Nippon Shokubai Co., Ltd.

Masatoshi Ikeda

Hideaki Tsuneki

Yasushi Sekine

Kuninori Miyazaki

The objective of the present invention is to provide a steam electrolysis cell of which current efficiency is high and by which hydrogen can be efficiently produced, and a method for producing hydrogen using the steam electrolysis cell. The steam electrolysis cell according to the present invention is characterized in comprising an anode layer, a cathode layer, and a proton conducting oxide electrolyte layer between the anode layer and the cathode layer, wherein the anode layer comprises a perovskite oxide, and the perovskite oxide comprises Ba and Co.

Steam electrolysis cell

A method which can efficiently produce ammonia at low temperature and low pressure and which can respond flexibly to an unsteady electrical power supply condition. In addition, a catalyst which is excellent in activity for synthesizing ammonia and which is used in a method for efficiently producing ammonia without regard to supply condition and supply location of electrical power. The method is characterized in that a reactor for synthesizing ammonia is used, and the reactor has a pair of electrodes, a voltage applying means for applying voltage between the electrodes, a catalyst between the electrodes, a raw material gas inlet port, and an ammonia-containing gas discharge port, and including introducing at least nitrogen and hydrogen as a raw material gas into the reactor for synthesizing ammonia, and applying a voltage to the electrodes of the reactor for synthesizing ammonia, wherein electrical discharge does not occur by the voltage.

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Hyogo, Japan

Masatoshi Ikeda