US 12,444,753 B2
Nanowire catalyst for fuel cell and method of manufacturing same
Dong Yoon Shin, Yongin-si (KR)
Assigned to HYUNDAI MOTOR COMPANY, Seoul (KR); and KIA CORPORATION, Seoul (KR)
Filed by HYUNDAI MOTOR COMPANY, Seoul (KR); and KIA CORPORATION, Seoul (KR)
Filed on May 15, 2024, as Appl. No. 18/664,614.
Application 18/664,614 is a division of application No. 17/547,609, filed on Dec. 10, 2021, granted, now 12,015,160.
Claims priority of application No. 10-2021-0081234 (KR), filed on Jun. 23, 2021.
Prior Publication US 2024/0297312 A1, Sep. 5, 2024
Int. Cl. H01M 4/92 (2006.01); H01M 4/86 (2006.01); H01M 4/88 (2006.01); H01M 4/90 (2006.01)
CPC H01M 4/8885 (2013.01) [H01M 4/8605 (2013.01); H01M 4/8882 (2013.01); H01M 4/9041 (2013.01); H01M 4/92 (2013.01); H01M 4/926 (2013.01)] 3 Claims
 
1. A nanowire catalyst for a fuel cell, the nanowire catalyst comprising a catalytic metal, and the catalytic metal having a porous structure in which first and second pores having different pore sizes are uniformly dispersed inside and on a surface of the catalytic metal;
wherein the first pores have a larger pore size than the second pores;
wherein the first pores account for 10% to 30% by volume and the second pores account for 70% to 90% by volume with respect to the total volume of the pores;
wherein the first pores have a pore size of 7 nm to 10 nm;
wherein the second pores have a pore size of 2 nm to 6 nm;
wherein the catalytic metal has a nanowire structure.