Fuel Cell Grade Cerium Oxide Electrolyte from Mexico
Dense cerium oxide powder for solid oxide fuel cell electrolytes, doped with gadolinium for ionic conductivity. Still classified under HTS 2846.10.00.10 as base cerium oxide compound. Enables operation at intermediate temperatures (500-700°C).
Duty Rate — Mexico → United States
5.5%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Specify dopant ratio (Ce0.9Gd0.1O1.95); excess shifts to mixtures category
• Thermal analysis (TGA/DSC) proves phase purity; amorphous forms risk reclassification
• Energy Dept. end-use declaration may trigger CFIUS review for critical materials