Waste PET Plastic-Derived CoNi-Based Metal–Organic Framework as an Anode for Lithium-Ion Batteries

Wang, Yaxin; Wang, Huimin; Li, Shuyuan; Sun, Shiqi

doi:10.1021/acsomega.2c04264

Cited by 17 publications

(8 citation statements)

References 59 publications

(107 reference statements)

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“…The electronic conditions of Ni and Co atoms were changed and their electronic properties were improved . In addition, the peaks of Co at 786.4 and 802.5 eV can be ascribed to Co 2+ , indicating that metallic Co was easy to be oxidized instead of Ni. , The oxidation deactivation of 6% Ni–4% Co/char nanocatalyst was preferable to the oxidation of metallic Co species rather than Ni species because of the high oxygen affinity of Co, as reported by other studies. , The strengthened interaction between Ni and Co in the Ni–Co alloy, high dispersion of Ni nanoparticles, and high oxygen affinity of Co were beneficial to suppress agglomeration sintering and oxidation deactivation of active particles Ni loading on 6% Ni–4% Co/char.…”

Section: Resultsmentioning

confidence: 99%

Highly Efficient Transformation of Tar Model Compounds into Hydrogen by a Ni–Co Alloy Nanocatalyst During Tar Steam Reforming

Chen,

Liu,

Chen

et al. 2024

Environ. Sci. Technol.

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Hydrogen (H 2 ) production from coal and biomass gasification was considered a long-term and viable way to solve energy crises and global warming. Tar, generated as a hazardous byproduct, limited its large-scale applications by clogging and corroding gasification equipment. Although catalytic steam reforming technology was used to convert tar into H 2 , catalyst deactivation restricted its applicability. A novel nanocatalyst was first synthesized by the modified sol−gel method using activated biochar as the support, nickel (Ni) as the active component, and cobalt (Co) as the promoter for converting tar into H 2 . The results indicated that a high H 2 yield of 263.84 g H 2 / kg TMCs (Tar Model Compounds) and TMC conversion of almost 100% were obtained over 6% Ni−4% Co/char, with more than 30% increase in hydrogen yield compared to traditional catalysts. Moreover, 6% Ni−4% Co/char exhibited excellent resistance to carbon deposition by removing the nucleation sites for graphite formation, forming stable Ni−Co alloy, and promoting the char gasification reaction; resistance to oxidation deactivation due to the high oxygen affinity of Co and reduction of the oxidized nickel by H 2 and CO; resistance to sintering deactivation by strengthened interaction between Ni and Co, high specific surface area (920.61 m 2 /g), and high dispersion (7.3%) of Ni nanoparticles. This work provided a novel nanocatalyst with significant potential for long-term practical applications in the in situ conversion of tar into H 2 during steam reforming.

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Section: Resultsmentioning

confidence: 99%

Highly Efficient Transformation of Tar Model Compounds into Hydrogen by a Ni–Co Alloy Nanocatalyst During Tar Steam Reforming

Chen,

Liu,

Chen

et al. 2024

Environ. Sci. Technol.

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“…Different research groups reported the preparation of other PET-derived-BDC MOFs containing Cu(II) [ 129–131 ], Zn(II) [ 132 ], Sn(II) [ 133 ], Ca(II) [ 134 ], Ba(II) [ 135 ], Ti(IV) [ 136 ], Co(II) and Ni(II) [ 137 ], as well as a lanthanide based (Tb) MOFs [ 138 ]. For all these MOFs, a two-step synthesis was proposed, where the BDC ligand was first produced from PET by either alkalosis, acidolysis, solvolysis or via a hydrothermal depolymerization with ethylene glycol.…”

