Abstract: A blower has: a fan generating an air flow in an axial direction of a rotary shaft; a tubular motor holder 30 formed in a tubular shape and holding the motor radially inside thereof; and a fan case part accommodating the motor, the motor holder, and the fan and forming an air flow path. A first rectification parts that is integrally formed is provided on an inside portion of the fan case part. The first rectification part is formed in a rib shape by a first to fourth blade, weakens a rotational component of a flow of air discharged from the fan, and guides the air to smoothly flow in the axial direction. The motor holder is configured so as to have an axial length smaller than the motor.

Abstract: An electrode catalyst for a fuel cell, the electrode catalyst having high initial activity and being capable of long-term retention of said activity; and a fuel cell using the electrode catalyst for a fuel cell. The electrode catalyst for a fuel cell includes catalyst metal particles that include platinum or a platinum alloy, and carrier particles that carry said catalyst metal particles, wherein the carrier particles are a carbonaceous material having a cumulative pore volume of 0.10 cc/g or less in the diameter range of 2 nm or less, and a BET specific surface area of greater than 900 m2/g; and a fuel cell comprising the electrode catalyst for a fuel cell.

Abstract: A catalyst for a fuel cell includes a carbon support including a micropore, and a metal supported on the carbon support. The metal is at least one of platinum and a platinum alloy, a specific surface area of the carbon support is 250 m2/g-carbon or more and 338 m2/g-carbon or less, and an area of the micropore of the carbon support is 48 m2/g-carbon or more and 74 m2/g-carbon or less.

Abstract: A blower has: a fan generating an air flow in an axial direction of a rotary shaft; a tubular motor holder 30 formed in a tubular shape and holding the motor radially inside thereof; and a fan case part accommodating the motor, the motor holder, and the fan and forming an air flow path. A first rectification parts that is integrally formed is provided on an inside portion of the fan case part. The first rectification part is formed in a rib shape by a first to fourth blade, weakens a rotational component of a flow of air discharged from the fan, and guides the air to smoothly flow in the axial direction. The motor holder is configured so as to have an axial length smaller than the motor.

Abstract: A charging device (1) includes: a case (4) to which a battery pack is detachably attached; a charging circuit portion that charges the battery pack; a fan (30) for cooling; a first opening portion (5) for intake; and a second opening portion (6) for exhaust. An air path from the fan (30) to the second opening portion (6) is connected by an air path forming portion (33) having a long and curved passage length. The air path forming portion (33) narrows down at a point in the middle to achieve a positional relationship in which the fan (30) cannot be seen from the second opening portion (6), thereby making it difficult for operating noise of the fan (30) to leak to the outside. The air path forming portion (33) is formed using a wall surface of the case (4), an outer air-guiding wall (34), and an inner air-guiding wall (35).

Abstract: The present invention relates to an electrode catalyst for a fuel cell that includes a carbon support (11) having pores (13) and catalyst particles containing platinum or a platinum alloy supported on the carbon support (11). The pores (13) of the carbon support (11) have a mode size of pores (13) in a range of 2.1 nm to 5.1 nm. A total pore volume of the pores (13) of the carbon support (11) is in a range of 21 cm3/g to 35 cm3/g. A distance between the catalyst particles and a surface of the carbon support (11) is in a range of 2.0 nm to 12 nm as a distance of a 50% cumulative frequency.

Abstract: An electrode catalyst and a method for producing the electrode catalyst are described, in which the electrode catalyst includes catalyst metal particles containing platinum or a platinum alloy, and carrier particles supporting the catalyst metal particles. The carrier particles are made of a carbonaceous material with a BET specific surface area of 700 m2/g or more. The catalyst metal particles have an average particle size of 2.5 to 4.5 nm, and a standard deviation of the particle size of the catalyst metal particles is 1.30 nm or less. The electrode catalyst has a high initial activity and is able to maintain that activity over a long period of time.

Abstract: An electrode catalyst for fuel cells that can inhibit an increase in gas diffusion resistance includes a carbon material having a ratio of a peak intensity IA derived from an amorphous structure to a peak intensity IG derived from a graphite structure in an X-ray diffraction spectrum (ratio IA/IG) of 0.90 or less as a catalyst-supporting carrier.

Abstract: An electrode catalyst for a fuel cell including: a carbon support; and catalytic metal supported on the carbon support, the catalytic metal being selected from platinum or a platinum alloy, in which the carbon support has a crystallite size of (002) plane of carbon within a range of 5.0 nm or more and has a specific surface area within a range of 95 m2/g to 170 m2/g, and the catalytic metal has a crystallite size of (220) plane of platinum within a range of 4.5 nm or less.

