Atomic layer deposition of aluminum-doped zinc oxide onto MoO3 nanorods toward enhanced lithium storage performance

Ji, Xin; Yao, Tianhao; Liu, Xin; Ma, Dandan; Han, Xiaogang; Wang, Hongkang

doi:10.1016/j.scriptamat.2023.115769

Cited by 17 publications

(8 citation statements)

References 52 publications

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“…After copper intercalation, the nanobelts still maintain their original smooth and flat morphology. In Figure E,F, the high-resolution TEM (HR-TEM) images of α-MoO 3 show lattice fringes with a spacing of 0.386 nm, corresponding to the surface spacing of the (110) plane . After copper is intercalated into the vdW band gap of α-MoO 3 , the stripe spacing of MoO 3– x /Cu is 0.383 nm, which indicates that there is no significant change in the (110) crystal plane and the intercalation of copper did not affect the lattice spacing of α-MoO 3 .…”

Section: Resultsmentioning

confidence: 97%

“…In Figure 1E,F, the high-resolution TEM (HR-TEM) images of α-MoO 3 show lattice fringes with a spacing of 0.386 nm, corresponding to the surface spacing of the (110) plane. 52 After copper is intercalated into the vdW band gap of α-MoO 3 , the stripe spacing of MoO 3−x /Cu is 0.383 nm, which indicates that there is no significant change in the (110) crystal plane and the intercalation of copper did not affect the lattice spacing of α-MoO 3 . Selected area electron diffraction (SAED) patterns (Figure 1E,F, insets) of the nanocrystals show that the nanoribbons maintain their crystallinity.…”

Section: Preparation and Characterization Of Copper-mentioning

confidence: 95%

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Ultralow Loading Copper-Intercalated MoO₃ Nanobelts with High Activity against Antibiotic-Resistant Bacteria

Liu,

Zuo,

et al. 2024

ACS Appl. Mater. Interfaces

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In recent years, the infection rate of antibiotic resistance has been increasing year by year, and the prevalence of super bacteria has posed a great threat to human health. Therefore, there is an urgent need to find new antibiotic alternatives with long-term inhibitory activity against a broad spectrum of bacteria and microorganisms in order to avoid the proliferation of more multidrug-resistant (MDR) bacteria. The presence of natural van der Waals (vdW) gaps in layered materials allows them to be easily inserted by different guest species, providing an attractive strategy for optimizing their physicochemical properties and applications. Here, we have successfully constructed a copper-intercalated α-MoO 3 nanobelt based on nanoenzymes, which is antibacterial through the synergistic effect of multiple enzymes. Compared with α-MoO 3 , MoO 3−x /Cu nanobelts with a copper loading capacity of 2.11% possess enhanced peroxidase (POD) catalytic activity and glutathione (GSH) depletion, indicating that copper intercalation significantly improves the catalytic performance of the nanoenzymes. The MoO 3−x /Cu nanobelts are effective in inducing POD and oxidase (OXD) and catalase (CAT) activities in the presence of H 2 O 2 and O 2 , which resulted in the generation of large amounts of reactive oxygen species (ROS), which were effective in bacterial killing. Interestingly, MoO 3−x /Cu nanobelts can serve as glutathione oxidase (GSHOx)-like nanoenzymes, which can deplete GSH in bacteria and thus significantly improve the bactericidal effect. The multienzyme-catalyzed synergistic antimicrobial strategy shows excellent antimicrobial efficiency against β-lactamase-producing Escherichia coli (ESBL-E. coli) and methicillin-resistant Staphylococcus aureus (MRSA). MoO 3−x /Cu exhibits excellent spectral bactericidal properties at very low concentrations (20 μg mL −1 ). Our work highlights the wide range of antibacterial and antiinfective biological applications of copper-intercalated MoO 3−x /Cu nanobelt catalysts.

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Section: Resultsmentioning

confidence: 97%

Section: Preparation and Characterization Of Copper-mentioning

confidence: 95%

Ultralow Loading Copper-Intercalated MoO₃ Nanobelts with High Activity against Antibiotic-Resistant Bacteria

Liu,

Zuo,

et al. 2024

ACS Appl. Mater. Interfaces

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“…32 Furthermore, the peaks in Figure 3c positioned at 1021.68 and 1044.75 eV are attributed to Zn 2p 3/2 and Zn 2p 1/2 of Zn 2+ . 36,37 Notably, in Figure 3d, the peak at a binding energy of 530.40 eV is attributed to lattice O 2 within ZnO. 38 Moreover, the presence of O 2 species, particularly in hydroxyl groups adsorbed on the surface of Au/ZnO NSs, is evident from the peak centered at a binding energy of 532.01 eV.…”

Section: Optical and Structural Characterizations Of Au/mentioning

confidence: 94%

Tailored Core–Shell Au/ZnO Hybrid Nanostars for Photochemical Water Splitting

Kaur,

Biswas,

Haldar

et al. 2024

ACS Appl. Nano Mater.

