摘要:
There are provided carbon particles supporting thereon fine particles of a perovskite type composite oxide, which can be used as a substitute for the existing platinum-supporting carbon particles or platinum metal particles commonly used in electrocatalysts for fuel cells, and which are significantly reduced in the amount of platinum to be used in comparison with the existing platinum-supporting carbon particles, and a process for manufacturing the same carbon particles.The fine particles of a perovskite type composite metal oxide which contains a noble metal element in its crystal lattice and has an average crystallite size of from 1 to 20 nm are supported on carbon particles. To manufacture such fine particle-supporting carbon particles, a solution containing complex ions of a metal which constitutes the fine perovskite type composite oxide particle is firstly prepared; then, carbon particles are dispersed in the resulting solution to adsorb the complex ions of the metal onto the carbon particles; and the resulting dispersion is subjected to a heat treatment.
摘要:
a fuel cell capable of improving heat exchange efficiency with respect to tubular fuel cells is provided. A fuel cell includes a hollow electrolyte membrane, hollow electrodes arranged on an inside and an outside of the electrolyte membrane, respectively, and an internal charge collector arranged inside of the electrolyte membrane and the electrodes, wherein the internal charge collector is hollow and made of a nonporous member.
摘要:
A tube shaped fuel cell module which includes a plurality of tube shaped fuel cell cells each of which has, in order from the inside, an internal collector, an inside catalyst electrode layer, a solid electrolyte membrane and an outside catalyst electrode layer; and an external collector which collects power from the tube shaped fuel cell cells, is such that the external collector has a corrugated plate structure in which convex portions and concave portions continuously alternate. The tube shaped fuel cell module is also provided with at least one cell-collector unit which includes the external collector, and the plurality of tube shaped fuel cell cells which contact the surface of the concave portions of the external collector along the entire lengths of the tube shaped fuel cell cells.
摘要:
A tubular fuel cell includes an inner current collector, a membrane-electrode assembly, and seal portions provided at the axial end portions of the membrane-electrode assembly, respectively. The membrane-electrode assembly includes an inner catalyst layer provided on the inner current collector, an electrolyte membrane provided on the inner catalyst layer, and an outer catalyst layer provided on the electrolyte membrane. The axial length of the outer catalyst layer is shorter than the axial lengths of the electrolyte membrane and the outer catalyst layer. The axial end face of the outer catalyst layer and the axial end face of the inner catalyst layer are located on the opposite sides of the seal portion in each side of the tubular fuel cell.
摘要:
A tubular fuel cell module is provided with a tubular cell of a tubular fuel cell, and a heat transfer pipe through which a heating/cooling medium flows to selectively heat and cool the tubular fuel cell. The heat transfer pipe includes a first straight portion, a second straight portion, and a bent portion that connects the first straight portion with the second straight portion. At least a portion of the tubular cell is arranged on at least one of the first straight portion and the second straight portion. As a result, the reliability of a seal of the tubular fuel cell module is improved.
摘要:
A fuel cell capable of improving heat exchange efficiency with respect to tubular fuel cells is provided. A fuel cell includes a hollow electrolyte membrane, hollow electrodes arranged on an inside and an outside of the electrolyte membrane, respectively, and an internal charge collector arranged inside of the electrolyte membrane and the electrodes, wherein the internal charge collector is hollow and made of a nonporous member.
摘要:
A tubular fuel cell includes an inner current collector, a membrane-electrode assembly, and seal portions provided at the axial end portions of the membrane-electrode assembly, respectively. The membrane-electrode assembly includes an inner catalyst layer provided on the inner current collector, an electrolyte membrane provided on the inner catalyst layer, and an outer catalyst layer provided on the electrolyte membrane. The axial length of the outer catalyst layer is shorter than the axial lengths of the electrolyte membrane and the outer catalyst layer. The axial end face of the outer catalyst layer and the axial end face of the inner catalyst layer are located on the opposite sides of the seal portion in each side of the tubular fuel cell.
摘要:
A tubular fuel cell including: a center support member made from a wire rod; an electrolyte layer formed upon the outside of the center support member; an outer circumferential support member disposed between the center support member and the electrolyte layer, and which is made from a wire rod; a catalyst layer formed upon the outer circumferential surface of the outer circumferential support member, and that is in contact with the electrolyte layer; and an auxiliary outer circumferential support member provided between the center support member and the outer circumferential support member, and which is made from a wire rod.
摘要:
A recycled paper for electrophotography has a fine class pulp containing a fine class waste paper pulp. The fine class pulp is in a content of not less than 90% by weight based on the weight of the whole pulp. The recycled paper has a waste paper pulp content of more than 70% by weight based on the weight of the whole pulp.
摘要:
A method of manufacturing a fuel cell includes: growing carbon nanotubes substantially perpendicular to a substrate formed by loading a growth catalyst on a base material; arranging the substrate and a polymer electrolyte membrane so as to oppose to each other and combining the carbon nanotubes with the polymer electrolyte membrane; and dissolving and removing part of the substrate by immersing the substrate in a solution which dissolves the substrate, after the carbon nanotubes and the polymer electrolyte membrane are combined.