摘要:
A catalyst is provided and includes fine catalyst particles of a composition represented by formula (1): PtuRuxTayTz, in which T is at least one element selected from the group consisting of Hf, W, Ni, and V; u, x, y, and z are 10 to 98.9 atm %, 0.1 to 50 atm %, 0.5 to 35 atm %, and 0.5 to 35 atm %, respectively, or formula (2): PtuRuxTayTz, in which T is at least one element selected from the group consisting of Ct, Mo, Nb, Zr, and T; u, x, y, and z are 40 to 70 atm %, 0.1 to 50 atm %, 0.5 to 15 atm %, and 0.5 to 15 atm %, respectively.
摘要:
A method for producing a catalyst-layer-supporting substrate includes a lamination step of forming a laminate of metal catalyst layers and mixture layers on a substrate by repeating a first step and a second step plural times alternatively; and an acid treatment step of subjecting the laminate to an acid treatment, wherein the first step is a step of sputtering or depositing the metal catalyst layer that comprises a catalyst, and the second step is a step of sputtering or depositing the mixture layer of carbon and metal, the metal of the mixture layer including at least one element M selected from the group consisting of Sn, Al, Cu and Zn.
摘要:
Catalysts contain noble metal-containing particles that has a composition except oxygen represented by a formula PtXRuYAZSnS and exhibits a mean particle diameter of from 0.5 nm to 10 nm, both inclusively. A is at least one element selected from a group consisting of Rh, Au, Pd, Ir and Os, and X, Y, Z and S are atomic ratios satisfying relations 30≦X ≦70, 30≦Y≦70, 0≦Z≦40, 0.5≦S≦8 and X+Y+Z+S=100.
摘要翻译:催化剂含有含有由式PtXRuYAZSnS表示的氧以外的组成的含贵金属的颗粒,其平均粒径均包含0.5nm至10nm。 A是选自Rh,Au,Pd,Ir和Os中的至少一种元素,X,Y,Z和S是满足关系式30 <= X <=70,30≤Y≤70的原子比 ,0 <= Z <= 40,0.5 <= S <= 8,X + Y + Z + S = 100。
摘要:
A catalyst includes a conductive carrier and catalyst particles. The catalyst particles are supported on the conductive carrier and have a composition represented by formula 1, below. An area of a peak derived from a metal bond of a T-element is 15% or more of an area of a peak derived from an oxygen bond of the T-element in a spectrum obtained by X-ray photoelectron spectroscopic method. PtxRuyTz (1) where the T-element is at least one element selected from the group consisting of V, Nb and Hf, x is 30 to 60 at. %, y is 20 to 50 at. % and z is 5 to 50 at. %.
摘要:
A method for producing a catalyst-layer-supporting substrate includes a lamination step of forming a laminate of metal catalyst layers and mixture layers on a substrate by repeating a first step and a second step plural times alternatively; and an acid treatment step of subjecting the laminate to an acid treatment, wherein the first step is a step of sputtering or depositing the metal catalyst layer that comprises a catalyst, and the second step is a step of sputtering or depositing the mixture layer of carbon and metal, the metal of the mixture layer including at least one element M selected from the group consisting of Sn, Al, Cu and Zn.
摘要:
There is provided a catalyst for a fuel cell, which simultaneously realizes excellent catalytic activity and catalytic stability. The catalyst for a fuel cell comprises a fine particle of a metal represented by formula: PtxRuySizT1u wherein T1 represents at least one element selected from the group consisting of nickel (Ni), tungsten (W), vanadium (V), and molybdenum (Mo); x=30 to 90 atomic %; y=0 to 50 atomic %; z=0.5 to 20 atomic %; and u=0.5 to 40 atomic %, or comprises a fine particle of a metal represented by formula: PtxRuySizT2u wherein T2 represents at least one element selected from the group consisting of hafnium (Hf), tin (Sn), zirconium (Zr), niobium (Nb), titanium (Ti), tantalum (Ta), chromium (Cr), and aluminum (Al); x=30 to 90 atomic %; y=0 to 50 atomic %; z=0.5 to 20 atomic %; and u=0.5 to 40 atomic %.
