Permelec Electrode Ltd.

De Nora Permelec Ltd

Institute of National Colleges of Technology, Japan

Tomoyasu Shibata

Tsuneto Furuta

Yoshinori Nishiki

Masashi Hosonuma

Masaharu Uno

Masashi Tanaka

Tomohisa Suzuki

Noriyuki Kitaori

Kota Sekido

The present invention provides a membrane-electrode assembly which includes: at least one rod-form or tubular electrode; a tubular diaphragm disposed around the periphery of the electrode; and a wire-form counter electrode disposed around the periphery of the diaphragm, the diaphragm being fixed to the rod-form or tubular electrode with the wire-form counter electrode to thereby form an electrode chamber having a gas/liquid passage between the diaphragm and the rod-form or tubular electrode.

Membrane-electrode assembly, electrolytic cell employing the same, electrolytic-water sprayer, and method of sterilization

The present invention provides a conductive diamond electrode having: a conductive substrate; a coating layer formed on a surface of the conductive substrate, the coating layer containing one of a metal and an alloy each including at least one of niobium and tantalum; and a conductive diamond layer formed on a surface of the coating layer, and a process for producing the conductive diamond electrode.

Conductive diamond electrode and process for producing the same

The present invention provides an electrode for electrolysis including: a conductive substrate; and a conductive diamond formed on a surface of the conductive substrate, the conductive substrate having at least one surface shape selected from the group consisting of: (a) a surface shape of a combination of an Ra of 100-1,000-&#x3bc;m and an RSm of 50-10,000 &#x3bc;m; (b) a surface shape of a combination of an Ra of 2.5-100 &#x3bc;m and an RSm of 1.5-800 &#x3bc;m, and (c) a surface shape of a combination of an Ra of 0.01-2 &#x3bc;m and an RSm of 0.005-250 &#x3bc;m, and a process for producing the electrode.

Electrode for electrolysis and process for producing the same

A conductive diamond electrode including an electrode substrate comprising a material selected from the group consisting of a valve metal and an alloy based on the valve metal, at least a surface of the metal or alloy having been subjected to plasticization processing, or heat treatment in vacuum or inert atmosphere; and a conductive diamond film formed on the plasticization processed surface of the electrode substrate. When the electrode substrate is subjected to plasticization processing and heat treatment, peeling resistance of the conductive diamond film is improved, thereby an electrode life is prolonged.

Growing community of inventors

Fujisawa, Japan

Tomoyasu Shibata