Inorganic nanofibrous powders

NnF CERAM® – CeO2

Product description

Cerium dioxide nanofibrous powder is a novel kind of ceramic material produced by industrial production technology operated by Pardam, s.r.o. in the Czech Republic. This product is comprised fully of ceramic basis cerium oxide nanofibers with minor amount of porous particles of the same material. This nanofibrous material has excellent optical, electrical, magnetic, thermal and mechanical properties. Cerium dioxide have attracted a great deal of attention mainly in catalysis due to the excelent oxygen-storage properties of cerium. Cerium oxide also exhibits high ionic conductivity and serves as a very strong UV absorbent. The main benefit of nanofibrous structure is a high catalytic activity due to a high surface area and porosity.

Images


SEM image, magnification: 17000x
 
SEM image, magnification: 7000x

Physical properties

Crystal phase

 

Physical form and structure

Material characteristics

fiber structure polycrystalline nanofiber
typical fiber diameter 200-400 nm
fiber length* 2 to hundreds of μm
specific surface area 30 m2/g
crystal phase cubic
typical size of crystallites 24 nm
physical form yellow powder
  Strong UV absorbent | Oxidation/reduction environment change Ce3+/Ce4+ | Catalyst with high oxygen storage/release capability | Selective oxidation | High electric conductivity of Ce3+ | Less stable than Ce/Zr bi-oxide

* Producer can modify the fiber length to different values in accordance to customers requests and application. Please feel free to contact us for more information.

Applications

Automotive combustion sensor and controller for catalytic convertors | Advanced catalyst support for hot gas desulfurization | Infrared filters | Catalyst | Solid oxide fuel cell.

 

 

NnF CERAM - CeO2

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