タングステンの溶解反応を用いたCuWO₄の作製

抄録

ABSTRACT

Attempts have been made to obtain copper tungstate (CuWO₄) powders by application of corrosion synthesis. The well-stirred solution with WO₄²⁻ ions which has been obtained by the dissolution of W in a hydrogen peroxide solution poured into the solution with Cu²⁺ ions by the dissolution of Cu in a nitric acid solution. The mixed solution was then dried and fired at temperature higher than 773 K. The XRD analysis of the fired powder obtained showed CuWO₄ particles with mean diameter of 0.7 μm. The synthesis of the CuWO₄ by dissolution and mixture of W and Cu is considered from electrochemical point of view.