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Product Code M2407A1-50g
Price $173 ex. VAT

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Bismuth Oxide (Bi2O3) Nanopowder/Nanoparticles, ~ 130 nm, >99.99% purity

High purity bismuth oxide (Bi2O3) powder for applications in sensors, optical coatings, and anode materials for LIBs

Bismuth oxide has five polymorph modifications, known as α-, β-, γ-, δ-, and ε-Bi2O3. The monoclinic form α phase of ambient temperature and the δ phase of high temperature are both structurally stable. At a temperature higher than 710 °C, α phase is converted into the cubic δ phase that has a defective structure with random oxygen vacancies. The others are high-temperature metastable phases. Each polymorph possesses distinct crystalline structures and physical properties. γ-Bi2O3 phase, having the sillenite structure, is optically active in electro-optic devices. At 300 K, the band gap of monoclinic α-Bi2O3 is equal to 2.85 eV, while that of tetragonal β-phase is 2.58 eV.

High Purity High purity bismuth oxide (Bi2O3)

High Purity

High purity bismuth oxide (Bi2O3) > 99.99% powder

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Low price 1304-76-3

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Low price bismuth oxide (Bi2O3)

versatile use of 1304-76-3


Applications in sensors, optical coatings, and anode materials for LIBs

Bismuth oxide shows great potential as anode materials for lithium-ion batteries (LIBs), owing to its high theoretical capacity of 690 mA h g−1. Furthermore, CQD−Bi2O3 composite exhibited good electrochemical activity and delivered a discharge capacity as high as 1500 mA h g−1 at 0.2 C rate. The supercapacitor properties of the CQD−Bi2O3 composite electrode revealed good reversibility and a high specific capacity of 343 C g−1 at 0.5 A g−1 in 3 M KOH. The asymmetric device using the CQD−Bi2O3  and reduced graphene oxide as the binary anode materials delivered a maximum energy density of 88 Wh kg−1 at a power density of 2799 W kg−1, while the power density reached a highest value of 8400 W kg−1 at the energy density of 32 Wh kg−1.


  • A Short Review on Biomedical Applications of Nanostructured Bismuth Oxide and Related Nanomaterials, M. Bartoli et al., Materials, 13(22), 5234 (2020); DOI: 13(22), 5234.
  • The Molecular Structure of Bismuth Oxide by Raman Spectroscopy, D. Franklin et al., J. Solid State Chem., 97, 319-331 (1992); DOI: 10.1016/0022-4596(92)90040-3.
  • Ferroelectricity in layered bismuth oxide down to one nanometer, Q. Yang et al., Science, 379 (6638), 1218-1224 (2023); DOI: 10.1126/science.abm5134.
  • Deposition and characterisation of bismuth oxide thin films, V. Fruth et al., J. Eur. Ceram. Soc., 25, 2171–2174 (2005); DOI: 10.1016/j.jeurceramsoc.2005.03.025.
  • Structural and optical characteristics of bismuth oxide thin films, L. Leontie et al., Surf. Sci., 507-510, 480-485 (2002);
  • From molecules to bismuth oxide-based materials: Potential homo- and heterometallic precursors and model compounds, M. Mehring, Coord. Chem. Rev., 251, 974-1006 (2007); DOI: 10.1016/j.ccr.2006.06.005.
  • Structural defects on converted bismuth oxide nanotubes enable highly active electrocatalysis of carbon dioxide reduction, Q. Gong et al., Nat. Commun., 10, 2807 (2019); DOI: 10.1038/s41467-019-10819-4.
  • Two-Dimensional Bismuth Oxide Heterostructured Nanosheets for Lithium- and Sodium-Ion Storages, J. Mei et al., ACS Appl. Mater. Interfaces, 11 (31), 28205–28212 (2019); DOI: 10.1021/acsami.9b09882.
  • Carbon Quantum Dot-Anchored Bismuth Oxide Composites as Potential Electrode for Lithium-Ion Battery and Supercapacitor Applications, ACS Omega, 4 (3), 4943–4954 (2019); DOI: 10.1021/acsomega.8b03490.
  • Revealing Bismuth Oxide Hollow Nanoparticle Formation by the Kirkendall Effect, K. Niu et al., Nano Lett., 13, 5715−5719 (2013); DOI: 10.1021/nl4035362.

Technical Data

CAS Number 1304-76-3
Chemical Formula Bi2O3
Molecular Weight 465.96 g/mol
Chemical Name Bismuth oxide
Synonyms Bismuth Trioxide / Bismuth (III) Oxide, Bismite
Classification / Family 2D semiconducting materials, nanomaterials, Solid lighting, metal oxides
Colour Off-white powder

Bismuth Oxide (Bi2O3) Nanopowder

Product Code M2407A1
Average Particle Size (APS) ~ 130 nm
Specific Surface Area (SSA) 4.0 – 6.0 m2/g
Melting Point 817 °C (lit.)
Density 8.9 g/cm³
Morphology Spherical
Purity  > 99.99%

MSDS Documents

Bismuth Oxide Nanopowder MSDSBismuth Oxide Nanopowder MSDS Sheet

Pricing Table

Product Code Weight Price
M2407A1 50 g £138
M2407A1 100 g £225
M2407A1 100 g £450

*For larger orders please email us to discuss prices

To the best of our knowledge the information provided here is accurate. The values provided are typical at the time of manufacture and may vary over time and from batch to batch. Products may have minor cosmetic differences (e.g. to the branding) compared to the photos on our website. All products are for laboratory and research and development use only.

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