Tungsten Phosphide Hydrogenation Catalyst from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, 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