Tungsten Phosphide Hydrogenation Catalyst from Germany
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 — Germany → United States
10%
Rate breakdown
9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 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