Tungsten Phosphide Hydrogenation Catalyst from Mexico
WP nanoparticles emerging as non-noble metal catalyst for hydrodeoxygenation of pyrolysis oils. Inorganic tungsten phosphide under HTS 3815.90.1000 for reaction initiation. High activity rivals traditional sulfide catalysts.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• TEM/SEM images showing nanoparticle morphology (<20 nm) for activity proof
• Hydrogenation performance data distinguishing from wear-resistant phosphides
• Phosphorus assay confirming stoichiometric WP composition