Abstract: A catalyst layer for a fuel cell, wherein the catalyst layer comprises a catalyst-supporting carbon and an ionomer; wherein, in a particle size distribution obtained by the laser diffraction/scattering method, the catalyst-supporting carbon has at least two aggregate particle size peaks at less than 1 ?m and at 1 ?m or more; wherein, when a thickness of the catalyst layer is divided into three equal parts, the catalyst layer has a first region on a gas diffusion layer side, a second region in a middle part, and a third region on an electrolyte membrane side; and wherein a void ratio VG of the first region is 5% or more higher than a void ratio VM of the third region.

Abstract: [OBJECT] To provide an evaporator which can improve heat exchange performance. [SOLVING MEANS] An evaporator including a metal wall and a porous metal film directly connected to the metal wall, wherein the porous metal film has communication holes having an average pore size of 8 ?m or less, and the porous metal film has a porosity of 50% or more.

Abstract: Provided is a higher manganese silicide based telluride composite for thermoelectric conversion, represented by the following general formula (1): (MnsSi1.740±0.015)1?x(MnTe)x??(1) wherein x is the molar fraction of manganese telluride in the higher manganese silicide based telluride composite for thermoelectric conversion and satisfies the relation 0<x?0.10, and the maximum ZT value is 0.40 or more.

Abstract: To provide a thermoelectric conversion material having an enhanced thermoelectromotive force and a production method thereof. A thermoelectric conversion material including a matrix and a barrier material, wherein the matrix contains Mg2Si1-xSnx (x is from 0.50 to 0.80) and an n-type dopant and the barrier material contains Mg2Si1-ySny (y is from 0 to 0.30), and a production method thereof. A thermoelectric conversion material and a production method thereof, in which the movement of minority carrier is blocked by a barrier material and the thermoelectromotive force is thereby enhanced, can be provided.

Abstract: [OBJECT] To provide an evaporator which can improve heat exchange performance. [SOLVING MEANS] An evaporator including a metal wall and a porous metal film directly connected to the metal wall, wherein the porous metal film has communication holes having an average pore size of 8 ?m or less, and the porous metal film has a porosity of 50% or more.

Abstract: Provided is a higher manganese silicide based telluride composite for thermoelectric conversion, represented by the following general formula (1): (MnsSi1.740±0.015)1x(MnTe)x??(1) wherein x is the molar fraction of manganese telluride in the higher manganese silicide based telluride composite for thermoelectric conversion and satisfies the relation 0<x?0.10, and the maximum ZT value is 0.40 or more.

Abstract: To provide a thermoelectric conversion material having an enhanced thermoelectromotive force and a production method thereof. A thermoelectric conversion material including a matrix and a barrier material, wherein the matrix contains Mg2Si1-xSnx (x is from 0.50 to 0.80) and an n-type dopant and the barrier material contains Mg2Si1-ySny (y is from 0 to 0.30), and a production method thereof. A thermoelectric conversion material and a production method thereof, in which the movement of minority carrier is blocked by a barrier material and the thermoelectromotive force is thereby enhanced, can be provided.

Abstract: A thermoelectric conversion module (10) comprises a first electrode member (13) arranged on a low temperature side, a second electrode member (14) arranged on a high temperature side, and p-type and n-type thermoelectric elements (11 and 12) arranged between and connected electrically with both the first and second electrode members (13 and 14). The thermoelectric elements (11 and 12) are composed of a thermoelectric material (half-Heusler material) containing an intermetallic compound having an MgAgAs crystal structure as a main phase and have a fracture toughness value K1C of not less than 1.3 MPa·m1/2 and less than 10 MPa·m1/2.

Abstract: A thermoelectric material includes a composition represented by the following formula (A): (Tia1Zrb1Hfc1)xNiySn100-x-y??(A) where 0<a1<1, 0<b1<1, 0<c1<1, a1+b1+c1=1, 30?x?35, and 30?y?35. The composition includes at least two MgAgAs crystal phases different in a lattice constant, and, assuming that X-ray diffraction peak intensity from a (422) diffraction plane of a first MgAgAs crystal phase having a smallest lattice constant and X-ray diffraction peak intensity from a (422) diffraction plane of a second MgAgAs crystal phase having a largest lattice constant be I1 and I2, respectively, a value of I1/(I1+I2) is in a range of 0.2 to 0.8.

Abstract: A thermoelectric conversion module (10) used at temperatures of 300° C. or more includes a first substrate (15) disposed on a low temperature side, a second substrate (16) disposed on a high temperature side, first and second electrode members (13, 14) provided to face the element mounting regions of these substrates (15, 16), and a plurality of thermoelectric elements (11, 12) disposed between the electrode members (13, 14). An occupied area ratio of the thermoelectric elements (11, 12) in the module is set to 69% or more, and an output per unit area of the thermoelectric conversion module (10) is made to increase.

Abstract: A thermoelectric conversion module (10) comprises first and second electrode members (13, 14), and thermoelectric elements (11, 12) arranged between the electrode members (13, 14). The thermoelectric elements (11, 12) are made of a half-Heusler material and are electrically and mechanically connected to the first and second electrode members (13, 14) via bonding parts (17). The bonding parts (17) include a bonding material which contains at least one selected from Ag, Cu and Ni as a main component and at least one of active metal selected from Ti, Zr, Hf, Ta, V and Nb in a range from 1 to 10% by mass.

Abstract: A thermoelectric material includes a composition represented by the following formula (A): (Tia1Zrb1Hfc1)xNiySn100-x-y??(A) where 0<a1<1, 0<b1<1, 0<c1<1, a1+b1+c1=1, 30?x?35, and 30?y?35. The composition includes at least two MgAgAs crystal phases different in a lattice constant, and, assuming that X-ray diffraction peak intensity from a (422) diffraction plane of a first MgAgAs crystal phase having a smallest lattice constant and X-ray diffraction peak intensity from a (422) diffraction plane of a second MgAgAs crystal phase having a largest lattice constant be I1 and I2, respectively, a value of I1/(I1+I2) is in a range of 0.2 to 0.8.