For reduction of CO2 in a transportation sector, the biggest problem is the sequestration of CO2, since it is emitted and diffused from a huge number of automobiles in spatial diversity. It will be one of the effective solutions to spread zero-CO2 emission vehicles, such as EVs and FCVs, and to concentrate CO2 on the energy supply side. The vision of our research-and-development “the CAFE project” for realization of the low carbon society is described here. Key technologies are: (1) Platinum-free anode/cathode catalysts. (2) Anion exchange membrane. (3) Electrochemical reaction of taking out an electron directly from the liquid fuel as a high energy density carrier. Especially, hydrazine hydrate (N2H4・H2O)is hopeful as an on-carbon liquid fuel. For the fuel supply infrastructure, it is expectable to use the existing 40, 000 gas stations all over Japan practically by taking advantage of a liquid fuel. Many laboratories of universities, public research institutes, and private enterprises in and outside Japan are taking part in this CAFE project.
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