US 11,053,598 B2
Method for producing core shell nanoparticles
Nam Hawn Chou, Dublin, OH (US)
Assigned to HONDA MOTOR CO., LTD., Tokyo (JP)
Filed by HONDA MOTOR CO., LTD., Tokyo (JP)
Filed on Feb. 9, 2018, as Appl. No. 15/893,220.
Claims priority of provisional application 62/459,933, filed on Feb. 16, 2017.
Prior Publication US 2018/0230611 A1, Aug. 16, 2018
Int. Cl. C25B 11/091 (2021.01); B01J 27/12 (2006.01); B01J 27/138 (2006.01); B01J 35/00 (2006.01); B01J 35/10 (2006.01); B01J 23/02 (2006.01); B01J 23/10 (2006.01); B01J 37/08 (2006.01); H01M 4/90 (2006.01); C25B 11/031 (2021.01); C25B 11/051 (2021.01); C25B 1/00 (2021.01); B22F 1/02 (2006.01); B22F 1/00 (2006.01); C25B 11/04 (2021.01); C25B 3/25 (2021.01); C25B 9/17 (2021.01); B82Y 30/00 (2011.01)
CPC C25B 11/091 (2021.01) [B01J 23/02 (2013.01); B01J 23/10 (2013.01); B01J 27/12 (2013.01); B01J 27/138 (2013.01); B01J 35/0013 (2013.01); B01J 35/0073 (2013.01); B01J 35/0086 (2013.01); B01J 35/1061 (2013.01); B01J 37/082 (2013.01); B22F 1/0088 (2013.01); B22F 1/02 (2013.01); C25B 1/00 (2013.01); C25B 3/25 (2021.01); C25B 9/17 (2021.01); C25B 11/031 (2021.01); C25B 11/04 (2013.01); C25B 11/051 (2021.01); H01M 4/90 (2013.01); B22F 1/0051 (2013.01); B82Y 30/00 (2013.01)] 30 Claims
OG exemplary drawing
 
1. A method of making core-shell nanoparticles comprising:
providing a catalytic core component comprising a catalytic material;
coating the catalytic core component with a temporary shell component;
heating the catalytic core component coated with the temporary shell component to convert the temporary shell component into a mesoporous structure;
depositing a shell material onto the mesoporous structure;
removing the mesoporous structure to provide a core-shell nanoparticle having a catalytic core encompassed by a mesoporous shell comprising the shell material,
wherein the temporary shell component comprises SiO2.