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Polyolefin Recycling with Binary Cobalt–Nickel Nanosheets
Author(s) -
Su Baogang,
Wang Mengjun,
Lai Xiaofei,
Xu Yong
Publication year - 2025
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.202502431
Subject(s) - polyolefin , materials science , catalysis , cobalt , olefin fiber , nickel , polyethylene , polypropylene , fluid catalytic cracking , selectivity , chemical engineering , organic chemistry , metallurgy , nanotechnology , cracking , polymer , composite material , chemistry , layer (electronics) , engineering
Abstract The recycling of polyolefin plastics into value‐added chemicals has emerged as a new frontier regarding the current environmental concerns. In this work, it is demonstrated that binary cobalt‐nickel nanosheets (Co─Ni NSs) can serve as a non‐noble catalyst for recycling polyethylene and polypropylene plastics. Detailed analysis implies that the strong synergy between Co and Ni in binary Co─Ni NSs enables the electron transfer from Ni to Co and enhances adsorption abilities to H 2 and C─C chain, realizing the cracking of polyethylene plastic to liquid products with a selectivity of 83.3% at a conversion of >98%. Impressively, such a catalyst can realize the successful recycling of commercial polyolefin wastes into value‐added products. Given the enhanced stability, high selectivity to liquid products, and low‐cost of Co─Ni NSs, this work provides a feasible strategy for recycling polyolefin plastics, which will attract extensive attention in various fields including catalysis, materials, energy, and beyond.

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