Site-Selective Polyolefin Hydrogenolysis on Atomic Ru for Methanation Suppression and Liquid Fuel Production

Chu, Mingyu; Wang, Xianpeng; Wang, Xuchun; Lou, Xiangxi; Zhang, Congyang; Cao, Muhan; Wang, Lu; Li, Youyong; Liu, Sibao; Sham, Tsun-Kong; Zhang, Qiao; Chen, Jinxing

doi:10.34133/research.0032

Site-Selective Polyolefin Hydrogenolysis on Atomic Ru for Methanation Suppression and Liquid Fuel Production

Journal Article · Thu Jan 12 23:00:00 EST 2023 · Research

DOI:https://doi.org/10.34133/research.0032· OSTI ID:2423613

Chu, Mingyu ^[1]; Wang, Xianpeng ^[1]; Wang, Xuchun ^[2]; Lou, Xiangxi ^[3]; Zhang, Congyang ^[2]; Cao, Muhan ^[1]; Wang, Lu ^[1]; Li, Youyong ^[1]; Liu, Sibao ^[4]; Sham, Tsun-Kong ^[5]; Zhang, Qiao ^[1]; Chen, Jinxing ^[1]

Soochow University, Suzhou (China)
Soochow University, Suzhou (China); Univ. of Western Ontario, London, ON (Canada)
Soochow University, Suzhou (China); Harbin Engineering University (China)
Tianjin Univ. (China)
Univ. of Western Ontario, London, ON (Canada)

Catalytic hydrogenolysis of end-of-life polyolefins can produce value-added liquid fuels and therefore holds great promises in plastic waste reuse and environmental remediation. The major challenge limiting the recycling economic benefit is the severe methanation (usually >20%) induced by terminal C–C cleavage and fragmentation in polyolefin chains. Here, we overcome this challenge by demonstrating that Ru single-atom catalyst can effectively suppress methanation by inhibiting terminal C–C cleavage and preventing chain fragmentation that typically occurs on multi-Ru sites. The Ru single-atom catalyst supported on CeO₂ shows an ultralow CH₄ yield of 2.2% and a liquid fuel yield of over 94.5% with a production rate of 314.93 g_fuels g_Ru^-1 h^-1 at 250 °C for 6 h. Such remarkable catalytic activity and selectivity of Ru single-atom catalyst in polyolefin hydrogenolysis offer immense opportunities for plastic upcycling.

View Accepted Manuscript (DOE)

Research Organization:: Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF)

Grant/Contract Number:: AC02-06CH11357

OSTI ID:: 2423613

Journal Information:: Research, Journal Name: Research Vol. 6; ISSN 2639-5274

Publisher:: AAASCopyright Statement

Country of Publication:: United States

Language:: English

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