Synthesis of Barium Hexaferrite and Catalytic Behavior in the Combustion of Methane

A. Favre , N. Guilhaume , A. Pierre

Barium hexaferrite doped with iridium was synthesized by two methods : the citrate gel and the polyacrylamide gel methods. The nature of phases obtained and the specific surface area were determined after heat treatments in air at 700°C, 900°C and in air containing 10% humidity at 1200°C. The catalytic activity in the combustion of methane was measured after heat treatment at 900°C. These hexaferrites showed a good catalytic activity after treatment at 900°C. However this catalytic activity and the specific surface disappeared after heat treatment at 1200°C.

Domaines: Articles anciens

A. Favre, N. Guilhaume, A. Pierre. Synthesis of Barium Hexaferrite and Catalytic Behavior in the Combustion of Methane. Journal de Physique IV Proceedings, 1997, 07 (C1), pp.C1-675-C1-676. ⟨10.1051/jp4:19971276⟩. ⟨jpa-00254988⟩