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Biocarbon-confined bimetallic FeCo metal-organic framework orthogonal nanosheet arrays for industry-level ethylene glycol oxidation
Mengjin Li, Tian Xia, Mengyu Wang, Yujie Peng, Sihan Zhang, Xueliang Jiang, Huan Yang*
https://doi.org/10.1016/j.cjsc.2025.100627
ABSTRACT
Ethylene glycol oxidation reaction (EGOR) is important to address the environmental issues caused by the increasing production of polyethylene terephthalate (PET). Metal organic frameworks (MOFs) with superior stability, high specific surface area and excellent catalytic performance, can convert PET into valuable products through EGOR and hydrogen evolution reaction (HER). Herein, a microbial template strategy was adopted to prepare carbon sphere-supported orthogonal nanosheet bimetallic MOF catalysts. The prepared catalyst needs only 1.62 V, 357 mV, and 1.83 V at a current density of 100 mA cm-2 for EGOR, HER, and EGOR//HER, respectively. More importantly, it can stably perform for at least 160 h at a current density of 500 mA cm-2. The high specific surface area of the bimetallic MOF and the synergistic effect of the yeast carbon shell increase the contact area between the intrinsic active sites and *OH and EG, thus improving the EGOR and HER catalytic activity and stability. This work provides a novel strategy to construct bimetallic orthogonal electrocatalysts with efficient HER//EGOR performance, which is of great significance for achieving sustainable energy conversion and environmental purification.
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