Panasonic Intellectual Property Management Co., Ltd.

Panasonic Corporation

Japan Science and Technology Agency

The University of Tokyo

Ryo Kamai

Adam Heller

Takeyuki Yamaki

Kazuhito Hashimoto

Yuya Suzuki

Takashi Sekiguchi

Takao Hayashi

Michio Suzuka

Naoki Yoshikawa

Shuji Nakanishi

Go Tei

Yuuki Kitade

Hiroaki Usui

Kazuhide Kamiya

Kazuyuki Iwase

Michihiko Tani

A carbon-based material according to the present invention contains dopant atoms of metal and non-metal such as nitrogen. In a radial distribution function obtained by Fourier transform of a K-edge EXAFS of the metal, a ratio of 'A' to 'B' is equal to or more than 4.0, wherein &#x201c;A&#x201d; denotes an intensity of the highest one of peaks around a distance equal to a coordinate bond length between atoms of the metal and the non-metal and &#x201c;B&#x201d; denotes an intensity of the highest one of peaks around a distance equal to a metallic bond length between atoms of the metal. Note that when the metal is platinum, in a radial distribution function obtained by Fourier transform of an LIII-edge EXAFS of the platinum, a ratio of &#x201c;A&#x201d; to &#x201c;B&#x201d; is equal to or more than 4.0.

Carbon-based material, electrode catalyst, electrode, gas diffusion electrode, electrochemical device, fuel battery, and process for producing carbon-based material

An object of the present invention is to provide a carbon dioxide adsorption and release device, which has high adsorptivity, and also consumes low energy upon adsorption and desorption. The carbon dioxide adsorption and release device is characterized by including a pair of electrodes (electrodeand electrode) provided opposite to each other; an electrolytefilled between the respective electrodesandof the pair of electrodes; and a porous bodyprovided on the electrodeof the pair of electrodes, wherein the electrolyteabsorbs carbon dioxide thereby dissolving the carbon dioxide therein, and thus enabling formation of carbonic acid ions or hydrogen carbonate ions; and the carbonic acid ions or hydrogen carbonate ions are electrostatically adsorbed on a surface of the porous bodywhen a forward voltage is applied to the pair of electrodes by the porous body, and the carbonic acid ions or hydrogen carbonate ions are electrostatically released from a surface of the porous bodywhen a backward voltage is applied to the pair of electrodes.

Adsorption and release device of carbon dioxide

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Hyogo, Japan

Ryo Kamai