Direct liquid fuel cell having hydrazine or derivatives thereof as fuel
AssigneeRamot at Tel-Aviv University Ltd.
InventorsFernando Patolsky, Boris Filanovsky, Eran Granot
Life of this patent
Estimating the term…
Abstract
A fueled cell system comprising: an anode compartment comprising a compound having the formula R1R2N—NR3R4, a salt, a hydrate or a solvate thereof, as fuel, and a catalyst layer which comprises copper or a copper alloy; a cathode compartment comprising an oxidant; and a separator interposed between said cathode and said anode compartments, wherein each of R1-R4 is independently selected from the group consisting of hydrogen, alkyl, alkenyl, alkynyl, heteroalicyclic, alkoxy, carboxy, ketone, amide, hydrazide and amine, provided that at least one of R1-R4 is hydrogen.
Claims35
A fuel cell system comprising an anode compartment, a cathode compartment and a separator interposed between said cathode and said anode compartment comprising an anode compartments, said anode comprising a catalyst layer which consists of copper or a copper alloy, said copper or copper alloy, comprising copper nanoparticles, said catalyst layer being deposited onto a surface of said anode and devoid of a noble metal,
- the system being operable by a fuel composition comprising a compound having the formula R1R2N—NR3R4, wherein each of R1-R4 is independently selected from the group consisting of hydrogen, alkyl, alkenyl, alkynyl, heteroalicyclic, alkoxy, carboxy, ketone, amide, hydrazide and amine, provided that at least one of R1-R4 is hydrogen.
A method of operating a fuel cell system, the method comprising contacting an anode compartment of the fuel cell system with a fuel composition that comprises a compound having the formula R1R2N—NR3R4, and, at the same time, contacting a cathode compartment of the fuel cell system with an oxidant, and electrochemically reacting said compound having said general formula R1R2N—NR3R4 and said oxidant, wherein said anode compartment comprises an anode having a catalyst layer which consists of copper or a copper alloy, said copper or copper alloy comprising copper nanoparticles, said catalyst layer being deposited on a surface of said anode and devoid of a noble metal, the fuel cell system further comprising a separator interposed between said anode compartment and said cathode compartment,
- wherein each of R1-R4 is independently selected from the group consisting of hydrogen, alkyl, alkenyl, alkynyl, heteroalicyclic, alkoxy, carboxy, ketone, amide, hydrazide and amine, provided that at least one of R1-R4 is hydrogen.
A method of producing an electrical energy, the method comprising electrochemically reacting a compound having the formula R1R2N—NR3R4 and an oxidant, wherein said compound having said formula R1R2N—NR3R4 is contacted with an anode compartment which comprises an anode having a catalyst layer that consists of copper or a copper alloy, said copper or copper alloy comprising copper nanoparticles, said catalyst layer being deposited onto a surface of said anode and devoid of a noble metal, and said oxidant is contacted with a cathode in a cathode compartment, said anode compartment and said cathode compartment are assembled as a fuel cell system which further comprises a separator interposed between said anode compartment and said cathode compartment,
- wherein each of R1-R4 is independently selected from the group consisting of hydrogen, alkyl, alkenyl, alkynyl, heteroalicyclic, alkoxy, carboxy, ketone, amide, hydrazide and amine, provided that at least one of R1-R4 is hydrogen.
Dependencies are inferred from the claim text.