Y. Sakata et al., MODIFIED CARBOTHERMAL REDUCTION FOR THE SYNTHESIS OF ULTRAFINE PARTICLE TUNGSTEN COMPOUNDS DISPERSED IN A MICROPOROUS CARBON MATRIX, Journal of materials chemistry, 6(7), 1996, pp. 1241-1243
A selective, low-temperature carbothermal reduction (CTR) process with
metal ion-exchanged resin has been proposed The tungsten compounds pr
epared by this method consisted of ultrafine particles of around 10-20
nm:in diameter which were dispersed highly in the porous carbon matri
x; The new CTR process is applicable for any other metal elements, dep
ending on the combination of resin type, metal ionic species and heat
treatment conditions.