Synergy Effects in a Bimetallic Ru ─ Pt Alloy Catalyst for Low‐H <sub>2</sub> ‐Pressure Hydrogenolysis of Low‐Density Polyethylene
Hydrogenolysis of low-density polyethylene (LDPE) under low pressure of H<sub>2</sub> has been accomplished with a Ru─Pt bimetallic alloy catalyst. Using Ru<sub>5</sub>Pt<sub>1</sub>/CeO<sub>2</sub> (atomic ratio of Ru to Pt is 5:1) as a catalyst, LDPE was efficiently converted (97.6 ± 2.5% conversion) to gas and liquid hydrocarbons under 5 bar of H<sub>2</sub> at 200 °C, whereas Ru/CeO<sub>2</sub> and Pt/CeO<sub>2</sub> showed much lower conversion (45.7 ± 3.7% and < 1%, respectively), under the same conditions. Mechanistic studies suggested that the higher activity of Ru<sub>5</sub>Pt<sub>1</sub>/CeO<sub>2</sub> can be attributed to the synergistic effect of Ru (cleavage of C─C bond) and Pt (acceleration of Ru─alkyl hydrogenation step) on the catalyst surface.
Authors
- Hiroki Miura (ORCID: https://orcid.org/0000-0002-2488-4432)
- Kyoko Nozaki
- Tetsuya Shishido (ORCID: https://orcid.org/0000-0002-8475-4226)
- Kohei Takahashi (ORCID: https://orcid.org/0000-0003-2098-3879)
- Katsutoshi Nomoto
- Yukari Yamazaki (ORCID: https://orcid.org/0000-0001-9373-8618)
- Satoshi Yamamoto (ORCID: https://orcid.org/0000-0002-9865-0970)
- Weihan Sun (ORCID: https://orcid.org/0009-0007-6895-4838)
- Xiongjie Jin (ORCID: https://orcid.org/0000-0001-5991-5561)
- Akira Nakayama (ORCID: https://orcid.org/0000-0002-7330-0317)
Institutions
- Tokyo Metropolitan University (JP)
- The University of Tokyo (JP)
Publication Details
- Journal
- Chemistry - A European Journal
- Published
- 2025-11-02
- DOI
- https://doi.org/10.1002/chem.202502158
- Primary Topic
- Organometallic Complex Synthesis and Catalysis
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Ministry of Education, Culture, Sports, Science and Technology
- University of Tokyo
- Japan Society for the Promotion of Science
- Exploratory Research for Advanced Technology