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Iron Oxide (Fe2O3) Powder

CAS Number 1309-37-1

Anode Materials, Battery Materials, Green Energy Materials

Product Code M2440A1-10g
Price £70 ex. VAT

Iron (III) Oxide Nanopowder with Various Polymorphs

Abundant anode material for energy storage applications

Overview | Product Information | Related Products

Iron Oxide (Fe2O3) powder, CAS number 1309-37-1, has a wide range of applications such as pigments, catalysts, and thermite. Iron (III) oxide has various polymorphs, predominantly α-Fe2O3 and γ-Fe2O3.

α-Fe2O3 has a rhombohedral crystal structure and occurs as hematite in nature. It exhibits antiferromagnetism below 260 K and weak ferromagnetism between 260 K to 950 K (Néel temperature). Recently, iron oxide has been applied as anode materials in Li-ion batteries, demonstrating high theoretical capacity (924-1007 mAh/g) during the lithiation processes. A hybrid electrode based on α-Fe2O3 and MnO2 operates stably in a wide range of voltage from −0.9 V to 0.9 V, with an energy density of 12.5 Wh/kg.

γ-Fe2O3 is known as the mineral maghemite, adopting a cubic crystal structure. It displays ferromagnetism at room temperature and originally finds application in recording tapes. Nanoparticles of γ-Fe2O3 incorporate with graphene for Li-ion battery anodes. The composite anodes exhibit high reversible capacity at 711 mAh/g, with capacity retention of 94% after 50 cycles.

green energy material

Green energy material

For battery research

Available in two crystalline phases

Available in two crystalline phases

α-Fe2O3 and γ-Fe2O3

Worldwide shipping

Worldwide shipping

Quick and reliable shipping

High purity

High purity

>99.55% High purity

General Information

CAS Number 1309-37-1
Chemical Formula Fe2O3
Full Name Iron (III) oxide
Molecular Weight 159.69 g/mol
Synonyms Ferric oxide, Hematite (α-Fe2O3), Maghemite (γ-Fe2O3), Iron trioxide
Classification or Family Battery materials, Electrodes, Anode materials

Iron (III) oxide Powder

Product Code M2440A1 M2440B1
Crystalline Phase α-Fe2O3 γ-Fe2O3
Average Particle Size 28 nm 18 nm
Purity > 99.60% > 99.55%
Morphology Spherical Spherical
Melting Point Tm = 1565 °C Tm = 1565 °C
Appearance Dark red/brown powder Dark orange/brown powder

MSDS Documentation

Iron oxide (Fe2O3) powderIron oxide (Fe2O3) powder MSDS Sheet


Product Code Product Details Quantity Price
M2440A1 α-Fe2O3 10g £70
M2440A1 α-Fe2O3 25g £140
M2440A1 α-Fe2O3 50g £225
M2440B1 γ-Fe2O3 10g £70
M2440B1 γ-Fe2O3 25g £140
M2440B1 γ-Fe2O3 50g £225


  1. Enhanced energy density of supercapacitors using hybrid electrodes based on Fe2O3 and MnO2 nanoparticles, G. Kim et al., Int. J. Electrochem. Sci., 12, 10015–10022 (2017); DOI: 10.20964/2017.11.44.
  2. γ‑Fe2O3 nanocrystalline microspheres with hybrid behavior of battery-supercapacitor for superior lithium storage, L.-L. Tian et al., ACS Appl. Mater. Interfaces, 7, 26284–2629 (2015); DOI: 10.1021/acsami.5b08756.
  3. Fe2O3 nanoparticles anchored on the Ti3C2Tx MXene paper for flexible supercapacitors with ultrahigh volumetric capacitanceY. Ma et al., ACS Appl. Mater. Interfaces, 12, 41410–41418 (2020); DOI: 10.1021/acsami.0c11034.

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