Compositions of nanometal particles containing a metal or alloy and platinum particles
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01M-004/02
H01M-004/36
H01M-004/92
출원번호
US-0110841
(2011-05-18)
등록번호
US-8211594
(2012-07-03)
발명자
/ 주소
McGrath, Kimberly
Carpenter, R. Douglas
출원인 / 주소
QuantumSphere, Inc.
대리인 / 주소
Knobbe, Martens, Olson & Bear, LLP
인용정보
피인용 횟수 :
1인용 특허 :
30
초록▼
A composition comprising an admixture of at least platinum particles and metal nanoparticles of metal that, when in admixture with the platinum particles, beneficially alters the characteristics of the platinum, including metals selected from one or more of the metals in groups 3-16, lanthanides, co
A composition comprising an admixture of at least platinum particles and metal nanoparticles of metal that, when in admixture with the platinum particles, beneficially alters the characteristics of the platinum, including metals selected from one or more of the metals in groups 3-16, lanthanides, combinations thereof, and/or alloys thereof. The composition could be used to form an ink that further comprises an ionically conductive material, such as a polymer, capable of ionic networking throughout the ink composition so as to create a substantially structurally coherent mass without significantly impacting the reactivity of a substantial number of the nanoparticles. In one application, the ink may be used to form a catalyst whereby the ink is applied to an electrically conductive backing material, such as carbon paper or fibers. In another application, the ink may be used to form an electrode whereby the ink may be applied to an electrically conductive material, and wherein the ink comprises an admixture of platinum particles and metal nanoparticles.
대표청구항▼
1. A composition suitable for use in a direct methanol fuel cathode, the composition comprising nanoparticles comprising a metal core and a shell comprising an oxide of the core metal material, the composition further comprising platinum alloy particles substantially devoid of an oxide shell, and an
1. A composition suitable for use in a direct methanol fuel cathode, the composition comprising nanoparticles comprising a metal core and a shell comprising an oxide of the core metal material, the composition further comprising platinum alloy particles substantially devoid of an oxide shell, and an ion-conducting polymer. 2. The composition of claim 1, wherein the metal nanoparticles comprise one or more of palladium, chromium, manganese, nickel, iron, copper, gold, lanthanum, cerium, tin, sulfur, selenium, cobalt, silver, and alloys thereof. 3. A direct methanol fuel cell comprising a cathode comprising the composition of claim 2.
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이 특허에 인용된 특허 (30)
Takamura Tsutomu (Yokohama JPX) Sato Yuichi (Atsugi JPX) Nakamura Toshiaki (Yono JPX) Suzuki Nobukazu (Tokyo JPX), Air electrode.
Auer Emmanuel,DEX ; Freund Andreas,DEX ; Lehmann Thomas,DEX ; Starz Karl-Anton,DEX ; Schwarz Robert,DEX ; Stenke Udo,DEX, Co-tolerant anode catalyst for PEM fuel cells and a process for its preparation.
Chun William ; Narayanan Sekharipuram R. ; Jeffries-Nakamura Barbara ; Valdez Thomas I. ; Linke Juergen, Direct deposit of catalyst on the membrane of direct feed fuel cells.
Surampudi Subbarao ; Frank Harvey A. ; Narayanan Sekharipuram R. ; Chun William ; Jeffries-Nakamura Barbara ; Kindler Andrew ; Halpert Gerald, Direct methanol feed fuel cell and system.
Hampden-Smith, Mark J.; Kodas, Toivo T.; Atanassov, Plamen; Kunze, Klaus; Napolitano, Paul; Bhatia, Rimple; Dericotte, David E.; Atanassova, Paolina, Electrocatalyst powders, methods for producing powders and devices fabricated from same.
Yamada, Yuka; Suzuki, Nobuyasu; Sasaki, Hidehiro, Electrochemical electrode using nickel-containing nanostructured material having dendritic structure as active layer, and method for producing the same.
Hampden-Smith, Mark J.; Kodas, Toivo T.; Atanassov, Plamen; Atanassova, Paolina; Kunze, Klaus; Napolitano, Paul; Dericotte, David; Bhatia, Rimple, Energy devices and methods for the fabrication of energy devices.
Ozin Geoffrey A. (63 Gormley Ave. Toronto ; Ontario CAX M4V 1Y9) Andrews Mark P. (374 Markham St. Toronto ; Ontario CAX), Metal carbon catalyst preparation.
Passaniti Joseph L. (Madison WI) Dopp Robert B. (Madison WI), Metal-air cathode and cell having catalytically active manganese compounds of valence state +2.
Passaniti Joseph L. (Madison WI) Dopp Robert B. (Madison WI), Method of making air cathode material having catalytically active manganese compounds of valance state +2.
Hahn Allen W. (Columbia MO) Nichols Michael F. (Columbia MO) Sharma Ashok K. (Rolla MO) Hellmuth Eckhard W. (Kansas City MO), Oxygen electrode and method for preparation thereof.
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