Panasonic Corporation

Panasonic Intellectual Property Management Co., Ltd.

Yuji Zenitani

Takashi Nishihara

Tomoyuki Komori

Tetsuya Asano

Takashi Otsuka

Tomoko Suzuki

Saifullah Badar

Yuka Yamada

Masahiro Deguchi

Satoshi Yotsuhashi

Akihiro Itou

Reiko Taniguchi

Hyunjeong Nam

Manabu Kanou

Yuki Nakata

Hideaki Adachi

Tsutomu Kanno

Nobuyasu Suzuki

Takashi Ohtsuka

Hiroki Takeuchi

Akira Taomoto

Atsushi Omote

Mitsuru Hashimoto

The desorbing process of the present disclosure includes a step of bringing a solution containing a hydrogenated aromatic compound, at least one of [P((CH)CH)((CH)CH) (5&#x2264;m&#x2264;24, 13&#x2264;n&#x2264;24)]and [N((CH)CH)((CH)CH) (5&#x2264;m&#x2264;24, 13&#x2264;n&#x2264;24)], and an anion into contact with an anode; and desorbing hydrogen from the hydrogenated aromatic compound.

Desorbing process, hydrogen-supplying solution, and desorbing apparatus

A hydrogen desorption method includes a step of bringing a liquid containing an alicyclic saturated hydrocarbon having a tertiary carbon atom bearing a saturated hydrocarbon side chain, a quinone, and an electrolyte into contact with a anode and a step of desorbing hydrogen from the alicyclic saturated hydrocarbon having a tertiary carbon atom bearing a saturated hydrocarbon side chain.

Hydrogen desorption method and dehydrogenation apparatus

An exemplary proton conductor according to the present disclosure has a perovskite-type crystal structure expressed by the compositional formula ABB'O, where A is at least one selected from among group 2 elements; B is a group 4 element or Ce; B&#x2032; is a group 3 element, a group 13 element, or a lanthanoid element; 0.5&#x3c;a&#x2264;1.0, 0.0&#x2264;x&#x2264;0.5, and 0.0&#x2264;&#x3b4;&#x3c;3; and the charge of the above compositional formula is deviated from electrical neutrality in a range of &#x2212;0.13 or more but less than +0.14.

Proton conductor

An exemplary dehydrogenation device for generating a hydrogen gas through dehydrogenation according to the present disclosure comprises an anode containing a dehydrogenation catalyst, a cathode containing catalyst capable of reducing protons, and a proton conductor disposed between the anode and the cathode. The proton conductor has a perovskite crystal structure expressed by the compositional formula ABB'O. The A element is an alkaline-earth metal and is contained in a range of 0.4&#x3c;a&#x3c;0.9, where the a value represents a mole fraction of this element, and the B&#x2032; element is a trivalent group 3 or group 13 element and is contained in a range of 0.2&#x3c;x&#x3c;0.6, where the x value represents a mole fraction of this element.

Dehydrogenation device

An exemplary proton conductor according to the present disclosure has a perovskite-type crystal structure expressed by the compositional formula ABB'O, where A is at least one selected from among group 2 elements; B is a group 4 element or Ce; B&#x2032; is a group 3 element, a group 13 element, or a lanthanoid element; 0.5&#x3c;a&#x2266;1.0, 0.0&#x2266;x&#x2266;0.5, and 0.0&#x2266;&#x3b4;&#x3c;3; and the charge of the above compositional formula is deviated from electrical neutrality in a range of &#x2212;0.13 or more but less than +0.14.

A proton conductor includes an electrolytic layer having first and second main surfaces; and a plurality of catalyst particles. The first main surface of the electrolytic layer includes a flat portion and a plurality of recessed portions. The plurality of catalyst particles are respectively located in the plurality of recessed portions. The flat portion of the first main surface and parts of surfaces of the plurality of catalyst particles exposed from the plurality of recessed portions form a third main surface. The electrolytic layer is formed of a single crystal of a perovskite-type oxide having a proton conductivity. The catalyst particles are formed of a single crystal of a noble metal material. The perovskite-type oxide of the electrolytic layer) has a crystal orientation that matches a crystal orientation of the noble metal material of the plurality of catalyst particles.

