then control solids, pH, mixing, drying, and reduction history. Preserve the intended oxygen content through dispersion and processing; use reduction only where restoration of graphene-like carbon structure is required.
Kesesuaian aplikasi
Selection & Validation Framework
| Decision Question | Jawaban pada tingkat material |
|---|---|
| Integration and processing criteria | Required for: Conductive Materials, Material Pelindung EMI, Energy Storage, and Carbon Dispersion. Measure: surface resistance; volume resistance; resistance uniformity; particle distribution; settling; redispersion; storage stability; moisture exposure. Sample state: final host formulation or part state. Failure signals: Loss of dispersion stability; Uncontrolled reduction or oxygen-content change; Restacking during drying or processing. |
Material Identity & Specification Status
Nilai densitas dan kemasan yang disetujui belum dipublikasikan; konfirmasikan saat penawaran atau peninjauan sampel.
| Sifat | Nilai |
|---|---|
| Composition | Oxidized graphene carbon sheets with oxygen-containing functional groups |
| CAS / identity | 2640657-49-2 |
| Particle size | Single carbon-layer thickness; lateral size is process-defined |
| Morfologi | Single-layer oxidized graphene sheets, supplied as powder or dispersion |
| Kemurnian | Oxygen-functional graphene oxide; oxidation level is controlled through KMnO4 use |
| Penyimpanan | Untuk serbuk, simpan kering dan tertutup; lindungi dispersi dari penguapan dan kontaminasi |
Why It Works
| Struktur | Fungsi | Mekanisme |
|---|---|---|
| Single-layer oxidized carbon sheets produced from graphite, with oxygen-containing groups distributed across the sheet framework. | Oxygen functionality enables polar-media dispersion, selective oxidation chemistry, non-metal catalysis, functionalization, and use as a reduction precursor. | KMnO4 dosage controls oxidation level. Chemical reduction removes oxygen functionality and restores a graphene-like conjugated carbon structure. |
Compare Material Routes
| Material / Route | Decision Boundary |
|---|---|
| rGO | GO offers an oxygen-functional, polar-dispersible sheet platform for reaction, assembly, and later reduction. Reduction changes the oxygen content and restores graphene-like carbon structure, so GO and rGO serve different chemistry and processing roles. |
Technical Guides
| Technical Guide | Summary |
|---|---|
| Why Carbon Black, CNT, Graphene, and Expanded Graphite Require Different Dispersion Strategies | Why Carbon Black, CNT, Graphene, and Expanded Graphite Require Different Dispersion Strategies — panduan rekayasa berbasis metode untuk Conductive Plastics & Coatings yang membahas perilaku struktur–fungsi pada batas material, antarmuka, dan sistem akhir, beserta batas proses, validasi, dan kualifikasi. |
| How to Distinguish GNP, GO, rGO, Ionic-Liquid Exfoliated Graphene, and 3D Graphene | A material-native graphene family map that separates chemical identity, sheet or network architecture, oxidation and defect state, supplied form, functional role, processing risk, first screen, and evidence required. |
Commercial Availability
Supplier role: Request confirmation
Supply status: Request confirmation
Sample status: Sample availability requires confirmation
Commercial details are not published until the source and verification fields are complete and the Supplier Data Packet is signed by the sales owner, technical reviewer, and resource/compliance owner. Request current grade, form, sample, packaging, and delivery confirmation.
Dokumen dan permintaan
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Lembar data teknis
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Lembar data keselamatan
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Grade, Sample & Qualification Support
The Aurexene Materials Engineering Team can review the required form, host system, formulation or process, target, sample quantity, volume and timeline, and the grade-specific evidence needed before qualification.
Review Kemampuan laboratorium for sample evaluation and qualification support, or Kemampuan produksi for scale-up, quality, documentation, and supply support.
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