Superior lithium storage performance in MoO3 by synergistic effects: Oxygen vacancies and nanostructures

Hou, Xueyang; Ruan, Miao; Zhou, Lijiao; Wu, Jianchun; Meng, Bicheng; Huang, Wenlong; Zhong, Kenan; Yang, Kai; Fang, Zhao; Xie, Keyu

doi:10.1016/j.jechem.2022.11.011

Cited by 23 publications

(5 citation statements)

References 55 publications

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“…In particular, Co 2+ doped α-MoO 3 will inevitably lead to oxygen vacancy, and the O 1s peaks in S1-S5 samples are depicted in figures 3(b)-(f). The peaks centered around 530.0 eV are associated with the lattice oxygen (O L ) and the peaks at around 532.0 eV are attributed to oxygen vacancy (O V ) [30]. The Co doped α-MoO 3 sample is in the thermodynamic state, and some oxygen ions move from the lattice to the grain boundary to maintain bond equilibrium, thus creating oxygen vacancies [26].…”

Section: Resultsmentioning

confidence: 99%

The novel Co-doped MoO₃ microwave absorber prepared by heat treatment

Zhang,

Qamar,

Peng

et al. 2023

J. Phys. D: Appl. Phys.

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A Co-doped α-MoO3 microwave absorber was prepared using by heat treatment technology. The oxygen vacancy, conductivity, and electromagnetic parameters of the material could be manipulated by changing the heat treatment temperature, and the microwave absorption mechanism was explored. XRD, Raman, SEM, XPS, and VNA were used to characterize the Co-doped α-MoO3 samples. The orthorhombic phases and scale-layer rod-like structure were observed to favor absorption via multiple transmission paths to EM waves. Notably, the material prepared by heat treatment at 500 °C exhibits a synergistic effect of magnetic and dielectric loss, due to its proper conductivity, rich interfaces and magnetism. The effective absorption bandwidth reaches 2.4 GHz .

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Section: Resultsmentioning

confidence: 99%

The novel Co-doped MoO₃ microwave absorber prepared by heat treatment

Zhang,

Qamar,

Peng

et al. 2023

J. Phys. D: Appl. Phys.

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“…The free electron concentration in MoOx can be significantly increased by introducing oxygen vacancies through H+ embedded in the intrinsic intercalation of the material. In addition, the embedded H+ can cause the expansion of the interlayer space, thus increasing the free electron concentration by introducing oxygen vacancies [32][33][34]. NMP is a non-protonic solvent with no hydrogen bonding between the solvent molecules, and also the photo-oxidation of NMP is weak.…”

Section: Development Of Uv Colorimetric Sensorsmentioning

confidence: 99%

MoOx-Based Colorimetric Sensor for Ultraviolet Visualization

Zheng,

Liu,

et al. 2024

Molecules

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Due to the depletion of the global ozone layer and the presence of ozone holes, humans are increasingly exposed to threats from solar ultraviolet radiation. Therefore, researching and developing a highly selective, sensitive, simple, and fast ultraviolet sensor is of significant importance for personal protection. In recent years, new nanomaterials have shown good application prospects in the research of ultraviolet sensors. MoOx nanostructures were prepared by a hydrothermal method. The experimental results show that, compared to traditional photochromic compounds, the new MoOx nanostructures exhibit high uniqueness, high selectivity, and excellent stability, and can perform rapid and accurate detection under full-band light. The beam sensor can not only detect through traditional electrical signal output, but also amplify, display, and analyze the beam through visualization and visual analysis, further improving the reliability and practicality of its application.

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“…To get around the problems with molybdenum oxides and get stable cycling with a higher reversible capacity and rate performance, researchers have looked into a number of effective strategies, especially to lower the diffusion barrier and band gap and shorten the electron and Li + diffusion channels [76]. When nanostructures like nanosheets, nanoparticles, nanobelts, and nanowires are made, it is easier for electrolyte ions to reach the active sites [75,76]. On the other hand, bandgap and diffusion barriers have been lowered via vacancy engineering and heteroatom doping.…”

Section: Lithium-ion Batteriesmentioning

confidence: 99%

“…On the other hand, bandgap and diffusion barriers have been lowered via vacancy engineering and heteroatom doping. The creation of oxygen vacancies has been suggested as a way to improve lithium storage efficiency since they can dramatically boost ion diffusion kinetics, increase electrical conductivity, and provide more active sites for redox reactions [76]. Lithium ions can be inserted and removed during charging and discharging cycles at the vacant sites in the MoO 3 crystal intralayer and interlayers [68].…”

Section: Lithium-ion Batteriesmentioning

confidence: 99%

“…The hydrogen doping preferentially chooses symmetric oxygen to generate the unstable OH group, which distorts the MoO 3 lattice. By releasing this unstable OH group as H 2 O into the solution, MoO 3 loses oxygen from its lattice and forms oxygen vacancies [76]. Two-dimensional (2D) MoO 3 materials have also attracted great interest due to the shortened lithium-ion transportation path and released stress concentration.…”

Section: Lithium-ion Batteriesmentioning

confidence: 99%

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A Brief Review of MoO3 and MoO3-Based Materials and Recent Technological Applications in Gas Sensors, Lithium-Ion Batteries, Adsorption, and Photocatalysis

da Silva Júnior,

Arzuza,

Sales

et al. 2023

Materials

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Molybdenum trioxide is an abundant natural, low-cost, and environmentally friendly material that has gained considerable attention from many researchers in a variety of high-impact applications. It is an attractive inorganic oxide that has been widely studied because of its layered structure, which results in intercalation ability through tetrahedral/octahedral holes and extension channels and leads to superior charge transfer. Shape-related properties such as high specific capacities, the presence of exposed active sites on the oxygen-rich structure, and its natural tendency to oxygen vacancy that leads to a high ionic conductivity are also attractive to technological applications. Due to its chemistry with multiple valence states, high thermal and chemical stability, high reduction potential, and electrochemical activity, many studies have focused on the development of molybdenum oxide-based systems in the last few years. Thus, this article aims to briefly review the latest advances in technological applications of MoO3 and MoO3-based materials in gas sensors, lithium-ion batteries, and water pollution treatment using adsorption and photocatalysis techniques, presenting the most relevant and new information on heterostructures, metal doping, and non-stoichiometric MoO3−x.

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Superior lithium storage performance in MoO3 by synergistic effects: Oxygen vacancies and nanostructures

Cited by 23 publications

References 55 publications

The novel Co-doped MoO₃ microwave absorber prepared by heat treatment

The novel Co-doped MoO₃ microwave absorber prepared by heat treatment

MoOx-Based Colorimetric Sensor for Ultraviolet Visualization

A Brief Review of MoO3 and MoO3-Based Materials and Recent Technological Applications in Gas Sensors, Lithium-Ion Batteries, Adsorption, and Photocatalysis

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Superior lithium storage performance in MoO3 by synergistic effects: Oxygen vacancies and nanostructures

Cited by 23 publications

References 55 publications

The novel Co-doped MoO3 microwave absorber prepared by heat treatment

The novel Co-doped MoO3 microwave absorber prepared by heat treatment

MoOx-Based Colorimetric Sensor for Ultraviolet Visualization

A Brief Review of MoO3 and MoO3-Based Materials and Recent Technological Applications in Gas Sensors, Lithium-Ion Batteries, Adsorption, and Photocatalysis

Contact Info

Product

Resources

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The novel Co-doped MoO₃ microwave absorber prepared by heat treatment

The novel Co-doped MoO₃ microwave absorber prepared by heat treatment