Gunma University

Nisshinbo Holdings Inc.

Other

Kyosuke Iida

Jun-ichi Ozaki

Kazuo Saito

Yasuo Imashiro

Takeaki Kishimoto

Seizo Miyata

Masaharu Oshima

Naokazu Sasaki

Shogo Moriya

Katsuyuki Matsubayashi

An electrode for use in a fuel cell comprises a flexible carbon-fiber nonwoven fabric and a fuel cell catalyst, such as a metal catalyst or a carbon alloy catalyst, supported on the surfaces of the carbon fibers constituting the flexible carbon-fiber nonwoven fabric. The flexible carbon-fiber nonwoven fabric is formed by carbonizing a nonwoven fabric obtained by electrospinning a composition containing: an electrospinnable macromolecular substance; an organic compound that is different from the macromolecular substance; and a transition metal. This structure allows the provision of an electrode, for use in a fuel cell, which uses a flexible carbon-fiber nonwoven fabric as a substrate and combines the functions of a gas-diffusion layer and an electrocatalyst layer.

Electrode for use in a fuel cell functioning as a gas diffusion layer and an electrocatalyst layer

A carbon catalyst which has high catalytic activity and can achieve high catalyst performance is provided. The carbon catalyst comprises nitrogen. The energy peak area ratio of the first nitrogen atom whose electron in the 1s orbital has a binding energy of 398.5&#xb1;1.0 eV to the second nitrogen atom whose electron in the 1s orbital has a binding energy of 401&#xb1;1.0 eV (i.e., the value of (the first nitrogen atom)/(the second nitrogen atom)) of the nitrogen introduced into the catalyst is 1.2 or less.

Carbon catalyst, method for producing carbon catalyst, fuel cell, electricity storage device, and use of carbon catalyst

Growing community of inventors

Chiba, Japan

Kyosuke Iida