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Nanostructured hybrids that combine metals and semiconductors exhibit significant potential as photocatalysts for various reactions. Among these, core–shell plasmonic noble metal–semiconductor nanostructures, such as Au/ZnO nanostars (NSs), are highly effective catalysts for photocatalytic water splitting. This study presents a simple method for synthesizing Au/ZnO NSs and comprehensively characterizes them by using various spectroscopic and microscopic techniques. The synthesized Au/ZnO NSs exhibit very high efficiencies in hydrogen (H2) and oxygen (O2) evolution when used as a catalyst for photocatalytic water splitting. This heightened photocatalytic activity can be attributed to the efficient suppression of the scavenging activity of Au nanoparticles. Additionally, the anisotropic star-shaped morphology of the Au component in the catalyst contributes to an increased surface area that promotes an enhanced interaction between the catalyst's components. This interaction facilitates facile interfacial charge transfer at the interface, resulting in an improved performance. Moreover, the plasmonic response of the Au core surrounded by ZnO nanostructures enhances the catalyst’s light utilization capability, contributing to its superior performance. This synthesis method represents a significant advancement and paves the way for future developments in the design of plasmon-semiconductor nanostructures for energy conversion applications.

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“…With the merits of high working voltage, large storage capacity, and environmental friendliness, lithium-ion batteries (LIBs) have been widely used in portable electronics, electric vehicles, and smart grids. However, the graphite anode of the commercial LIBs is still encountering several challenges such as poor rate performance, low initial Coulombic efficiency (ICE), and Li-dendrite-induced safety issue owing to the sluggish lithium-ion diffusion coefficient within layered graphite and the low working potential. − As another commercial anode for LIBs, Li 4 Ti 5 O 12 exhibits a high rate performance with a high operating potential (∼1.55 V vs. Li/Li + ), which can avoid the formation of lithium dendrites. However, Li 4 Ti 5 O 12 shows a lower theoretical specific capacity (175 mAh g –1 ), which limits the energy density of LIBs .…”

Section: Introductionmentioning

confidence: 99%

Enhancing the Lithium Storage Performance of the Nb₂O₅ Anode via Synergistic Engineering of Phase and Cu Doping

Dong,

Yao,

et al. 2024

ACS Appl. Mater. Interfaces

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Nb 2 O 5 has been viewed as a promising anode material for lithium-ion batteries by virtue of its appropriate redox potential and high theoretical capacity. However, it suffers from poor electric conductivity and low ion diffusivity. Herein, we demonstrate the controllable fabrication of Cu-doped Nb 2 O 5 with orthorhombic (T− Nb 2 O 5 ) and monoclinic (H−Nb 2 O 5 ) phases through annealing the solvothermally presynthesized Nb 2 O 5 precursor under different temperatures in air, and the Cu doping amount can be readily controlled by the concentration of the precursor solution, whose effect on the lithium storage behaviors of the Cu-doped Nb 2 O 5 is thoroughly investigated. H−Nb 2 O 5 shows obvious redox peaks (Nb 5+ /Nb 4+ and Nb 4+ /Nb 3+ ) with much higher capacity and better cycling stability than those for the widely investigated T−Nb 2 O 5 . When introducing appropriate Cu doping, the optimized H−Cu 0.1 −Nb 2 O 5 electrode shows greatly enhanced conductivity and lower diffusion barrier as revealed by the theoretical calculations and electrochemical characterizations, delivering a high reversible capacity of 203.6 mAh g −1 and a high capacity retention of 140.8 mAh g −1 after 5000 cycles at 1 A g −1 , with a high initial Coulombic efficiency of 91% and a high rate capacity of 144.2 mAh g −1 at 4 A g −1 . As a demonstration for full-cell application, the H−Cu 0.1 −Nb 2 O 5 ||LiFePO 4 cell displays good cycling performance, exhibiting a reversible capacity of 135 mAh g −1 after 200 cycles at 0.2 A g −1 . More importantly, this work offers a new synthesis protocol of the monoclinic Nb 2 O 5 phase with high capacity retention and improved reaction kinetics.

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Atomic layer deposition of aluminum-doped zinc oxide onto MoO3 nanorods toward enhanced lithium storage performance

Cited by 17 publications

References 52 publications

Ultralow Loading Copper-Intercalated MoO₃ Nanobelts with High Activity against Antibiotic-Resistant Bacteria

Ultralow Loading Copper-Intercalated MoO₃ Nanobelts with High Activity against Antibiotic-Resistant Bacteria

Tailored Core–Shell Au/ZnO Hybrid Nanostars for Photochemical Water Splitting

Enhancing the Lithium Storage Performance of the Nb₂O₅ Anode via Synergistic Engineering of Phase and Cu Doping

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Atomic layer deposition of aluminum-doped zinc oxide onto MoO3 nanorods toward enhanced lithium storage performance

Cited by 17 publications

References 52 publications

Ultralow Loading Copper-Intercalated MoO3 Nanobelts with High Activity against Antibiotic-Resistant Bacteria

Ultralow Loading Copper-Intercalated MoO3 Nanobelts with High Activity against Antibiotic-Resistant Bacteria

Tailored Core–Shell Au/ZnO Hybrid Nanostars for Photochemical Water Splitting

Enhancing the Lithium Storage Performance of the Nb2O5 Anode via Synergistic Engineering of Phase and Cu Doping

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Product

Resources

About

Ultralow Loading Copper-Intercalated MoO₃ Nanobelts with High Activity against Antibiotic-Resistant Bacteria

Ultralow Loading Copper-Intercalated MoO₃ Nanobelts with High Activity against Antibiotic-Resistant Bacteria

Enhancing the Lithium Storage Performance of the Nb₂O₅ Anode via Synergistic Engineering of Phase and Cu Doping