Blue Tungsten Oxide (WO2.9), 50-300nm, 1 kgProduct Type: Inorganic nanopowder
Research-grade laboratory product
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LABORATORY PROCUREMENT SUPPORT
For model selection, material form, dimensional range, concentration or package confirmation, contact our technical sales team.
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
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How does the oxygen deficiency in WO2.9 affect its electrochemical performance compared to stoichiometric WO3 for lithium-ion battery anodes?
The oxygen-deficient WO2.9 phase introduces mixed-valence states (W5+/W6+) that enhance electronic conductivity and lithium-ion intercalation kinetics relative to fully stoichiometric WO3. This product is specified as a dark blue powder with a particle size of 50-300 nm and a purity of ~99% (99.9% stated elsewhere), which supports consistent electrochemical behavior in anode formulations. The nanoscale size range increases surface area for charge transfer, but the exact capacity and cycling stability depend on electrode preparation and electrolyte compatibility.
Can Blue Tungsten Oxide (WO2.9) nanopowder be directly dispersed in aqueous or organic solvents for thin-film deposition without additional surfactants?
The product is supplied as a dry inorganic nanopowder with no specified solvent or surface treatment, so direct dispersion stability in aqueous or organic media may be limited without surfactants or sonication. The 50-300 nm particle size and dark blue appearance indicate a high surface energy typical of oxide nanopowders, which often requires optimization of pH or use of dispersants for uniform thin-film deposition. Compatibility testing with the target solvent system is recommended before scale-up.
What storage and handling precautions are required to prevent oxidation or moisture uptake of WO2.9 nanopowder during long-term laboratory use?
As a sub-300 nm inorganic nanopowder with oxygen deficiency, WO2.9 is susceptible to gradual oxidation to higher tungsten oxides and moisture adsorption if exposed to ambient air. The product should be stored in a sealed, dry container under inert atmosphere (e.g., argon or nitrogen) to preserve the reduced phase and dark blue appearance. The 1 kg package size necessitates careful aliquoting in a glovebox to avoid batch contamination, as no stabilizer or coating is indicated in the specification.
Technical evaluation of Blue Tungsten Oxide (WO2.9) as a research-grade nanopowder with a broad particle size distribution and conflicting purity specifications, necessitating careful characterization prior to application.
Positive
- Specific oxygen-deficient phase: Blue Tungsten Oxide (WO2.9) is a substoichiometric tungsten oxide with oxygen vacancies, offering distinctive electrochromic and photocatalytic properties compared to stoichiometric WO3.
- High purity specification: The product lists purity up to 99.9%, appropriate for research requiring minimal impurity interference.
Trade-offs
- Wide particle size distribution: The reported size range of 50–300 nm spans nearly an order of magnitude, which may introduce variability in size-dependent properties and require additional classification for uniform studies.
- Inconsistent purity specification: The product description lists both ~99% and 99.9% purity in different sections, requiring clarification before use in high-precision applications.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