Section: Plastic Waste As Linker Source For Mofs Adsorbentsmentioning

confidence: 99%

Metal-organic frameworks and plastic: an emerging synergic partnership

Mastropietro

2023

Science and Technology of Advanced Materials

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Mismanagement of plastic waste results in its ubiquitous presence in the environment. Despite being durable and persistent materials, plastics are reduced by weathering phenomena into debris with a particle size down to nanometers. The fate and ecotoxicological effects of these solid micropollutants are not fully understood yet, but they are raising increasing concerns for the environment and people’s health. Even if different current technologies have the potential to remove plastic particles, the efficiency of these processes is modest, especially for nanoparticles. Metal-organic frameworks (MOFs) are crystalline nano-porous materials with unique properties, have unique properties, such as strong coordination bonds, large and robustus porous structures, high accessible surface areas and adsorption capacity, which make them suitable adsorbent materials for micropollutants. This review examines the preliminary results reported in literature indicating that MOFs are promising adsorbents for the removal of plastic particles from water, especially when MOFs are integrated in porous composite materials or membranes, where they are able to assure high removal efficiency, superior water flux and antifouling properties, even in the presence of other dissolved co-pollutants. Moreover, a recent trend for the alternative preparation of MOFs starting from plastic waste, especially polyethylene terephthalate, as a sustainable source of organic linkers is also reviewed, as it represents a promising route for mitigating the impact of the costs deriving from the widescale MOFs production and application. This connubial between MOFs and plastic has the potential to contribute at implementing a more effective waste management and the circular economy principles in the polymer life cycle.

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“…Recently, we proposed a novel and efficient PET degradation method, utilizing alkali under alcoholic ether solvent conditions. 8 However, our experimental exploration of PET degradation revealed that various factors influenced the reaction. Considering and controlling all of these factors to obtain optimal reaction conditions are a time-consuming and intricate process.…”

Section: ■ Introductionmentioning

confidence: 98%

“…Yoshioka et al introduced a heterogeneous hydrolysis method catalyzed by 3−9 M H 2 SO 4 at atmospheric pressure, achieving complete PET degradation within 12 h. 5 Furthermore, Karayannidis et al observed a notable influence of temperature on the yield of terephthalic acid (BDC) through high-temperature reactions in a 2 L stainless-steel highpressure reactor, achieving an impressive 98% yield at 200 °C. 6 Additionally, our research group previously achieved complete PET degradation through hydrothermal treatment at 210 °C for 8 h. 7 However, existing PET degradation methods often necessitate harsh reaction conditions, such as strong acids or bases and high temperatures and pressures, which not only consume time and energy but also pose environmental concerns. Recently, we proposed a novel and efficient PET degradation method, utilizing alkali under alcoholic ether solvent conditions.…”

Section: ■ Introductionmentioning

confidence: 99%

Exploring the Ambient-Temperature Degradation Reactions of PET through Two-Step Machine Learning and High-Throughput Experimentation

Wang,

Li,

Meng

et al. 2024

ACS Sustainable Chem. Eng.

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Poly(ethylene terephthalate) (PET) is a prevalent single-use plastic, posing a significant threat to the environment and human health due to its nondegradable properties. To confront this pressing issue, there is an urgent need for a method of PET degradation that is not only efficient but also cost-effective. Recognizing the intricate interactions of parameters, we propose an innovative approach that integrates two-step machine learning (ML) techniques to achieve our objective while minimizing experimental costs. A dataset comprising 120 distinct PET degradation conditions was created using high-throughput experimentation (HTE). Initially, eight ML algorithms were employed to train and predict performance, with the decision tree model yielding the most favorable outcomes. Subsequently, the trained ML model was expanded to encompass an extensive array of hypothetical reaction conditions, facilitating the identification of degradation formulations that exhibit exceptional performance. Additionally, through the integration of feature importance analysis, we systematically reconstruct a relevant chemical space. Following regression training and prediction, we identified reaction conditions with significantly higher degradation rates at ambient temperature. The utilization of these conditions not only enhances the efficacy of research and development, leading to reduced experimental costs, but also provides valuable insights for future investigations into PET degradation. In contrast to conventional, resource-intensive trial-and-error approaches, our established platform facilitates the assessment of PET degradation rates across diverse reaction conditions, enabling a preliminary screening for process optimization. Consequently, this approach contributes to the mitigation of solid waste pollution and the advancement of sustainable economic development.

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Waste PET Plastic-Derived CoNi-Based Metal–Organic Framework as an Anode for Lithium-Ion Batteries

Cited by 17 publications

References 59 publications

Highly Efficient Transformation of Tar Model Compounds into Hydrogen by a Ni–Co Alloy Nanocatalyst During Tar Steam Reforming

Highly Efficient Transformation of Tar Model Compounds into Hydrogen by a Ni–Co Alloy Nanocatalyst During Tar Steam Reforming

Metal-organic frameworks and plastic: an emerging synergic partnership

Exploring the Ambient-Temperature Degradation Reactions of PET through Two-Step Machine Learning and High-Throughput Experimentation

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