Method and apparatus of preparing catalyst for fuel cell
AssigneesHyundai Motor Company, Kia Motors Corporation, Pusan National University Industry-University Cooperation Foundation
InventorsWoong Pyo Hong, Se Hun Kwon, Woo Jae Lee
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Abstract
A method for producing a catalyst for a fuel cell comprising: a) injecting carbon particles into a fluidized bed reactor; b) evacuating the fluidized bed reactor to form a base pressure; c) introducing a catalytic metal precursor together with a carrier gas into the fluidized bed reactor to contact the catalytic metal precursor with the carbon particles; d d) purging a purge gas into the fluidized bed reactor; e) introducing a reaction gas into the fluidized bed reactor to attach the catalytic metal precursor to the carbon particles; and f) purging a purge gas into the fluidized bed reactor, wherein, the catalytic metal is attached to the carbon particles in a form of nano-sized spot.
Claims19
A method for producing a catalyst for a fuel cell comprising:
- a) injecting carbon particles into a fluidized bed reactor;
- b) evacuating the fluidized bed reactor to form a base pressure;
- c) introducing a catalytic metal precursor together with a carrier gas into the fluidized bed reactor to contact the catalytic metal precursor with the carbon particles;
- d) purging a purge gas into the fluidized bed reactor;
- e) introducing a reaction gas into the fluidized bed reactor to attach the catalytic metal precursor to the carbon particles;
- and
- f) purging a purge gas into the fluidized bed reactor,
- wherein, the catalytic metal is attached to the carbon particles in a form of nano-sized spot.
An apparatus producing a catalyst for fuel cell comprising:
- a fluidized bed reactor;
- a vacuum pump connected to an upper part of the fluidized bed reactor and controlling a pressure inside the fluidized bed reactor;
- a purge gas reservoir connected to a lower part of the fluidized bed reactor;
- a reaction gas reservoir connected to a lower part of the fluidized bed reactor;
- a first pipe connecting the purge gas reservoir and the fluidized bed reactor;
- a second pipe connecting the reaction gas reservoir and the fluidized bed reactor;
- and
- a container connected to the first pipe, the container storing the catalytic metal precursor;
- wherein, the fluidized bed reactor comprises:
- an upper mesh located in an outlet of the upper part of the fluidized bed reactor, comprising a hollow portion therein, formed of a mesh material, and including an open form of the upper surface of the upper mesh;
- an upper glass bead filled in the upper mesh;
- an upper surface mesh coupled to an upper surface of the upper mesh;
- a lower mesh disposed at an inlet of the fluidized bed reactor, including a hollow portion therein and formed of a mesh material;
- and
- a lower glass bead filled in the lower part of the fluidized bed reactor.
Dependencies are inferred from the claim text.