Proton conductor and proton conductor device

An exemplary organic hydride conversion device for generating a hydrogen gas through organic hydride conversion according to the present disclosure comprises an anode containing a dehydrogenation catalyst, a cathode containing hydrogenation catalyst, and a proton conductor disposed between the anode and the cathode. The proton conductor has a perovskite crystal structure expressed by the compositional formula ABB'O. The A element is an alkaline-earth metal and is contained in a range of 0.4&#x3c;a&#x3c;0.9, where the a value represents a mole fraction of this element, and the B&#x2032; element is a trivalent group 3 or group 13 element and is contained in a range of 0.2&#x3c;x&#x3c;0.6, where the x value represents a mole fraction of this element.

Organic hydride conversion device

An exemplary proton conductor according to the present disclosure has a perovskite-type crystal structure expressed by the compositional formula ABB'O. The A element is an alkaline-earth metal and is contained in a range of 0.4&#x3c;a&#x3c;0.9, where the a value represents a mole fraction of this element, and the B&#x2032; element is a trivalent group 3 or group 13 element and is contained in a range of 0.2&#x3c;x&#x3c;0.6, where the x value represents a mole fraction of this element.

The method for reducing carbon dioxide of the present invention includes a step (a) and a step (b) as follows. A step (a) of preparing an electrochemical cell. The electrochemical cell comprises a working electrode (), a counter electrode () and a vessel (). The vessel () stores an electrolytic solution (). The working electrode () contains boron carbide. The electrolytic solution () contains carbon dioxide. The working electrode () and the counter electrode () are in contact with the electrolytic solution (). A step (b) of applying a negative voltage and a positive voltage to the working electrode and the counter electrode, respectively, to reduce the carbon dioxide.

Method for reducing carbon dioxide

The method for reducing carbon dioxide of the present disclosure includes a step (a) and a step (b) as follows. A step (a) of preparing an electrochemical cell. The electrochemical cell comprises a working electrode, a counter electrode and a vessel. The vessel stores an electrolytic solution. The working electrode contains at least one nitride selected from the group consisting of titanium nitride, zirconium nitride, hafnium nitride, tantalum nitride, molybdenum nitride and iron nitride. The electrolytic solution contains carbon dioxide. The working electrode and the counter electrode are in contact with the electrolytic solution. A step (b) of applying a negative voltage and a positive voltage to the working electrode and the counter electrode, respectively, to reduce the carbon dioxide.

A proton-conducting structure that exhibits favorable proton conductivity in the temperature range of not lower than 100&#xb0; C., and a method for manufacturing the same are provided. After a pyrophosphate salt containing Sn, Zr, Ti or Si is mixed with phosphoric acid, the mixture is maintained at a temperature of not less than 80&#xb0; C. and not more than 150&#xb0; C., and thereafter maintained at a temperature of not less than 200&#xb0; C. and not more than 400&#xb0; C. to manufacture a proton-conducting structure. The proton-conducting structure of the present invention has a core made of tin pyrophosphate, and a coating layer formed on the surface of the core, the coating layer containing Sn and O, and having a coordination number of O with respect to Sn of grater than 6.

Proton-conducting structure and method for manufacturing the same

A proton-conducting structure that exhibits favorable proton conductivity in the temperature range of not lower than 100&#xb0; C., and a method for manufacturing the same are provided. After a pyrophosphate salt containing Sn, Zr, Ti or Si is mixed with phosphoric acid, the mixture is maintained at a temperature of not less than 80&#xb0; C. and not more than 150&#xb0; C., and thereafter maintained at a temperature of not less than 200&#xb0; C. and not more than 400&#xb0; C. to manufacture a proton-conducting structure. The proton-conducting structure of the present invention has a core made of tin pyrophosphate, and a coating layer formed on the surface of the core, the coating layer containing Sn and O, and having a coordination number of O with respect to Sn of greater than 6.

An object of the present invention is to provide a fuel cell that operates in a temperature range of not lower than 100&#xb0; C., and a method for manufacturing such a fuel cell. The fuel cell of the present invention has a proton conductive gel, an anode electrode, and a cathode electrode,

Fuel cell in which proton conductive gel is used and manufacturing method thereof, and electric power generation method

The present invention provides a method for producing a manganese oxide nanoparticle dispersed material having steps of dissolving manganese nitrate in a polyamide acid solution (Step 1); forming a coating on the surface of the substrate using the polyamide acid solution containing manganese nitrate dissolved therein (Step 2); and carbonizing the polyamide acid and depositing manganese oxide nanoparticles by subjecting the coating to a heat treatment at a temperature not less than 600&#xb0; C. but not more than 1200&#xb0; C. (Step 3).

Growing community of inventors

Nara, Japan

Yuji Zenitani