Asahi Kasei Kabushiki Kaisha

Asahi Kasei Chemicals Corporation

Toshinori Hachiya

Tadashi Matsushita

Jun Koike

Akiyasu Funakawa

Takeaki Sasaki

Isao Morimoto

Yoshifumi Kado

Makoto Nishizawa

Kazuyuki Tsuchida

Takayuki Hata

Tsuyoshi Haneda

The electrolytic cell according to the present invention is an electrolytic cell including a cathode chamber, the cathode chamber including:

Electrolytic cell and electrolyzer

Provided is a cathode for electrolysis comprising a conductive substrate and a Ru element-containing catalyst layer on the conductive substrate, wherein in the catalyst layer, the ratio of the maximum intensity of the Ru 3d 5/2 peak appearing between 281.4 eV and 282.4 eV to the maximum intensity of the Ru 3d 5/2 peak appearing between 280.0 eV and 281.0 eV, in an X-ray photoelectron spectroscopic measurement is 0.45 or more.

Cathode for electrolysis and method for producing same, and electrolytic cell for electrolysis

An electrode for electrolysis includes a conductive substrate, a first layer formed on the conductive substrate, and a second layer formed on the first layer. The first layer contains at least one oxide selected from the group consisting of ruthenium oxide, iridium oxide, and titanium oxide. The second layer contains an alloy of platinum and palladium. The electrode for electrolysis shows low overvoltage and has excellent durability over a long period.

Electrode for electrolysis, electrolytic cell and production method for electrode for electrolysis

Provided is an electrolysis cell capable of suppressing the degradation of a cathode by the reverse current at the time of stopping electrolysis. According to an aspect of the invention, there is provided an electrolysis cell comprising an anode chamber, a cathode chamber, a partition wall separating the anode chamber from the cathode chamber, an anode installed in the anode chamber, a cathode installed in the cathode chamber, and a reverse current absorbing body having a substrate and a reverse current absorbing layer formed on the substrate and installed in the cathode chamber, in which the anode and the cathode are electrically connected and the cathode and the reverse current absorbing layer are electrically connected.

Electrolysis cell and electrolysis tank

The present invention provides an excellent durable cathode for hydrogen generation, which has a low hydrogen overvoltage and reduced dropping-off of a catalyst layer against the reverse current generated when an electrolyzer is stopped, and a method for producing the same. The present invention provides a cathode for hydrogen generation having a conductive base material and a catalyst layer formed on the conductive base material, wherein the catalyst layer includes crystalline iridium oxide, platinum and iridium-platinum alloy.

Cathode for hydrogen generation and method for producing the same

An electrode catalyst comprising a conductive carrier, and a mixture containing a particulate noble metal and at least one particulate rare-earth oxide, the mixture being supported on the conductive carrier wherein the particulate rare-earth oxide has an alkaline-earth metal as solid solution therein.

Growing community of inventors

Tokyo, Japan

Toshinori Hachiya