Electrocatalytic upgrading of polyethylene terephthalate plastic to formic acid at an industrial-scale current density via Ni-MOF@MnCo-OH catalyst

Li, Wenbo; Xiao, Difei; Gong, Xueqin; Xu, Xianbin; Ma, Fahao; Wang, Zeyan; Wang, Peng; Liu, Yuanyuan; Dai, Ying; Zheng, Zhaoke; Fan, Yuchen; Huang, Baibiao

doi:10.1016/j.cej.2023.148087

Chemical Engineering Journal

2024

DOI: 10.1016/j.cej.2023.148087

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Electrocatalytic upgrading of polyethylene terephthalate plastic to formic acid at an industrial-scale current density via Ni-MOF@MnCo-OH catalyst

Wenbo Li,

Difei Xiao,

Xueqin Gong

et al.

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Cited by 4 publications

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Hybrid Oxidization of Ethylene Glycol on Defective Ag‐PtPd Electrocatalyst Beyond 3000 h Stability at an Industrial‐Scale Current Density

Yang,

Cao,

Huang

et al. 2024

Adv Funct Materials

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Electrochemical oxidization of crude ethylene glycol (EG) to fine chemicals driven by sustainable energy is an eco‐friendly solution to the upcycling of end‐of‐life polyethylene terephthalate (PET) wastes. Here, pseudo Agx‐PtyPdz core–shell electrocatalyst capable of hybrid oxidation of EG to formate (FA) is designed and synthesized. The trimetallic system consists of Ag nanowire and ultrathin PtPd alloy skin with defects, such as holes and grooves. The defects expose the Ag core to the surroundings and convert Ag0 to Ag2+ active species at appropriate potential (> 1.2 V vs RHE). Thus, hybrid EG oxidization reaction is realized on the Agx‐PtyPdz electrocatalyst, where PtPd skin catalyzes EG oxidization through conventional Faradaic electrode process owing to inherent activities of Pt and Pd, while Ag2+ serves as auxiliar oxidant to oxidize EG/intermediates (non‐Faradaic reaction). Such a hybrid oxidization strategy reinforces the removal of adsorbates on Agx‐PtyPdz electrocatalyst and refresh the active sites timely. Eventually, ultrahigh specific activity (24.45 A mg−1PtPd) and long‐term stability (> 3000 h at current density ≥ 400 mA cm−2) are delivered by the system. The finding of Ag2+‐enhanced alcohol oxidization reactions introduces a new paradigm for designing high‐performance electrocatalysts for energy and environmental applications.

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Hybrid Oxidization of Ethylene Glycol on Defective Ag‐PtPd Electrocatalyst Beyond 3000 h Stability at an Industrial‐Scale Current Density

Yang,

Cao,

Huang

et al. 2024

Adv Funct Materials

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Interface Engineering of Network‐Like 1D/2D (NHCNT/Ni─MOF) Hybrid Nanoarchitecture for Electrocatalytic Water Splitting

Bhosale,

Murugan,

Kim

et al. 2024

Small Methods

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Here, integrated functional components into a hybrid heterostructure via highly stabilized network‐like interconnected electronic nanoarchitecture of 1D N‐doped holey‐carbon nanotube (NHCNT) with 2D nickel─metal–organic framework (Ni─MOF) nanosheets are developed as high‐performance electrocatalyst for overall water splitting. The NHCNT promoting electron transport pathways in electrocatalyst, and formation of holes in nanotubes further enables excellent diffusion of ions for promoting the overall reaction rate. An excellent combination of 1D/2D structure of NHCNT/Ni─MOF‐4 electrocatalyst exhibits excellent oxygen evolution reaction (η10 = 207.8 mV, and Tafel = 62.6 mV dec−1) and reasonable hydrogen evolution reaction (η10 = 159.8 mV, and Tafel = 107.69 mV dec−1) activity with consistent and stable performance in a 1 m KOH. The highly interconnected network structure contains Ni2+ and Ni3+ species in the NHCNT/Ni─MOF‐4 electrocatalyst, which possesses high specific surface area (SSA) (235.53 m2 g−1), electrochemically active surface area (ECSA) (796.2 cm2), mass activity (4.76 mA mg−1), and turnover frequency (3.99 × 10−2 s−1), which provide remarkable electrocatalytic performance via generating synergy between the NHCNT and Ni─MOF. For overall water splitting, NHCNT/Ni─MOF‐4 attains a low cell voltage (1.77 V@10 mA cm−2).

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Self-powered energy-efficient electrochemical nitrite reduction coupled with sulfion oxidation for ammonia synthesis and sulfur recovery over hierarchical cobalt sulfide nanostructures

Zhang,

Wang,

Jiang

et al. 2025

Applied Catalysis B: Environment and Energy

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Electrocatalytic upgrading of polyethylene terephthalate plastic to formic acid at an industrial-scale current density via Ni-MOF@MnCo-OH catalyst

Cited by 4 publications

References 50 publications

Hybrid Oxidization of Ethylene Glycol on Defective Ag‐PtPd Electrocatalyst Beyond 3000 h Stability at an Industrial‐Scale Current Density

Hybrid Oxidization of Ethylene Glycol on Defective Ag‐PtPd Electrocatalyst Beyond 3000 h Stability at an Industrial‐Scale Current Density

Interface Engineering of Network‐Like 1D/2D (NHCNT/Ni─MOF) Hybrid Nanoarchitecture for Electrocatalytic Water Splitting

Self-powered energy-efficient electrochemical nitrite reduction coupled with sulfion oxidation for ammonia synthesis and sulfur recovery over hierarchical cobalt sulfide nanostructures

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