A production technology has been developed for nickel, cobalt and silver in the form of fine fibers witha developed specific surface, a small bulk weight, a high catalytic activity and chemical purity.

• The metal flament is up to 20 mm long and 300 µm or less thick. The specifc surface is

nickel wool – 1600–1800 cm²/g;

cobalt wool – 1400–1700 cm²/g;

silver wool – 1000–1100 cm²/g.

Density is 1-1.5 g/cm².

The wool can be used to form products of any shape and dimensions including catalysts in the form of pellets or plates.

Application of silver fibers as electrodes of oxygen sensors decreases the working temperature from 650 down to 350OC, allows partial replacement of platinum by silver to be made, and the recovery rate of the electromotive force in a cell to be reduced by a factor of two to fve.

APPLICATIONS OF METAL FIBERS

Ni,Co, Ag wool

• electrodes of high-temperature electrochemical devices;

• fillers of heat and current-conducting cements and ceramics;

• catalysts for organic synthesis processes.

Ag wool

• saturation of solutions with silver ions for impartment of antiseptic properties.