Membrane electrode assembly and organic hydride manufacturing device
A membrane-electrode assembly and a technology for manufacturing devices, which are used in electrolytic organic production, electrodes, and power generation processes, etc., can solve problems such as reduced energy efficiency, complicated devices, and limited installation sites, and achieve high energy efficiency.
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Embodiment 1
[0061] As the catalyst, a catalyst obtained by dispersing and supporting 30 wt % of Pt fine particles in carbon black was used. First, 100 g of the catalyst was preheated at 105° C. for 1 hour. Then, sulfur trioxide gas heated to 100° C. was supplied at a concentration of 12 vol. % with respect to the dry air to perform a reaction. The reaction time was set to 2 hours. Then, cooling is performed, the catalyst is put into ion-exchanged water, stirred, filtered, and washed with ion-exchanged water until the pH value of the filtrate becomes stable.
[0062] The catalyst of gained is measured infrared absorption spectrum, the result is at 620cm -1 、1037cm -1 、1225cm -1 A peak was observed. It is believed that this is based on the sulfonic acid-SO 3 In the peak of H, it was confirmed that a sulfonic acid group was introduced into the surface of the carbon black of the carrier. The equivalent of the introduced sulfonic acid group was 1.8 meq / g dry carbon support.
[0063] Th...
Embodiment 2
[0075] As the catalyst, a catalyst obtained by dispersing and supporting 30 wt % of Pt fine particles in carbon black was used. With 10g of this catalyst and 15g of anhydrous aluminum chloride (AlCl 3 ) mix, slowly add thiophosphoryl chloride (PSCl 3 ). The temperature was stabilized at 35°C and 54ml was added slowly. Then, it was kept at 75° C. for 45 minutes. After cooling, 50 ml of chloroform was added and filtered. After fully washing with ether, 200ml of ion-exchanged water was added, and the mixture was refluxed for 20 hours. Measure the infrared absorption spectrum of the catalyst obtained, the result is 1000~1120cm -1 、840~910cm -1 A peak was observed. This is considered to be a peak due to phosphonic acid, and it was confirmed that a phosphonic acid group was introduced into the surface of the carbon black of the carrier. The equivalent of the introduced phosphonic acid group was 1.8 meq / g dry carbon support.
[0076] The produced catalyst was used as a catho...
Embodiment 3
[0080] As the catalyst, a catalyst obtained by dispersing and supporting 30 wt % of Pt fine particles in carbon black was used. The catalyst was irradiated with oxygen plasma. The apparatus used for irradiation was a plasma apparatus model PDC210 manufactured by Yamato Glass Co., Ltd., and the pressure in the chamber (chamber) before oxygen introduction was set to 0.1 Torr or less, and the pressure after oxygen introduction was set to 0.5 Torr. The output of the high-frequency power supply of the apparatus was set to 100 W, and the plasma irradiation time was set to 150 seconds. Measure the infrared absorption spectrum of the catalyst obtained, the result is 3000~3600cm -1 A broad peak was observed. This is considered to be a peak due to the hydroxyl group -OH, and it was confirmed that a hydroxyl group was introduced into the surface of the Pt-carrying carbon black.
[0081] The produced catalyst was used as a cathode catalyst to produce an MEA. The production method and ...
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