Liu, Xingmin ; Xu, Dan ; Ding, Hui ; Widenmeyer, Marc ; Xie, Wenjie ; Mellin, Maximilian ; Qu, Fangmu ; Chen, Guoxing ; Zhang, Ye Shui ; Zhang, Zhenyu ; Rashid, Aasir ; Molina-Luna, Leopoldo ; Hofmann, Jan P. ; Riedel, Ralf ; Brett, Dan J. L. ; Weidenkaff, Anke (2023)
Multi-scale designed CoxMn3-xO4 spinels: Smart pre-catalysts towards high-efficiency pyrolysis-catalysis recycling of waste plastics.
In: Applied Catalysis B: Environmental, 324
doi: 10.1016/j.apcatb.2022.122271
Artikel, Bibliographie

Kurzbeschreibung (Abstract)

In this work, multiscale designed 3-dimensional (3D) rose-like CoxMn3–xO4 spinel smart pre-catalysts that can self-convert into the targeted active site-rich Co/MnO catalysts were developed for the high-efficiency conversion of waste plastics. At a pre-catalyst to plastic weight ratio of 1:14, the carbon nanotube composites (CNCs) and H2 yield can reach 41 wt% and 36 mmol·g˗1pla., while the specific CNCs and H2 yield can be as high as 7.48 g˗1cat. and 634 mmol·g˗1pla.·g˗1cat. The latter is more than one order of magnitude higher than reported in the literature. Density functional theory calculations indicate that the Co/MnO catalyst exhibits excellent activity in the dissociation of alkanes (e.g., CH4). The resulting CNCs demonstrated excellent discharge capability and extended cycling performance when used as a lithium-ion battery anode. This work revealed an innovative recipe and novel insight for developing advanced catalyst materials as the next generation catalysts for the conversion of waste plastics.

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