Treasuring trash: Pt/SrTiO3 catalysts process plastic waste into high-value materials

Ian L. Peczak, Robert M. Kennedy, Ryan A. Hackler, Byeongdu Lee, Max Meirow, Erik Luijten, Kenneth R. Poeppelmeier*, Massimiliano Delferro*

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

1 Scopus citations


Single-use plastics are ubiquitous throughout modern society because they have properties that make them desirable in a wide variety of applications, including low cost of production, high thermal and chemical stability, and tunable mechanical properties. Several of the recycling methods currently used to process single-use plastic waste, such as mechanical recycling and pyrolysis, do not selectively process plastic materials into uniform products, as would be advantageous for repurposing these materials in pursuit of a circular economy. Catalytic hydrogenolysis, whereby C–C bonds in polymers are broken over a supported catalyst in the presence of H2, is a promising approach to converting plastics into value-added products that can be sold commercially without further purification. In this account, we present some recent advances in polyolefin hydrogenolysis, with a focus on Pt nanoparticles on SrTiO3 nanocuboid supports (Pt/STO). Current developments in this field, general challenges, and future directions are discussed.

Original languageEnglish (US)
Pages (from-to)3296-3321
Number of pages26
Issue number10
StatePublished - Oct 4 2023


  • catalysis
  • chemical recycling
  • economic viability
  • hydrogenolysis
  • nanomaterials
  • perovskites
  • scale-up
  • tribology
  • upcycling

ASJC Scopus subject areas

  • General Materials Science


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