Proton-conductive electrode, process for producing the same, and electrochemical device

Abstract

A proton conducting electrode useful for a fuel battery is provided. The proton conducting electrode is comprised of a mixture including a fullerene derivative and an electron conducting catalyst, wherein the fullerene derivative is composed of carbon atoms forming fullerene molecules and a proton (H<+>) dissociating group introduced into said carbon atoms. This proton conducting electrode is manufactured by coating mixture containing the fullerene derivative and the electron conducting catalyst on a gas transmitting current collector.

Description

Technical field [0001] The present invention relates to a proton (H + ) Conductive electrode and its manufacturing method, and electrochemical device using the proton conductive electrode. Background technique [0002] It has been proposed that various electrochemical devices based on hydrogen decomposition reactions or chemical substances containing hydrogen atoms produce protons (H + ) And electrons, protons (H + ) Reacts with electrons to produce hydrogen, or protons (H + ), electrons and oxygen or another substance react to produce water or further substances, such as fuel cells or other proton-type batteries, or chemical sensors. [0003] Since electrons, protons, and other substances, such as hydrogen, oxygen, or water, are involved in each of the above reactions, the site where all these substances gather represents a single site of the reaction. [0004] For example, if a catalyst with electron conductivity is arranged on the surface of the proton conductor in a state of ...

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Problems solved by technology

[0009] However, Nafion as a solid substance also encounters a problem, due to its proton conduction mechanism, unless Nafion itself is soaked in sufficient water, it will not exhibit its proton conduction properties

Therefore, if the electrode contains Nafion, the device will be difficult to use continuously in dry air

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