MUMBAI, India, July 5 -- Intellectual Property India has published a patent application (202517057257 A) filed by De Nora Permelec Ltd., Kanagawa, Japan, on June 14, for 'positive electrode for chlorine generation electrolysis.'

Inventor(s) include Zaenal Awaludin; Kato Akihiro; Madono Akihiro; and Hayashida Toshikazu.

The application for the patent was published on July 4, under issue no. 27/2025.

According to the abstract released by the Intellectual Property India: "Provided is a positive electrode for chlorine generation electrolysis having a low overvoltage of chlorine generation and having an excellent chlorine generation efficiency, even when iridium (Ir) is not used. This positive electrode for chlorine generation electrolysis 10 comprises: a substrate 2 formed from titanium or a titanium alloy; and catalyst layer 5 having a first layer 5a disposed on the substrate 2 and a second layer 5b disposed on the first layer 5a. The first layer 5a contains respective oxides of ruthenium (Ru), tin (Sn), and zirconium (Zr), and the second layer 5b contains respective oxides of ruthenium (Ru) and titanium (Ti)."

The patent application was internationally filed on Nov. 20, 2023, under International application No.PCT/JP2023/041642.

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