摘要:
This invention provides an anode for a fuel cell which can realize stable output for a long period of time, and a fuel cell using the anode for a fuel cell. The anode for a fuel cell comprises an electrode catalyst layer, the electrode catalyst layer comprising a supported catalyst comprising an electroconductive carrier material and catalyst fine particles supported on the electroconductive carrier material, a proton conductive inorganic oxide, and a proton conductive organic polymer binder, the weight ratio between the supported catalyst (C) and the proton conductive inorganic oxide (SA), WSA/WC, being 0.06 to 0.38, the weight ratio between the proton conductive inorganic oxide (SA) and the proton conductive organic polymer binder (P), WP/WSA, being 0.125 to 0.5.
摘要:
A fuel cell, which can supply stable output even at elevated temperatures and can maintain its power generation performance over a long period of time, can be realized by an electrode for a fuel cell comprising a catalyst layer formed of a catalyst composite and a binder, the catalyst composite comprising a proton-conductive inorganic oxide and an oxidation-reduction catalyst phase supported on the proton-conductive inorganic oxide, the proton-conductive inorganic oxide comprising a catalyst carrier selected from tin(Sn)-doped In2O3, fluorine(F)-doped SnO2, and antimony(Sb)-doped SnO2 and an oxide particle phase chemically bonded to the surface of the catalyst carrier. The catalyst composite is manufactured by dispersing a catalyst carrier in a solution containing a material as a starting material for an oxide particle phase, heat treating the dispersion to form a proton-conductive inorganic oxide, further dispersing the proton-conductive inorganic oxide in a catalyst precursor-containing solution, and subjecting the dispersion to heat treatment or pH adjustment to deposit a catalyst phase.
摘要翻译:即使在升高的温度下也可以提供稳定的输出并且可以长时间维持其发电性能的燃料电池可以通过包括由催化剂复合材料和粘合剂形成的催化剂层的燃料电池的电极来实现, 所述催化剂复合体包含质子传导性无机氧化物和负载在所述质子传导性无机氧化物上的氧化还原催化剂相,所述质子传导性无机氧化物包含选自锡(Sn)掺杂的In 2 O 3,氟(F) 掺杂的SnO 2和锑(Sb)掺杂的SnO 2和化学键合到催化剂载体的表面上的氧化物颗粒相。 催化剂复合体是通过将催化剂载体分散在含有作为氧化物粒子相原料的材料的溶液中进行热处理而形成质子传导性无机氧化物,进一步将质子传导性无机氧化物分散在催化剂 含有前体的溶液,并对分散体进行热处理或pH调节以沉积催化剂相。
摘要:
According to one embodiment, a catalyst layer of an electrode for a fuel cell has a proton conductive inorganic oxide containing an oxide superacid compound. The compound contains an element X (Titanium, Zirconium, Silicon, Tin, Hafnium, Germanium, Gallium, Indium, Cerium, Niobium or Aluminium) and an element Y (Tungsten, Molybdenum, Chromium, Boron or Vanadium). The catalyst layer also contains a reduction-oxidation metal catalyst or a carrier carrying a reduction-oxidation metal catalyst.
摘要:
A cathode includes a diffusion layer, and a porous catalyst layer provided on the diffusion layer. The porous catalyst layer has a thickness not greater than 60 μm, a porosity of 30 to 70% and a pore diameter distribution including a peak in a range of 20 to 200 nm of a pore diameter. A volume of pores having a diameter of 20 to 200 nm is not less than 50% of a pore volume of the porous catalyst layer. The porous catalyst layer contains a supported catalyst comprising 10 to 30% by weight of a fibrous supported catalyst and 70 to 90% by weight of a granular supported catalyst. The fibrous supported catalyst includes a carbon nanofiber having a herringbone structure or a platelet structure. The granular supported catalyst includes a carbon black having 200 to 600 mL/100 g of a dibutyl phthalate (DBP) absorption value.
摘要:
A catalyst layer-supporting substrate includes a substrate and a catalyst layer. The catalyst layer includes a catalyst material and pores. The catalyst layer is formed on the substrate. The catalyst material has a layer or wire shape. A half-value width of a main peak of the catalyst material, as determined from X-ray diffraction spectrum of the catalyst layer, is 1.5° or more. A porosity of the catalyst layer is 30% or more.
摘要:
A catalyst layer-supporting substrate includes a substrate and a catalyst layer. The catalyst layer includes a catalyst material and pores. The catalyst layer is formed on the substrate. The catalyst material has a layer or wire shape. A half-value width of a main peak of the catalyst material, as determined from X-ray diffraction spectrum of the catalyst layer, is 1.5° or more. A porosity of the catalyst layer is 30% or more.
摘要:
According to one embodiment, a catalyst layer of an electrode for a fuel cell has a proton conductive inorganic oxide containing an oxide superacid compound. The compound contains an element X (Titanium, Zirconium, Silicon, Tin, Hafnium, Germanium, Gallium, Indium, Cerium, Niobium or Aluminum) and an element Y (Tungsten, Molybdenum, Chromium, Boron or Vanadium). The catalyst layer also contains a reduction-oxidation metal catalyst or a carrier carrying a reduction-oxidation metal catalyst.
摘要:
A cathode includes a diffusion layer, and a porous catalyst layer provided on the diffusion layer. The porous catalyst layer has a thickness not greater than 60 μm, a porosity of 30 to 70% and a pore diameter distribution including a peak in a range of 20 to 200 nm of a pore diameter. A volume of pores having a diameter of 20 to 200 nm is not less than 50% of a pore volume of the porous catalyst layer. The porous catalyst layer contains a supported catalyst comprising 10 to 30% by weight of a fibrous supported catalyst and 70 to 90% by weight of a granular supported catalyst. The fibrous supported catalyst includes a carbon nanofiber having a herringbone structure or a platelet structure. The granular supported catalyst includes a carbon black having 200 to 600 mL/100 g of a dibutyl phthalate (DBP) absorption value.
摘要:
A supported catalyst includes an oxide carrier, catalyst particles supported on the oxide carrier, and catalyst layers which locate among the catalyst particles, with interface portions among the oxide carrier, the catalyst particles and the catalyst layers. The catalyst layers have a melting point lower than 1,500° C. and contain an oxide or a composite oxide which includes at least one element selected from the group consisting of Mo, W, Sn and Ru.
摘要:
An electrolyte membrane includes a porous membrane and a proton conductive inorganic material loaded in the porous membrane. The proton conductive inorganic material has a super strong acidity. The proton conductive inorganic material contains a first oxide and a second oxide bonded to the first oxide. The first oxide contains an element X formed of at least one element selected from the group consisting of Ti, Zr, Hf, Nb, Al, Ga, In, Si, Ge, Sn and Ce. The second oxide contains an element Y formed of at least one element selected from the group consisting of V, Cr, Me, W and B.