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

Kim, Jueun; Sun, Simin; Kim, Donghyeon; Park, Byung Gwan; Lee, Hojeong; Huang, Wenyu; An, Kwangjin

doi:10.1016/j.checat.2024.101076

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

Journal Article · Tue Aug 20 00:00:00 EDT 2024 · Chem Catalysis

DOI:https://doi.org/10.1016/j.checat.2024.101076· OSTI ID:2476516

Kim, Jueun ^[1]; Sun, Simin ^[2]; Kim, Donghyeon ^[1]; Park, Byung Gwan ^[1]; Lee, Hojeong ^[1]; ^[2]; An, Kwangjin ^[1]

Ulsan National Institute of Science and Technology (UNIST), Ulsan (Korea, Republic of)
Ames Laboratory, and Iowa State University, Ames, IA (United States)

The increasing amount of plastic waste poses serious environmental problems that threaten both ecosystems and human well-being. Hydrogenolysis has been widely studied as an effective approach for converting polyolefins into high-value liquids and waxy fuels. Their multifaceted reaction mechanism, including dehydrogenation, C–C bond cleavage, and hydrogenation, highlights the need for sophisticated catalyst design. The suppression of methane production, a persistent challenge in polyolefin hydrogenolysis, requires precise control of the cleavage site and inhibition of successive C–C bond cleavage. This delicate balance is achieved by carefully tuning the size and structure of metals. In this review, we investigate the effects of the size and structure of active sites on their catalytic activity and selectivity for the hydrogenolysis of polyolefins, including polyethylene and polypropylene. In conclusion, a fundamental understanding of hydrogenolysis mechanisms, combined with strategic synthetic methodologies, is crucial for creating efficient catalysts with tailored properties.

View Accepted Manuscript (DOE)

Research Organization:: Ames Laboratory (AMES), Ames, IA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES); Basic Science Research Program; Engineering Research Center of Excellence Program; Climate Environment R&D Program; Regional Innovation Strategy (RIS); Ministry of Science and ICT; Ministry of Education(MOE); Technology Innovation Program

Grant/Contract Number:: AC02-07CH11358

OSTI ID:: 2476516

Report Number(s):: IS-J--11,434

Journal Information:: Chem Catalysis, Journal Name: Chem Catalysis Journal Issue: 9 Vol. 4; ISSN 2667-1093

Publisher:: Cell PressCopyright Statement

Country of Publication:: United States

Language:: English

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