The 82nd JSAP Autumn Meeting 2021

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Symposium (Oral)

Symposium » (Open Symposium) Electrochemical reduction technology toward for the CO2 concentration reducing in the air

[13p-N201-1~7] (Open Symposium) Electrochemical reduction technology toward for the CO2 concentration reducing in the air

Mon. Sep 13, 2021 1:30 PM - 5:15 PM N201 (Oral)

Haru-Hisa Uchida(Tokai Univ.), Tessui Nakagawa(University of the Ryukyu)

2:30 PM - 3:00 PM

[13p-N201-3] H2-CO2 fuel cell: Electric power generation during the reduction of CO2 to CH4

〇Minoru Umeda1, Shofu Matsuda1 (1.Nagaoka University of Technology)

Keywords:Carbon dioxide, Electroreduction, Fuel cell

We developed a fuel cell that generate CH4 and electric power by feeding CO2 and H2 independently. By employing Pt electrode and polymer electrolyte membrane, CO2 reduction is found to occur without overpotentials. This electroreduction enabled to make electricity in combination with the H2 electrooxidation for the first time. In addition, an elimination method of poisoned electrode by the reduction intermediate of CO is proposed. The updated Faradaic efficiency of the CH4 production is 18.2% that is further in the progress.