Catalyst complex for fuel cell, method of manufacturing the catalyst complex, electrolyte membrane including the catalyst complex and method of manufacturing the electrolyte membrane
Disclosed are a catalyst complex and a method of manufacturing the same. The catalyst complex may be manufactured by uniformly depositing metal catalyst particles on pretreated support particles through an atomic layer deposition process using a fluidized-bed reactor, which may be then uniformly dispersed throughout the ionomer solution. As such, manufacturing costs may be reduced due to the use of a small amount of metal catalyst particles and the durability of an electrolyte membrane and OCV may increase. Further disclosed are a method of manufacturing the catalyst complex, an electrolyte membrane including the catalyst complex, and a method of manufacturing the electrolyte membrane.
1. A method of manufacturing a catalyst complex for a fuel cell, comprising:
preparing support particles containing a functional group; and
manufacturing a catalyst complex by attaching metal catalyst particles to the support particles,
wherein the support particles comprise an ionomer, and
wherein the support particles are prepared by steps comprising:
dispersing the support particles in an aqueous solution comprising an acid and performing acid treatment, washing, filtration and heat treatment; or
placing the support particles in a reactor and adding ozone (O 3 ) thereto.
2. The method of claim 1 , wherein the support particles comprise a hydroxyl functional group.
3. The method of claim 1 , wherein the catalyst complex is manufactured by steps comprising:
reacting the support particles with a metal catalyst precursor.
4. The method of claim 1 , wherein the metal catalyst particles are attached to the support particles in a fluidized-bed reactor.
5. The method of claim 4 , wherein in the fluidized-bed reactor, a pressure is of about 0.1 to 5 torr and a temperature is of about 150 to 200° C.
6. The method of claim 4 , wherein a purging gas and a reactive gas are introduced into the fluidized-bed reactor.
7. The method of claim 6 , wherein the purging gas is introduced at a flow rate of about 50 to 200 sccm and the reactive gas is introduced at a flow rate of about 10 to 200 sccm.
8. The method of claim 1 , wherein the catalyst complex comprises an amount of about 5 to 20 wt % of the metal catalyst particles, based on the total weight of the catalyst complex.
9. The method of claim 1 , wherein the catalyst complex is manufactured by steps comprising:
providing the support particles in a fluidized-bed reactor;
supplying a metal catalyst precursor into the fluidized-bed reactor to thus bring the support particles into contact with the metal catalyst precursor;
introducing a purging gas into the fluidized-bed reactor;
introducing a reactive gas into the fluidized-bed reactor; and
re-introducing a purging gas into the fluidized-bed reactor,
wherein a cycle comprising the step of the introducing the reactive gas and the step of the re-introducing the purging gas is repeated once or more.