Efficient Hydrogenolysis of Consumer-Grade High-Density Polyethylene Wastes over MgAl-Layered Double Oxide-Supported Ru Catalysts

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 20, 2024

Hydrogenolysis of consumer-grade high-density polyethylene (HDPE) is a pivotal strategy for upcycling plastic waste into value-added fuels. Though Ru catalysts demonstrated activity in the hydrogenolysis inert C–C bonds HDPE, precise design nanoparticles still represents critical challenge to boost performance. Here, ultrafine (∼1 nm) supported on MgAl-layered double oxides (MgAl-LDO) exhibited selectivity over 90% liquid fuels, lubricants, and waxes HDPE. By tuning thermal treatments Mg/Al ratios, Ruδ+/Ru0 ratio acidity/basicity MgAl-LDO were determined as performance descriptors. Notably, confining effects layered structure can be optimized facilitate effective dispersion nanoparticles, even at elevated loadings up 9%. Moreover, Ru/Mg1Al-LDO catalyst good applicability various HDPE substrates excellent stability, maintaining five recycling runs.

Language: Английский

Elucidating the effect of nanocube support morphology on the hydrogenolysis of polypropylene over Ni/CeO₂ catalysts

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 10, 2024

The nanocube support morphology improves C–C scission rates of Ni/CeO 2 catalysts to generate shorter chain liquid hydrocarbon mixtures in the catalytic hydrogenolysis process.

Language: Английский

The role of size and structure of catalytic active sites in polyolefin hydrogenolysis

Chem Catalysis, Journal Year: 2024, Volume and Issue: 4(9), P. 101076 - 101076

Published: Aug. 20, 2024

Language: Английский