Abstract: An electrode catalyst for a fuel cell, the electrode catalyst having high initial activity and being capable of long-term retention of said activity; and a fuel cell using the electrode catalyst for a fuel cell. The electrode catalyst for a fuel cell includes catalyst metal particles that include platinum or a platinum alloy, and carrier particles that carry said catalyst metal particles, wherein the carrier particles are a carbonaceous material having a cumulative pore volume of 0.10 cc/g or less in the diameter range of 2 nm or less, and a BET specific surface area of greater than 900 m2/g; and a fuel cell comprising the electrode catalyst for a fuel cell.

Abstract: An electrode catalyst for a fuel cell including: a carbon support; and catalytic metal supported on the carbon support, the catalytic metal being selected from platinum or a platinum alloy, in which the carbon support has a crystallite size of (002) plane of carbon within a range of 5.0 nm or more and has a specific surface area within a range of 95 m2/g to 170 m2/g, and the catalytic metal has a crystallite size of (220) plane of platinum within a range of 4.5 nm or less.

Abstract: Provided is an electrode catalyst for a fuel cell including: a carbon support; and catalytic metal supported on the carbon support, the catalytic metal being selected from platinum or a platinum alloy, in which the carbon support has a crystallite size of (002) plane of carbon within a range of 5.0 nm or more and has a specific surface area within a range of 95 m2/g to 170 m2/g, and the catalytic metal has a crystallite size of (220) plane of platinum within a range of 4.5 nm or less.

Abstract: The present invention relates to an electrode catalyst for a fuel cell that includes a carbon support (11) having pores (13) and catalyst particles containing platinum or a platinum alloy supported on the carbon support (11). The pores (13) of the carbon support (11) have a mode size of pores (13) in a range of 2.1 nm to 5.1 nm. A total pore volume of the pores (13) of the carbon support (11) is in a range of 21 cm3/g to 35 cm3/g. A distance between the catalyst particles and a surface of the carbon support (11) is in a range of 2.0 nm to 12 nm as a distance of a 50% cumulative frequency.

Abstract: A method for producing an electrode catalyst for a fuel cell is provided. The electrode catalyst includes a carbon support and a catalyst supported on the carbon support. The catalyst is one of platinum and a platinum-alloy. The method includes supporting the catalyst on the carbon support; and treating the carbon support carrying the catalyst with a nitric acid and cleaning the treated carbon support, such that an amount of an acid present on the carbon support becomes in a range from 0.7 mmol to 1.31 mmol of the acid per gram of the electrode catalyst.

Abstract: An electrode catalyst for fuel cells that can inhibit an increase in gas diffusion resistance includes a carbon material having a ratio of a peak intensity IA derived from an amorphous structure to a peak intensity IG derived from a graphite structure in an X-ray diffraction spectrum (ratio IA/IG) of 0.90 or less as a catalyst-supporting carrier.

Abstract: [Problem] The present invention has as its object the provision of an electrode catalyst for fuel cell with a high initial activity of the electrode catalyst and able to maintain that activity over a long period of time and a method of producing the same. [Solution] The present invention relates to an electrode catalyst for fuel cell, comprising catalyst metal particles containing platinum or a platinum alloy and carrier particles supporting the catalyst metal particles, wherein the carrier particles are made of a carbonaceous material with a BET specific surface area of 700 m2/g or more, wherein the catalyst metal particles have an average particle size of 2.5 to 4.5 nm, and wherein a standard deviation of the particle size of the catalyst metal particles is 1.30 nm or less.

Abstract: There are provided a catalyst layer for a fuel cell electrode and a method of producing the same. The catalyst layer for a fuel cell electrode includes a metal-supported catalyst including a carbon carrier and a metal catalyst supported on the carbon carrier and a fluororesin ionomer. A value obtained when a primary particle diameter of the carbon carrier measured with an SEM, a pH value of the metal-supported catalyst measured by a specific method, and a ratio between a weight of the fluororesin ionomer and a weight of the carbon carrier of the metal-supported catalyst are applied to a specific formula is a certain value or more.

Abstract: An object of the present invention is to provide a fuel-cell electrode catalyst in which a catalyst metal is uniformly supported on a support. This object can be achieved by a fuel-cell electrode catalyst comprising a support having pores and a catalyst metal uniformly supported on the support, wherein at least 80% of the support has a primary particle size within ±75% of the mean primary particle size of the support.

Abstract: An object of the present invention is to provide a fuel-cell electrode catalyst in which a catalyst metal is uniformly supported on a support. This object can be achieved by a fuel-cell electrode catalyst comprising a support having pores and a catalyst metal uniformly supported on the support, wherein at least 80% of the support has a primary particle size within ±75% of the mean primary particle size of the support.

Abstract: An object of the present invention is to provide a fuel-cell electrode catalyst in which a catalyst metal is uniformly supported on a support. This object can be achieved by a fuel-cell electrode catalyst comprising a support having pores and a catalyst metal uniformly supported on the support, wherein at least 80% of the support has a primary particle size within ±75% of the mean primary particle size of the support.