CuFeS2 as an anode material with an enhanced electrochemical performance for lithium-ion batteries fabricated from natural ore chalcopyrite

Zhou, Jiahui; Jiang, Feng; Li, Sijie; Xu, Zhijie; Sun, Wei; Ji, Xiaobo; Yang, Yue

doi:10.1007/s10008-019-04284-8

Cited by 27 publications

(10 citation statements)

References 53 publications

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“…Anyway, there was no signal peak at 942 eV, reflecting that there was almost no Cu(II) in the prepared CuFeS 2 , which is consistent with the previously reported results that only monovalent copper atoms exist in chalcopyrite structures [ 21 ]. Figure 1 f is the high-resolution XPS spectrum of Fe 2p, the peaks at 724.83 eV and 711.15 eV are attributed to Fe 3+ 2p 1/2 and Fe 3+ 2p 3/2 , while the double peaks at 713.49 eV and 719.49 eV are attributed to Fe(II) [ 22 , 23 , 24 ]. Figure 1 g shows the high-resolution spectrum of S 2p, and the peak at 162.18 eV is attributed to the presence of S 2- .…”

Section: Resultsmentioning

confidence: 99%

Photothermal Regulated Nanozyme of CuFeS2 Nanoparticles for Efficiently Promoting Wound Healing Infected by Multidrug Resistant Bacteria

Liu

Zhao

et al. 2022

Nanomaterials

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Peroxidase-mediated chemokinetic therapy (CDT) can effectively resist bacteria; however, factors such as the high dosage of drugs seriously limit the antibacterial effect. Herein, CuFeS2 nanoparticles (NPs) nanozyme antibacterial system with the photothermal effect and peroxidase-like catalytic activity are proposed as a combined antibacterial agent with biosafety, high-efficiency, and broad-spectrum antibacterial ability. In addition, the as-obtained CuFeS2 NPs with a low doses of Cu+ and Fe3+ can change the permeability of bacterial cell membranes and break the antioxidant balance by consuming intracellular glutathione (GSH), which results in more conducive ROS production. Meanwhile, the photothermal heating can regulate the CuFeS2 NPs close to their optimal reaction temperature (60 °C) to release more hydroxyl radical in low concentrations of H2O2 (100 µM). The proposed CuFeS2 NPs-based antibacterial system achieve more than 99% inactivation efficiency of methicillin-resistant Staphylococcus aureus (106 CFU mL−1 MRSA), hyperspectral bacteria β-Escherichia coli (106 CFU mL−1 ESBL) and Pseudomonas aeruginosa (106 CFU mL−1 PA), even at low concentration (2 μg mL−1), which is superior to those of the conventional CuO NPs at 4 mg mL−1 reported in the literature. In vivo experiments further confirm that CuFeS2 NPs can effectively treat wounds infected by MRSA and promote the wound healing. This study demonstrates that excellent antibacterial ability and good biocompatibility make CuFeS2 NPs a potential anti-infection nanozyme with broad application prospects.

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Section: Resultsmentioning

confidence: 99%

Photothermal Regulated Nanozyme of CuFeS2 Nanoparticles for Efficiently Promoting Wound Healing Infected by Multidrug Resistant Bacteria

Liu

Zhao

et al. 2022

Nanomaterials

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“…Another ternary compound is chalcopyrite CuFeS 2 that may also have promising electrochemical properties, even without using any additive like RGO or CNTs or applying nanoparticles. Assuming a full conversion of the material with reduction of Cu + and Fe 3+ to their elemental state, as shown in eq , the theoretical specific capacity is 584 mAh g –1 We note that CuFeS 2 has been investigated as an anode material for LIBs, − but until now, to the best of our knowledge there are no reports for the application as the anode material in SIBs.…”

Section: Introductionmentioning

confidence: 99%

CuFeS₂ as a Very Stable High-Capacity Anode Material for Sodium-Ion Batteries: A Multimethod Approach for Elucidation of the Complex Reaction Mechanisms during Discharge and Charge Processes

Senkale

Indris

Etter

et al. 2021

ACS Appl. Mater. Interfaces

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Highly crystalline CuFeS2 containing earth-abundant and environmentally friendly elements prepared via a high-temperature synthesis exhibits an excellent electrochemical performance as an anode material in sodium-ion batteries. The initial specific capacity of 460 mAh g–1 increases to 512 mAh g–1 in the 150th cycle and then decreases to a still very high value of 444 mAh g–1 at 0.5 A g–1 in the remaining 550 cycles. Even for a large current density, a pronounced cycling stability is observed. Here, we demonstrate that combining the results of X-ray powder diffraction experiments, pair distribution function analysis, and 23Na NMR and Mössbauer spectroscopy investigations performed at different stages of discharging and charging processes allows elucidation of very complex reaction mechanisms. In the first step after uptake of 1 Na/CuFeS2, nanocrystalline NaCuFeS2 is formed as an intermediate phase, which surprisingly could be recovered during charging. On increasing the Na content, Cu+ is reduced to nanocrystalline Cu, while nanocrystalline Na2S and nanosized elemental Fe are formed in the discharged state. After charging, the main crystalline phase is NaCuFeS2. At the 150th cycle, the mechanisms clearly changed, and in the charged state, nanocrystalline Cu x S phases are observed. At later stages of cycling, the mechanisms are altered again: NaF, Cu2S, and Cu7.2S4 appeared in the discharged state, while NaF and Cu5FeS4 are observed in the charged state. In contrast to a typical conversion reaction, nanocrystalline phases play the dominant role, which are responsible for the high reversible capacity and long-term stability.

