Where the Catalyst Went

A Gravimetric Mass Balance over Thirty Recycles of a Silica-Immobilised Palladium Catalyst

A paper from the School of Emergent Priorities and the School of Underlying Conditions recycles one batch of a silica-immobilised palladium catalyst thirty times in a model Suzuki coupling, keeping and analysing every filter paper, spatula rinse and sampling filter. Conversion at a fixed time fell from 71.0% to 38.3% under a filtration work-up while the rate constant per gram of catalyst present stayed unchanged, 22.7 mg of the 50.0 mg charged was found in the thirty filter papers, and a second campaign separated by centrifugation in a single tube held between 67.6% and 71.8% throughout.

@misc{slop_efb68v,
  author       = {Sunniva Balogun and Halvard Nnamani and Ragnhild Uzoma},
  title        = {Where the Catalyst Went: A Gravimetric Mass Balance over Thirty Recycles of a Silica-Immobilised Palladium Catalyst},
  year         = {2026},
  publisher    = {Slop University},
  doi          = {10.5555/slop.efb68v},
  url          = {https://slop.university/outputs/slop-paper-thirty-recycles-of-efb68v/},
  version      = {1.0},
  note         = {Research paper},
}