摘要翻译:提供了一种用于燃料电池的催化剂,其同时实现优异的催化活性和催化稳定性。 用于燃料电池的催化剂包括由式PtxRuySizT1u表示的金属微粒,其中T1表示选自镍(Ni),钨(W),钒(V)和钼(Mo)中的至少一种元素 ); x = 30〜90原子% y = 0〜50原子% z = 0.5〜20原子% 并且u = 0.5〜40原子%,或者包含由式PtxRuySizT2u表示的金属微粒,其中,T2表示选自铪(Hf),锡(Sn),锆(Zr), 铌(Nb),钛(Ti),钽(Ta),铬(Cr)和铝(Al); x = 30〜90原子% y = 0〜50原子% z = 0.5〜20原子% u = 0.5〜40原子%。
摘要:
A catalyst is provided and includes fine catalyst particles of a composition represented by formula (1): PtuRuxTayTz, in which T is at least one element selected from the group consisting of Hf, W, Ni, and V; u, x, y, and z are 10 to 98.9 atm %, 0.1 to 50 atm %, 0.5 to 35 atm %, and 0.5 to 35 atm %, respectively, or formula (2): PtuRuxTayTz, in which T is at least one element selected from the group consisting of Ct, Mo, Nb, Zr, and T; u, x, y, and z are 40 to 70 atm %, 0.1 to 50 atm %, 0.5 to 15 atm %, and 0.5 to 15 atm %, respectively
摘要:
There is provided a catalyst for a fuel cell, which simultaneously realizes excellent catalytic activity and catalytic stability. The catalyst for a fuel cell comprises a fine particle of a metal represented by formula: PtxRuySizT1u wherein T1 represents at least one element selected from the group consisting of nickel (Ni), tungsten (W), vanadium (V), and molybdenum (Mo); x=30 to 90 atomic %; y=0 to 50 atomic %; z=0.5 to 20 atomic %; and u=0.5 to 40 atomic %, or comprises a fine particle of a metal represented by formula: PtxRuySizT2u wherein T2 represents at least one element selected from the group consisting of hafnium (Hf), tin (Sn), zirconium (Zr), niobium (Nb), titanium (Ti), tantalum (Ta), chromium (Cr), and aluminum (Al); x=30 to 90 atomic %; y=0 to 50 atomic %; z=0.5 to 20 atomic %; and u=0.5 to 40 atomic %.
摘要翻译:提供了一种用于燃料电池的催化剂,其同时实现优异的催化活性和催化稳定性。 用于燃料电池的催化剂包括由下式表示的金属微粒:<?in-line-formula description =“In-line Formulas”end =“lead”?> Pt “in-line-formula description =”In-line Formulas“end =”tail“?>其中,T1表示(x,y,y,y) 选自镍(Ni),钨(W),钒(V)和钼(Mo))中的至少一种元素。 x = 30〜90原子% y = 0〜50原子% z = 0.5〜20原子% 并且u = 0.5〜40原子%,或者包含由式表示的金属的微粒:<?in-line-formula description =“In-line Formulas”end =“lead”?> Pt β-in-line-formula description =“In-line Formulas”end =“tail”?????? 其中,T2表示选自铪(Hf),锡(Sn),锆(Zr),铌(Nb),钛(Ti),钽(Ta),铬(Cr) 铝(Al); x = 30〜90原子% y = 0〜50原子% z = 0.5〜20原子% u = 0.5〜40原子%。
摘要:
Catalysts contain noble metal-containing particles that has a composition except oxygen represented by a formula PtXRuYAZSnS and exhibits a mean particle diameter of from 0.5 nm to 10 nm, both inclusively. A is at least one element selected from a group consisting of Rh, Au, Pd, Ir and Os, and X, Y, Z and S are atomic ratios satisfying relations 30≦X≦70, 30≦Y≦70, 0≦Z≦40, 0.5≦S≦8 and X+Y+Z+S=100.
摘要翻译:催化剂含有贵金属的颗粒,其除了由式表示的氧以外的组成PtⅪRu Y A>> Sn <<<<<<<<<<<<<<<<<<<<<<<<<<<<< 并且包括0.5〜10nm的平均粒径。 A是选自Rh,Au,Pd,Ir和Os中的至少一种元素,X,Y,Z和S是满足关系式30 <= X <=70,30≤Y≤70的原子比 ,0 <= Z <= 40,0.5 <= S <= 8,X + Y + Z + S = 100。
摘要:
A catalyst includes a conductive carrier and catalyst particles. The catalyst particles are supported on the conductive carrier and have a composition represented by formula 1, below. An area of a peak derived from a metal bond of a T-element is 15% or more of an area of a peak derived from an oxygen bond of the T-element in a spectrum obtained by X-ray photoelectron spectroscopic method. PtxRuyTz (1) where the T-element is at least one element selected from the group consisting of V, Nb and Hf, x is 30 to 60 at. %, y is 20 to 50 at. % and z is 5 to 50 at. %.