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“…Among the binary TMCs, chalcopyrite (CuFeS 2 ) nanostructures possess high structural merits because of their layered structures and the redox activity of copper atoms in the CuFeS 2 . Chalcopyrite is a naturally available ore for copper-based materials, and its widespread utilization has emerged during this decade . Further, CuFeS 2 nanostructures are explored for electrochemical energy conversion, storage, sensing, catalysis, and photoelectrochemical applications. − Recently, we demonstrated the charge-storage properties of the chalcopyrite toward supercapacitor applications .…”

Section: Introductionmentioning

confidence: 99%

Thermoelectric Driven Self-Powered Water Electrolyzer Using Nanostructured CuFeS₂ Plates as Bifunctional Electrocatalyst

Sathyaseelan

Kesavan

Manoharan

et al. 2021

ACS Appl. Energy Mater.

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The advancement of nonprecious electrocatalysts for the overall water splitting reaction have attained great significance in producing clean hydrogen fuel (H2). Herein, we are reporting the use of a copper iron sulfide (CuFeS2) nanostructure (prepared via the hydrothermal method) as a cost-effective and high-performance bifunctional catalyst for the electrochemical hydrogen evolution reaction (HER) and oxygen evolution reactions (OER). The physicochemical characterizations such as X-ray diffraction, laser Raman, X-ray photoelectron spectroscopic, and electron microscopic studies indicated the formation of platelike CuFeS2 nanostructures. Linear sweep voltammetric analysis of the CuFeS2 electrocatalyst demonstrated its superior electrocatalytic activities for effectively driving hydrogen/oxygen evolution reactions with a lower overpotentials (η10) of 136 and 320 mV in 1.0 M KOH electrolyte. Additionally, multipotential and durability studies of CuFeS2 electrocatalyst displayed better electrochemical properties for HER and OER reactions. Finally, a lab-scale CuFeS2 water electrolyzer was fabricated that demonstrated better performance metrics with a very low voltage of 1.66 V for water splitting reactions. As proof of the concept, a self-powered water electrolyzer system comprising a thermoelectric device (to convert waste thermal energy into electricity) that can drive the CuFeS2 water electrolyzer efficiently was demonstrated, highlighting its promise as a candidate for low-cost clean energy production.

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CuFeS2 as an anode material with an enhanced electrochemical performance for lithium-ion batteries fabricated from natural ore chalcopyrite

Cited by 27 publications

References 53 publications

Photothermal Regulated Nanozyme of CuFeS2 Nanoparticles for Efficiently Promoting Wound Healing Infected by Multidrug Resistant Bacteria

Photothermal Regulated Nanozyme of CuFeS2 Nanoparticles for Efficiently Promoting Wound Healing Infected by Multidrug Resistant Bacteria

CuFeS₂ as a Very Stable High-Capacity Anode Material for Sodium-Ion Batteries: A Multimethod Approach for Elucidation of the Complex Reaction Mechanisms during Discharge and Charge Processes

Thermoelectric Driven Self-Powered Water Electrolyzer Using Nanostructured CuFeS₂ Plates as Bifunctional Electrocatalyst

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CuFeS2 as an anode material with an enhanced electrochemical performance for lithium-ion batteries fabricated from natural ore chalcopyrite

Cited by 27 publications

References 53 publications

Photothermal Regulated Nanozyme of CuFeS2 Nanoparticles for Efficiently Promoting Wound Healing Infected by Multidrug Resistant Bacteria

Photothermal Regulated Nanozyme of CuFeS2 Nanoparticles for Efficiently Promoting Wound Healing Infected by Multidrug Resistant Bacteria

CuFeS2 as a Very Stable High-Capacity Anode Material for Sodium-Ion Batteries: A Multimethod Approach for Elucidation of the Complex Reaction Mechanisms during Discharge and Charge Processes

Thermoelectric Driven Self-Powered Water Electrolyzer Using Nanostructured CuFeS2 Plates as Bifunctional Electrocatalyst

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CuFeS₂ as a Very Stable High-Capacity Anode Material for Sodium-Ion Batteries: A Multimethod Approach for Elucidation of the Complex Reaction Mechanisms during Discharge and Charge Processes

Thermoelectric Driven Self-Powered Water Electrolyzer Using Nanostructured CuFeS₂ Plates as Bifunctional Electrocatalyst