Free AEROXIDE® Alu Sample for Catalysts

Evonik is part and partner for catalyst innovation. Our AEROXIDE® fumed alumina are well-established inorganic oxides for various catalyst applications, and we provide individual technical support for customers. Interested? Order a free sample on this page.

Alumina for catalysts

Aluminum oxide supports play a crucial role in catalysts, particularly in high-temperature applications. Key examples include the reverse water-gas shift process, reforming processes, and automotive emission control.

Advantages of Evonik’s AEROXIDE® fumed aluminum oxides

• Very high chemical purity for consistent catalyst reactions.
• Exceptional structural stability at extreme temperatures without doping.
• Narrow pore size distribution allows for the optimization of the catalyst’s microarchitecture.
• Excellent thermal stability in the catalyst enables higher working temperatures.

AEROXIDE® Alu aluminum oxides are available in a range of different specific surface areas and crystal structures.

We recommend AEROXIDE® Alu 130 for testing because it has a very high specific surface area of 130 m²/g and is suitable for a broad range of applications.

Different to conventional methods such as the traditional Bayer or the Ziegler process, Evonik prepares AEROXIDE® Alu aluminum oxide in a special flame hydrolysis process from very pure starting materials. This process leads to consistently high purity levels and tailored particle design. AEROXIDE® Alu products are at least 99.7% pure aluminum oxide. Their exceptional structural stability at extreme temperatures makes them ideal for high-temperature catalyst applications like reverse water-gas shift reactions, reforming processes, and automotive emission control.

Evonik’s AEROXIDE® alumina are composed of agglomerated aggregates with an open fractal structure. This is different from the commonly dense aluminum oxide particles available on the market. The agglomerated structure of AEROXIDE® aluminum oxides can be broken up by high energy powder mixing or dispersion processes to yield particles of submicron size. These can be used in coatings, e.g., wash coats in automotive catalysts or micro-structured reactors.

For customers without high energy mixing equipment available, AERODISP® water-based dispersions of fumed aluminum oxide offer an alternative to AEROXIDE® Alu powder products.